very small cross section
Dear Author,
I have a process with total cross section 1.00E-35 pb. MadGraph takes days to generate the events.
I asked to generate 10K events but it generates only 9 events !!
Is there any way to accelerate the calculation and get more events?
Thanks
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#1 |
Hi,
Since you do not provide any details on what you are trying to do. I do not have any idea of what the problem is.
So for speed point of view, you should try the following FAQ: https:/
For the low number of event, this typically means either a integration issue (due to too strong cut?) and/or a a divergency of the matrix-element which is not cut by the cut (i.e. too soft cut)
Cheers,
Olivier
> On 5 Mar 2017, at 22:09, ahh <email address hidden> wrote:
>
> New question #526618 on MadGraph5_aMC@NLO:
> https:/
>
> Dear Author,
>
> I have a process with total cross section 1.00E-35 pb. MadGraph takes days to generate the events.
> I asked to generate 10K events but it generates only 9 events !!
>
> Is there any way to accelerate the calculation and get more events?
>
> Thanks
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.
Dear prof,
I have generated the following process by using Madgraph for a certain
extension of the SM:
generate p p > zp, (zp > s1 s2, s2 > s1 z, z > l+ l-)
After that I have tried to generate 10000 events for this process but this
takes long time (couple of days). I think this because the total decay
width of s2 is very small (~10^-29 GeV). Is it right? If yes, could you
please tell me how I can overcome this problem
Thank you,
On Sun, Mar 5, 2017 at 11:18 PM, Olivier Mattelaer <
<email address hidden>> wrote:
> Your question #526618 on MadGraph5_aMC@NLO changed:
> https:/
>
> Status: Open => Answered
>
> Olivier Mattelaer proposed the following answer:
> Hi,
>
> Since you do not provide any details on what you are trying to do. I do
> not have any idea of what the problem is.
>
> So for speed point of view, you should try the following FAQ:
> https:/
>
> For the low number of event, this typically means either a integration
> issue (due to too strong cut?) and/or a a divergency of the matrix-
> element which is not cut by the cut (i.e. too soft cut)
>
> Cheers,
>
> Olivier
>
>
> > On 5 Mar 2017, at 22:09, ahh <email address hidden>
> wrote:
> >
> > New question #526618 on MadGraph5_aMC@NLO:
> > https:/
> >
> > Dear Author,
> >
> > I have a process with total cross section 1.00E-35 pb. MadGraph takes
> days to generate the events.
> > I asked to generate 10K events but it generates only 9 events !!
> >
> > Is there any way to accelerate the calculation and get more events?
> >
> > Thanks
> >
> > --
> > You received this question notification because you are an answer
> > contact for MadGraph5_aMC@NLO.
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https:/
> confirm?answer_id=0
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https:/
>
> You received this question notification because you asked the question.
>
--
Ahmed Hammad
Research Assistant
Center for Fundamental Physics
Zewail City of Science and Technology
Room : Physics centre ZC-2312
Sheikh Zayed District
Postal Code 12588
6th of October City
Giza
|
Revision history for this message
|
#3 |
Hi,
I would advise to increase the width to a much bigger value. Something of the order of the mass times 1e-8.
This will obviously impact your cross-section, but you can use the Narrow width approximation to correct for this effect.
You technically also have some change in the s2 invariant mass but the width that you are going to use is anyway too small for such effect to matter.
Cheers,
Olivier
> On 5 Mar 2017, at 23:18, ahh <email address hidden> wrote:
>
> Question #526618 on MadGraph5_aMC@NLO changed:
> https:/
>
> Status: Answered => Open
>
> ahh is still having a problem:
> Dear prof,
>
>
> I have generated the following process by using Madgraph for a certain
> extension of the SM:
>
> generate p p > zp, (zp > s1 s2, s2 > s1 z, z > l+ l-)
>
> After that I have tried to generate 10000 events for this process but this
> takes long time (couple of days). I think this because the total decay
> width of s2 is very small (~10^-29 GeV). Is it right? If yes, could you
> please tell me how I can overcome this problem
>
> Thank you,
>
> On Sun, Mar 5, 2017 at 11:18 PM, Olivier Mattelaer <
> <email address hidden>> wrote:
>
>> Your question #526618 on MadGraph5_aMC@NLO changed:
>> https:/
>>
>> Status: Open => Answered
>>
>> Olivier Mattelaer proposed the following answer:
>> Hi,
>>
>> Since you do not provide any details on what you are trying to do. I do
>> not have any idea of what the problem is.
>>
>> So for speed point of view, you should try the following FAQ:
>> https:/
>>
>> For the low number of event, this typically means either a integration
>> issue (due to too strong cut?) and/or a a divergency of the matrix-
>> element which is not cut by the cut (i.e. too soft cut)
>>
>> Cheers,
>>
>> Olivier
>>
>>
>>> On 5 Mar 2017, at 22:09, ahh <email address hidden>
>> wrote:
>>>
>>> New question #526618 on MadGraph5_aMC@NLO:
>>> https:/
>>>
>>> Dear Author,
>>>
>>> I have a process with total cross section 1.00E-35 pb. MadGraph takes
>> days to generate the events.
>>> I asked to generate 10K events but it generates only 9 events !!
>>>
>>> Is there any way to accelerate the calculation and get more events?
>>>
>>> Thanks
>>>
>>> --
>>> You received this question notification because you are an answer
>>> contact for MadGraph5_aMC@NLO.
>>
>> --
>> If this answers your question, please go to the following page to let us
>> know that it is solved:
>> https:/
>> confirm?answer_id=0
>>
>> If you still need help, you can reply to this email or go to the
>> following page to enter your feedback:
>> https:/
>>
>> You received this question notification because you asked the question.
>>
>
>
> --
>
>
> Ahmed Hammad
> Research Assistant
> Center for Fundamental Physics
> Zewail City of Science and Technology
> Room : Physics centre ZC-2312
>
> Sheikh Zayed District
> Postal Code 12588
> 6th of October City
> Giza
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.
Iam looking for displaced vertex and 1e-8 will not be sufficient, aim not
so curios about the cross section but the total width. is there any way to
correct the total width if i set it to 1e-8 ?
Thanks in advance for you help
On Mon, Mar 6, 2017 at 11:58 AM, Olivier Mattelaer <
<email address hidden>> wrote:
> Your question #526618 on MadGraph5_aMC@NLO changed:
> https:/
>
> Status: Open => Answered
>
> Olivier Mattelaer proposed the following answer:
> Hi,
>
> I would advise to increase the width to a much bigger value. Something of
> the order of the mass times 1e-8.
> This will obviously impact your cross-section, but you can use the Narrow
> width approximation to correct for this effect.
>
> You technically also have some change in the s2 invariant mass but the
> width that you are going to use is anyway too small for such effect to
> matter.
>
> Cheers,
>
> Olivier
>
>
> > On 5 Mar 2017, at 23:18, ahh <email address hidden>
> wrote:
> >
> > Question #526618 on MadGraph5_aMC@NLO changed:
> > https:/
> >
> > Status: Answered => Open
> >
> > ahh is still having a problem:
> > Dear prof,
> >
> >
> > I have generated the following process by using Madgraph for a certain
> > extension of the SM:
> >
> > generate p p > zp, (zp > s1 s2, s2 > s1 z, z > l+ l-)
> >
> > After that I have tried to generate 10000 events for this process but
> this
> > takes long time (couple of days). I think this because the total decay
> > width of s2 is very small (~10^-29 GeV). Is it right? If yes, could you
> > please tell me how I can overcome this problem
> >
> > Thank you,
> >
> > On Sun, Mar 5, 2017 at 11:18 PM, Olivier Mattelaer <
> > <email address hidden>> wrote:
> >
> >> Your question #526618 on MadGraph5_aMC@NLO changed:
> >> https:/
> >>
> >> Status: Open => Answered
> >>
> >> Olivier Mattelaer proposed the following answer:
> >> Hi,
> >>
> >> Since you do not provide any details on what you are trying to do. I do
> >> not have any idea of what the problem is.
> >>
> >> So for speed point of view, you should try the following FAQ:
> >> https:/
> >>
> >> For the low number of event, this typically means either a integration
> >> issue (due to too strong cut?) and/or a a divergency of the matrix-
> >> element which is not cut by the cut (i.e. too soft cut)
> >>
> >> Cheers,
> >>
> >> Olivier
> >>
> >>
> >>> On 5 Mar 2017, at 22:09, ahh <email address hidden>
> >> wrote:
> >>>
> >>> New question #526618 on MadGraph5_aMC@NLO:
> >>> https:/
> >>>
> >>> Dear Author,
> >>>
> >>> I have a process with total cross section 1.00E-35 pb. MadGraph takes
> >> days to generate the events.
> >>> I asked to generate 10K events but it generates only 9 events !!
> >>>
> >>> Is there any way to accelerate the calculation and get more events?
> >>>
> >>> Thanks
> >>>
> >>> --
> >>> You received this question notification because you are an answer
> >>> contact for MadGraph5_aMC@NLO.
> >>
> >> --
> >> If this answers your question, please go to the following page to let us
> >> know that it is solved:
> >> https:/
> >> confirm?answer_id=0
> >>
> >> If you still need help, you can reply to this email or go to the
> >> following page to enter your feedback:
> >> https:/
> >>
> >> You received this question notification because you asked the question.
> >>
> >
> >
> > --
> >
> >
> > Ahmed Hammad
> > Research Assistant
> > Center for Fundamental Physics
> > Zewail City of Science and Technology
> > Room : Physics centre ZC-2312
> >
> > Sheikh Zayed District
> > Postal Code 12588
> > 6th of October City
> > Giza
> >
> > --
> > You received this question notification because you are an answer
> > contact for MadGraph5_aMC@NLO.
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https:/
> confirm?answer_id=2
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https:/
>
> You received this question notification because you asked the question.
>
--
Ahmed Hammad
Research Assistant
Center for Fundamental Physics
Zewail City of Science and Technology
Room : Physics centre ZC-2312
Sheikh Zayed District
Postal Code 12588
6th of October City
Giza
|
Revision history for this message
|
#5 |
Hi,
The displace vertex treatment at this level is actually very basic.
(It is just a function of the width which predicts the “distance”)
So the easiest is probably to do it yourself.
Otherwise, what you can do is
1) generate with a width of 1e-8 (without asking for a displaced vertex)
2) modify by hand the lhe file and set the width to the value that you want.
3) run ./bin/madevent
4) type "add_time_of_flight run_01 —threshold=XX”
Cheers,
Olivier
> On 6 Mar 2017, at 11:33, ahh <email address hidden> wrote:
>
> Question #526618 on MadGraph5_aMC@NLO changed:
> https:/
>
> Status: Answered => Open
>
> ahh is still having a problem:
> Iam looking for displaced vertex and 1e-8 will not be sufficient, aim not
> so curios about the cross section but the total width. is there any way to
> correct the total width if i set it to 1e-8 ?
>
> Thanks in advance for you help
>
> On Mon, Mar 6, 2017 at 11:58 AM, Olivier Mattelaer <
> <email address hidden>> wrote:
>
>> Your question #526618 on MadGraph5_aMC@NLO changed:
>> https:/
>>
>> Status: Open => Answered
>>
>> Olivier Mattelaer proposed the following answer:
>> Hi,
>>
>> I would advise to increase the width to a much bigger value. Something of
>> the order of the mass times 1e-8.
>> This will obviously impact your cross-section, but you can use the Narrow
>> width approximation to correct for this effect.
>>
>> You technically also have some change in the s2 invariant mass but the
>> width that you are going to use is anyway too small for such effect to
>> matter.
>>
>> Cheers,
>>
>> Olivier
>>
>>
>>> On 5 Mar 2017, at 23:18, ahh <email address hidden>
>> wrote:
>>>
>>> Question #526618 on MadGraph5_aMC@NLO changed:
>>> https:/
>>>
>>> Status: Answered => Open
>>>
>>> ahh is still having a problem:
>>> Dear prof,
>>>
>>>
>>> I have generated the following process by using Madgraph for a certain
>>> extension of the SM:
>>>
>>> generate p p > zp, (zp > s1 s2, s2 > s1 z, z > l+ l-)
>>>
>>> After that I have tried to generate 10000 events for this process but
>> this
>>> takes long time (couple of days). I think this because the total decay
>>> width of s2 is very small (~10^-29 GeV). Is it right? If yes, could you
>>> please tell me how I can overcome this problem
>>>
>>> Thank you,
>>>
>>> On Sun, Mar 5, 2017 at 11:18 PM, Olivier Mattelaer <
>>> <email address hidden>> wrote:
>>>
>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
>>>> https:/
>>>>
>>>> Status: Open => Answered
>>>>
>>>> Olivier Mattelaer proposed the following answer:
>>>> Hi,
>>>>
>>>> Since you do not provide any details on what you are trying to do. I do
>>>> not have any idea of what the problem is.
>>>>
>>>> So for speed point of view, you should try the following FAQ:
>>>> https:/
>>>>
>>>> For the low number of event, this typically means either a integration
>>>> issue (due to too strong cut?) and/or a a divergency of the matrix-
>>>> element which is not cut by the cut (i.e. too soft cut)
>>>>
>>>> Cheers,
>>>>
>>>> Olivier
>>>>
>>>>
>>>>> On 5 Mar 2017, at 22:09, ahh <email address hidden>
>>>> wrote:
>>>>>
>>>>> New question #526618 on MadGraph5_aMC@NLO:
>>>>> https:/
>>>>>
>>>>> Dear Author,
>>>>>
>>>>> I have a process with total cross section 1.00E-35 pb. MadGraph takes
>>>> days to generate the events.
>>>>> I asked to generate 10K events but it generates only 9 events !!
>>>>>
>>>>> Is there any way to accelerate the calculation and get more events?
>>>>>
>>>>> Thanks
>>>>>
>>>>> --
>>>>> You received this question notification because you are an answer
>>>>> contact for MadGraph5_aMC@NLO.
>>>>
>>>> --
>>>> If this answers your question, please go to the following page to let us
>>>> know that it is solved:
>>>> https:/
>>>> confirm?answer_id=0
>>>>
>>>> If you still need help, you can reply to this email or go to the
>>>> following page to enter your feedback:
>>>> https:/
>>>>
>>>> You received this question notification because you asked the question.
>>>>
>>>
>>>
>>> --
>>>
>>>
>>> Ahmed Hammad
>>> Research Assistant
>>> Center for Fundamental Physics
>>> Zewail City of Science and Technology
>>> Room : Physics centre ZC-2312
>>>
>>> Sheikh Zayed District
>>> Postal Code 12588
>>> 6th of October City
>>> Giza
>>>
>>> --
>>> You received this question notification because you are an answer
>>> contact for MadGraph5_aMC@NLO.
>>
>> --
>> If this answers your question, please go to the following page to let us
>> know that it is solved:
>> https:/
>> confirm?answer_id=2
>>
>> If you still need help, you can reply to this email or go to the
>> following page to enter your feedback:
>> https:/
>>
>> You received this question notification because you asked the question.
>>
>
>
> --
>
>
> Ahmed Hammad
> Research Assistant
> Center for Fundamental Physics
> Zewail City of Science and Technology
> Room : Physics centre ZC-2312
>
> Sheikh Zayed District
> Postal Code 12588
> 6th of October City
> Giza
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.
Hello Prof,
Thanks a lot for your help, indeed helps.
but during the mad event command i got the following error :
Command "add_time_of_flight run_01 --threshold=100" interrupted with error:
KeyError : 'id (2,) is not in decay'
As well i attach the log file.
Thank you in advance
On Mon, Mar 6, 2017 at 3:53 PM, Olivier Mattelaer <
<email address hidden>> wrote:
> Your question #526618 on MadGraph5_aMC@NLO changed:
> https:/
>
> Status: Open => Answered
>
> Olivier Mattelaer proposed the following answer:
> Hi,
>
> The displace vertex treatment at this level is actually very basic.
> (It is just a function of the width which predicts the “distance”)
> So the easiest is probably to do it yourself.
>
> Otherwise, what you can do is
> 1) generate with a width of 1e-8 (without asking for a displaced vertex)
> 2) modify by hand the lhe file and set the width to the value that you
> want.
> 3) run ./bin/madevent
> 4) type "add_time_of_flight run_01 —threshold=XX”
>
> Cheers,
>
> Olivier
>
>
>
> > On 6 Mar 2017, at 11:33, ahh <email address hidden>
> wrote:
> >
> > Question #526618 on MadGraph5_aMC@NLO changed:
> > https:/
> >
> > Status: Answered => Open
> >
> > ahh is still having a problem:
> > Iam looking for displaced vertex and 1e-8 will not be sufficient, aim
> not
> > so curios about the cross section but the total width. is there any way
> to
> > correct the total width if i set it to 1e-8 ?
> >
> > Thanks in advance for you help
> >
> > On Mon, Mar 6, 2017 at 11:58 AM, Olivier Mattelaer <
> > <email address hidden>> wrote:
> >
> >> Your question #526618 on MadGraph5_aMC@NLO changed:
> >> https:/
> >>
> >> Status: Open => Answered
> >>
> >> Olivier Mattelaer proposed the following answer:
> >> Hi,
> >>
> >> I would advise to increase the width to a much bigger value. Something
> of
> >> the order of the mass times 1e-8.
> >> This will obviously impact your cross-section, but you can use the
> Narrow
> >> width approximation to correct for this effect.
> >>
> >> You technically also have some change in the s2 invariant mass but the
> >> width that you are going to use is anyway too small for such effect to
> >> matter.
> >>
> >> Cheers,
> >>
> >> Olivier
> >>
> >>
> >>> On 5 Mar 2017, at 23:18, ahh <email address hidden>
> >> wrote:
> >>>
> >>> Question #526618 on MadGraph5_aMC@NLO changed:
> >>> https:/
> >>>
> >>> Status: Answered => Open
> >>>
> >>> ahh is still having a problem:
> >>> Dear prof,
> >>>
> >>>
> >>> I have generated the following process by using Madgraph for a certain
> >>> extension of the SM:
> >>>
> >>> generate p p > zp, (zp > s1 s2, s2 > s1 z, z > l+ l-)
> >>>
> >>> After that I have tried to generate 10000 events for this process but
> >> this
> >>> takes long time (couple of days). I think this because the total decay
> >>> width of s2 is very small (~10^-29 GeV). Is it right? If yes, could you
> >>> please tell me how I can overcome this problem
> >>>
> >>> Thank you,
> >>>
> >>> On Sun, Mar 5, 2017 at 11:18 PM, Olivier Mattelaer <
> >>> <email address hidden>> wrote:
> >>>
> >>>> Your question #526618 on MadGraph5_aMC@NLO changed:
> >>>> https:/
> >>>>
> >>>> Status: Open => Answered
> >>>>
> >>>> Olivier Mattelaer proposed the following answer:
> >>>> Hi,
> >>>>
> >>>> Since you do not provide any details on what you are trying to do. I
> do
> >>>> not have any idea of what the problem is.
> >>>>
> >>>> So for speed point of view, you should try the following FAQ:
> >>>> https:/
> >>>>
> >>>> For the low number of event, this typically means either a integration
> >>>> issue (due to too strong cut?) and/or a a divergency of the matrix-
> >>>> element which is not cut by the cut (i.e. too soft cut)
> >>>>
> >>>> Cheers,
> >>>>
> >>>> Olivier
> >>>>
> >>>>
> >>>>> On 5 Mar 2017, at 22:09, ahh <email address hidden>
> >>>> wrote:
> >>>>>
> >>>>> New question #526618 on MadGraph5_aMC@NLO:
> >>>>> https:/
> >>>>>
> >>>>> Dear Author,
> >>>>>
> >>>>> I have a process with total cross section 1.00E-35 pb. MadGraph takes
> >>>> days to generate the events.
> >>>>> I asked to generate 10K events but it generates only 9 events !!
> >>>>>
> >>>>> Is there any way to accelerate the calculation and get more events?
> >>>>>
> >>>>> Thanks
> >>>>>
> >>>>> --
> >>>>> You received this question notification because you are an answer
> >>>>> contact for MadGraph5_aMC@NLO.
> >>>>
> >>>> --
> >>>> If this answers your question, please go to the following page to let
> us
> >>>> know that it is solved:
> >>>> https:/
> >>>> confirm?answer_id=0
> >>>>
> >>>> If you still need help, you can reply to this email or go to the
> >>>> following page to enter your feedback:
> >>>> https:/
> >>>>
> >>>> You received this question notification because you asked the
> question.
> >>>>
> >>>
> >>>
> >>> --
> >>>
> >>>
> >>> Ahmed Hammad
> >>> Research Assistant
> >>> Center for Fundamental Physics
> >>> Zewail City of Science and Technology
> >>> Room : Physics centre ZC-2312
> >>>
> >>> Sheikh Zayed District
> >>> Postal Code 12588
> >>> 6th of October City
> >>> Giza
> >>>
> >>> --
> >>> You received this question notification because you are an answer
> >>> contact for MadGraph5_aMC@NLO.
> >>
> >> --
> >> If this answers your question, please go to the following page to let us
> >> know that it is solved:
> >> https:/
> >> confirm?answer_id=2
> >>
> >> If you still need help, you can reply to this email or go to the
> >> following page to enter your feedback:
> >> https:/
> >>
> >> You received this question notification because you asked the question.
> >>
> >
> >
> > --
> >
> >
> > Ahmed Hammad
> > Research Assistant
> > Center for Fundamental Physics
> > Zewail City of Science and Technology
> > Room : Physics centre ZC-2312
> >
> > Sheikh Zayed District
> > Postal Code 12588
> > 6th of October City
> > Giza
> >
> > --
> > You received this question notification because you are an answer
> > contact for MadGraph5_aMC@NLO.
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https:/
> confirm?answer_id=4
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https:/
>
> You received this question notification because you asked the question.
>
--
Ahmed Hammad
Research Assistant
Center for Fundamental Physics
Zewail City of Science and Technology
Room : Physics centre ZC-2312
Sheikh Zayed District
Postal Code 12588
6th of October City
Giza
|
Revision history for this message
|
#7 |
Hi,
For this to work, you need to have ALL particle defined in your model to have a width in your param_card.dat
Looks like you are missing some.
(Likely also that you are using an old version of the code, since recent version should automatically add such value)
Cheers,
Olivier
> On 7 Mar 2017, at 14:13, ahh <email address hidden> wrote:
>
> Question #526618 on MadGraph5_aMC@NLO changed:
> https:/
>
> Status: Answered => Open
>
> ahh is still having a problem:
> Hello Prof,
>
> Thanks a lot for your help, indeed helps.
>
> but during the mad event command i got the following error :
> Command "add_time_of_flight run_01 --threshold=100" interrupted with error:
> KeyError : 'id (2,) is not in decay'
>
> As well i attach the log file.
>
> Thank you in advance
>
> On Mon, Mar 6, 2017 at 3:53 PM, Olivier Mattelaer <
> <email address hidden>> wrote:
>
>> Your question #526618 on MadGraph5_aMC@NLO changed:
>> https:/
>>
>> Status: Open => Answered
>>
>> Olivier Mattelaer proposed the following answer:
>> Hi,
>>
>> The displace vertex treatment at this level is actually very basic.
>> (It is just a function of the width which predicts the “distance”)
>> So the easiest is probably to do it yourself.
>>
>> Otherwise, what you can do is
>> 1) generate with a width of 1e-8 (without asking for a displaced vertex)
>> 2) modify by hand the lhe file and set the width to the value that you
>> want.
>> 3) run ./bin/madevent
>> 4) type "add_time_of_flight run_01 —threshold=XX”
>>
>> Cheers,
>>
>> Olivier
>>
>>
>>
>>> On 6 Mar 2017, at 11:33, ahh <email address hidden>
>> wrote:
>>>
>>> Question #526618 on MadGraph5_aMC@NLO changed:
>>> https:/
>>>
>>> Status: Answered => Open
>>>
>>> ahh is still having a problem:
>>> Iam looking for displaced vertex and 1e-8 will not be sufficient, aim
>> not
>>> so curios about the cross section but the total width. is there any way
>> to
>>> correct the total width if i set it to 1e-8 ?
>>>
>>> Thanks in advance for you help
>>>
>>> On Mon, Mar 6, 2017 at 11:58 AM, Olivier Mattelaer <
>>> <email address hidden>> wrote:
>>>
>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
>>>> https:/
>>>>
>>>> Status: Open => Answered
>>>>
>>>> Olivier Mattelaer proposed the following answer:
>>>> Hi,
>>>>
>>>> I would advise to increase the width to a much bigger value. Something
>> of
>>>> the order of the mass times 1e-8.
>>>> This will obviously impact your cross-section, but you can use the
>> Narrow
>>>> width approximation to correct for this effect.
>>>>
>>>> You technically also have some change in the s2 invariant mass but the
>>>> width that you are going to use is anyway too small for such effect to
>>>> matter.
>>>>
>>>> Cheers,
>>>>
>>>> Olivier
>>>>
>>>>
>>>>> On 5 Mar 2017, at 23:18, ahh <email address hidden>
>>>> wrote:
>>>>>
>>>>> Question #526618 on MadGraph5_aMC@NLO changed:
>>>>> https:/
>>>>>
>>>>> Status: Answered => Open
>>>>>
>>>>> ahh is still having a problem:
>>>>> Dear prof,
>>>>>
>>>>>
>>>>> I have generated the following process by using Madgraph for a certain
>>>>> extension of the SM:
>>>>>
>>>>> generate p p > zp, (zp > s1 s2, s2 > s1 z, z > l+ l-)
>>>>>
>>>>> After that I have tried to generate 10000 events for this process but
>>>> this
>>>>> takes long time (couple of days). I think this because the total decay
>>>>> width of s2 is very small (~10^-29 GeV). Is it right? If yes, could you
>>>>> please tell me how I can overcome this problem
>>>>>
>>>>> Thank you,
>>>>>
>>>>> On Sun, Mar 5, 2017 at 11:18 PM, Olivier Mattelaer <
>>>>> <email address hidden>> wrote:
>>>>>
>>>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
>>>>>> https:/
>>>>>>
>>>>>> Status: Open => Answered
>>>>>>
>>>>>> Olivier Mattelaer proposed the following answer:
>>>>>> Hi,
>>>>>>
>>>>>> Since you do not provide any details on what you are trying to do. I
>> do
>>>>>> not have any idea of what the problem is.
>>>>>>
>>>>>> So for speed point of view, you should try the following FAQ:
>>>>>> https:/
>>>>>>
>>>>>> For the low number of event, this typically means either a integration
>>>>>> issue (due to too strong cut?) and/or a a divergency of the matrix-
>>>>>> element which is not cut by the cut (i.e. too soft cut)
>>>>>>
>>>>>> Cheers,
>>>>>>
>>>>>> Olivier
>>>>>>
>>>>>>
>>>>>>> On 5 Mar 2017, at 22:09, ahh <email address hidden>
>>>>>> wrote:
>>>>>>>
>>>>>>> New question #526618 on MadGraph5_aMC@NLO:
>>>>>>> https:/
>>>>>>>
>>>>>>> Dear Author,
>>>>>>>
>>>>>>> I have a process with total cross section 1.00E-35 pb. MadGraph takes
>>>>>> days to generate the events.
>>>>>>> I asked to generate 10K events but it generates only 9 events !!
>>>>>>>
>>>>>>> Is there any way to accelerate the calculation and get more events?
>>>>>>>
>>>>>>> Thanks
>>>>>>>
>>>>>>> --
>>>>>>> You received this question notification because you are an answer
>>>>>>> contact for MadGraph5_aMC@NLO.
>>>>>>
>>>>>> --
>>>>>> If this answers your question, please go to the following page to let
>> us
>>>>>> know that it is solved:
>>>>>> https:/
>>>>>> confirm?answer_id=0
>>>>>>
>>>>>> If you still need help, you can reply to this email or go to the
>>>>>> following page to enter your feedback:
>>>>>> https:/
>>>>>>
>>>>>> You received this question notification because you asked the
>> question.
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>>
>>>>> Ahmed Hammad
>>>>> Research Assistant
>>>>> Center for Fundamental Physics
>>>>> Zewail City of Science and Technology
>>>>> Room : Physics centre ZC-2312
>>>>>
>>>>> Sheikh Zayed District
>>>>> Postal Code 12588
>>>>> 6th of October City
>>>>> Giza
>>>>>
>>>>> --
>>>>> You received this question notification because you are an answer
>>>>> contact for MadGraph5_aMC@NLO.
>>>>
>>>> --
>>>> If this answers your question, please go to the following page to let us
>>>> know that it is solved:
>>>> https:/
>>>> confirm?answer_id=2
>>>>
>>>> If you still need help, you can reply to this email or go to the
>>>> following page to enter your feedback:
>>>> https:/
>>>>
>>>> You received this question notification because you asked the question.
>>>>
>>>
>>>
>>> --
>>>
>>>
>>> Ahmed Hammad
>>> Research Assistant
>>> Center for Fundamental Physics
>>> Zewail City of Science and Technology
>>> Room : Physics centre ZC-2312
>>>
>>> Sheikh Zayed District
>>> Postal Code 12588
>>> 6th of October City
>>> Giza
>>>
>>> --
>>> You received this question notification because you are an answer
>>> contact for MadGraph5_aMC@NLO.
>>
>> --
>> If this answers your question, please go to the following page to let us
>> know that it is solved:
>> https:/
>> confirm?answer_id=4
>>
>> If you still need help, you can reply to this email or go to the
>> following page to enter your feedback:
>> https:/
>>
>> You received this question notification because you asked the question.
>>
>
>
> --
>
>
> Ahmed Hammad
> Research Assistant
> Center for Fundamental Physics
> Zewail City of Science and Technology
> Room : Physics centre ZC-2312
>
> Sheikh Zayed District
> Postal Code 12588
> 6th of October City
> Giza
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.
Hello Prof,
Sorry for asking a lot,
Indeed i revised my param_card.dat many times and i found it ideal and
every thing is defined !!
Here i attach it.
Many thanks
On Tue, Mar 7, 2017 at 3:32 PM, Olivier Mattelaer <
<email address hidden>> wrote:
> Your question #526618 on MadGraph5_aMC@NLO changed:
> https:/
>
> Status: Open => Answered
>
> Olivier Mattelaer proposed the following answer:
> Hi,
>
> For this to work, you need to have ALL particle defined in your model to
> have a width in your param_card.dat
> Looks like you are missing some.
> (Likely also that you are using an old version of the code, since recent
> version should automatically add such value)
>
> Cheers,
>
> Olivier
> > On 7 Mar 2017, at 14:13, ahh <email address hidden>
> wrote:
> >
> > Question #526618 on MadGraph5_aMC@NLO changed:
> > https:/
> >
> > Status: Answered => Open
> >
> > ahh is still having a problem:
> > Hello Prof,
> >
> > Thanks a lot for your help, indeed helps.
> >
> > but during the mad event command i got the following error :
> > Command "add_time_of_flight run_01 --threshold=100" interrupted with
> error:
> > KeyError : 'id (2,) is not in decay'
> >
> > As well i attach the log file.
> >
> > Thank you in advance
> >
> > On Mon, Mar 6, 2017 at 3:53 PM, Olivier Mattelaer <
> > <email address hidden>> wrote:
> >
> >> Your question #526618 on MadGraph5_aMC@NLO changed:
> >> https:/
> >>
> >> Status: Open => Answered
> >>
> >> Olivier Mattelaer proposed the following answer:
> >> Hi,
> >>
> >> The displace vertex treatment at this level is actually very basic.
> >> (It is just a function of the width which predicts the “distance”)
> >> So the easiest is probably to do it yourself.
> >>
> >> Otherwise, what you can do is
> >> 1) generate with a width of 1e-8 (without asking for a displaced vertex)
> >> 2) modify by hand the lhe file and set the width to the value that you
> >> want.
> >> 3) run ./bin/madevent
> >> 4) type "add_time_of_flight run_01 —threshold=XX”
> >>
> >> Cheers,
> >>
> >> Olivier
> >>
> >>
> >>
> >>> On 6 Mar 2017, at 11:33, ahh <email address hidden>
> >> wrote:
> >>>
> >>> Question #526618 on MadGraph5_aMC@NLO changed:
> >>> https:/
> >>>
> >>> Status: Answered => Open
> >>>
> >>> ahh is still having a problem:
> >>> Iam looking for displaced vertex and 1e-8 will not be sufficient, aim
> >> not
> >>> so curios about the cross section but the total width. is there any way
> >> to
> >>> correct the total width if i set it to 1e-8 ?
> >>>
> >>> Thanks in advance for you help
> >>>
> >>> On Mon, Mar 6, 2017 at 11:58 AM, Olivier Mattelaer <
> >>> <email address hidden>> wrote:
> >>>
> >>>> Your question #526618 on MadGraph5_aMC@NLO changed:
> >>>> https:/
> >>>>
> >>>> Status: Open => Answered
> >>>>
> >>>> Olivier Mattelaer proposed the following answer:
> >>>> Hi,
> >>>>
> >>>> I would advise to increase the width to a much bigger value. Something
> >> of
> >>>> the order of the mass times 1e-8.
> >>>> This will obviously impact your cross-section, but you can use the
> >> Narrow
> >>>> width approximation to correct for this effect.
> >>>>
> >>>> You technically also have some change in the s2 invariant mass but the
> >>>> width that you are going to use is anyway too small for such effect to
> >>>> matter.
> >>>>
> >>>> Cheers,
> >>>>
> >>>> Olivier
> >>>>
> >>>>
> >>>>> On 5 Mar 2017, at 23:18, ahh <email address hidden>
> >>>> wrote:
> >>>>>
> >>>>> Question #526618 on MadGraph5_aMC@NLO changed:
> >>>>> https:/
> >>>>>
> >>>>> Status: Answered => Open
> >>>>>
> >>>>> ahh is still having a problem:
> >>>>> Dear prof,
> >>>>>
> >>>>>
> >>>>> I have generated the following process by using Madgraph for a
> certain
> >>>>> extension of the SM:
> >>>>>
> >>>>> generate p p > zp, (zp > s1 s2, s2 > s1 z, z > l+ l-)
> >>>>>
> >>>>> After that I have tried to generate 10000 events for this process but
> >>>> this
> >>>>> takes long time (couple of days). I think this because the total
> decay
> >>>>> width of s2 is very small (~10^-29 GeV). Is it right? If yes, could
> you
> >>>>> please tell me how I can overcome this problem
> >>>>>
> >>>>> Thank you,
> >>>>>
> >>>>> On Sun, Mar 5, 2017 at 11:18 PM, Olivier Mattelaer <
> >>>>> <email address hidden>> wrote:
> >>>>>
> >>>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
> >>>>>> https:/
> >>>>>>
> >>>>>> Status: Open => Answered
> >>>>>>
> >>>>>> Olivier Mattelaer proposed the following answer:
> >>>>>> Hi,
> >>>>>>
> >>>>>> Since you do not provide any details on what you are trying to do. I
> >> do
> >>>>>> not have any idea of what the problem is.
> >>>>>>
> >>>>>> So for speed point of view, you should try the following FAQ:
> >>>>>> https:/
> >>>>>>
> >>>>>> For the low number of event, this typically means either a
> integration
> >>>>>> issue (due to too strong cut?) and/or a a divergency of the matrix-
> >>>>>> element which is not cut by the cut (i.e. too soft cut)
> >>>>>>
> >>>>>> Cheers,
> >>>>>>
> >>>>>> Olivier
> >>>>>>
> >>>>>>
> >>>>>>> On 5 Mar 2017, at 22:09, ahh <<email address hidden>
> >
> >>>>>> wrote:
> >>>>>>>
> >>>>>>> New question #526618 on MadGraph5_aMC@NLO:
> >>>>>>> https:/
> >>>>>>>
> >>>>>>> Dear Author,
> >>>>>>>
> >>>>>>> I have a process with total cross section 1.00E-35 pb. MadGraph
> takes
> >>>>>> days to generate the events.
> >>>>>>> I asked to generate 10K events but it generates only 9 events !!
> >>>>>>>
> >>>>>>> Is there any way to accelerate the calculation and get more events?
> >>>>>>>
> >>>>>>> Thanks
> >>>>>>>
> >>>>>>> --
> >>>>>>> You received this question notification because you are an answer
> >>>>>>> contact for MadGraph5_aMC@NLO.
> >>>>>>
> >>>>>> --
> >>>>>> If this answers your question, please go to the following page to
> let
> >> us
> >>>>>> know that it is solved:
> >>>>>> https:/
> >>>>>> confirm?answer_id=0
> >>>>>>
> >>>>>> If you still need help, you can reply to this email or go to the
> >>>>>> following page to enter your feedback:
> >>>>>> https:/
> >>>>>>
> >>>>>> You received this question notification because you asked the
> >> question.
> >>>>>>
> >>>>>
> >>>>>
> >>>>> --
> >>>>>
> >>>>>
> >>>>> Ahmed Hammad
> >>>>> Research Assistant
> >>>>> Center for Fundamental Physics
> >>>>> Zewail City of Science and Technology
> >>>>> Room : Physics centre ZC-2312
> >>>>>
> >>>>> Sheikh Zayed District
> >>>>> Postal Code 12588
> >>>>> 6th of October City
> >>>>> Giza
> >>>>>
> >>>>> --
> >>>>> You received this question notification because you are an answer
> >>>>> contact for MadGraph5_aMC@NLO.
> >>>>
> >>>> --
> >>>> If this answers your question, please go to the following page to let
> us
> >>>> know that it is solved:
> >>>> https:/
> >>>> confirm?answer_id=2
> >>>>
> >>>> If you still need help, you can reply to this email or go to the
> >>>> following page to enter your feedback:
> >>>> https:/
> >>>>
> >>>> You received this question notification because you asked the
> question.
> >>>>
> >>>
> >>>
> >>> --
> >>>
> >>>
> >>> Ahmed Hammad
> >>> Research Assistant
> >>> Center for Fundamental Physics
> >>> Zewail City of Science and Technology
> >>> Room : Physics centre ZC-2312
> >>>
> >>> Sheikh Zayed District
> >>> Postal Code 12588
> >>> 6th of October City
> >>> Giza
> >>>
> >>> --
> >>> You received this question notification because you are an answer
> >>> contact for MadGraph5_aMC@NLO.
> >>
> >> --
> >> If this answers your question, please go to the following page to let us
> >> know that it is solved:
> >> https:/
> >> confirm?answer_id=4
> >>
> >> If you still need help, you can reply to this email or go to the
> >> following page to enter your feedback:
> >> https:/
> >>
> >> You received this question notification because you asked the question.
> >>
> >
> >
> > --
> >
> >
> > Ahmed Hammad
> > Research Assistant
> > Center for Fundamental Physics
> > Zewail City of Science and Technology
> > Room : Physics centre ZC-2312
> >
> > Sheikh Zayed District
> > Postal Code 12588
> > 6th of October City
> > Giza
> >
> > --
> > You received this question notification because you are an answer
> > contact for MadGraph5_aMC@NLO.
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https:/
> confirm?answer_id=6
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https:/
>
> You received this question notification because you asked the question.
>
--
Ahmed Hammad
Research Assistant
Center for Fundamental Physics
Zewail City of Science and Technology
Room : Physics centre ZC-2312
Sheikh Zayed District
Postal Code 12588
6th of October City
Giza
|
Revision history for this message
|
#9 |
Hi,
You did not attach file (actually they are no way to attach file)
But did you try to use the latest version of the code?
I know that I already fixed such issue (it might be in the development version but I think that such fix is already released)
Cheers,
Olivier
> On 7 Mar 2017, at 21:45, ahh <email address hidden> wrote:
>
> Question #526618 on MadGraph5_aMC@NLO changed:
> https:/
>
> Status: Answered => Open
>
> ahh is still having a problem:
> Hello Prof,
> Sorry for asking a lot,
> Indeed i revised my param_card.dat many times and i found it ideal and
> every thing is defined !!
> Here i attach it.
>
> Many thanks
>
> On Tue, Mar 7, 2017 at 3:32 PM, Olivier Mattelaer <
> <email address hidden>> wrote:
>
>> Your question #526618 on MadGraph5_aMC@NLO changed:
>> https:/
>>
>> Status: Open => Answered
>>
>> Olivier Mattelaer proposed the following answer:
>> Hi,
>>
>> For this to work, you need to have ALL particle defined in your model to
>> have a width in your param_card.dat
>> Looks like you are missing some.
>> (Likely also that you are using an old version of the code, since recent
>> version should automatically add such value)
>>
>> Cheers,
>>
>> Olivier
>>> On 7 Mar 2017, at 14:13, ahh <email address hidden>
>> wrote:
>>>
>>> Question #526618 on MadGraph5_aMC@NLO changed:
>>> https:/
>>>
>>> Status: Answered => Open
>>>
>>> ahh is still having a problem:
>>> Hello Prof,
>>>
>>> Thanks a lot for your help, indeed helps.
>>>
>>> but during the mad event command i got the following error :
>>> Command "add_time_of_flight run_01 --threshold=100" interrupted with
>> error:
>>> KeyError : 'id (2,) is not in decay'
>>>
>>> As well i attach the log file.
>>>
>>> Thank you in advance
>>>
>>> On Mon, Mar 6, 2017 at 3:53 PM, Olivier Mattelaer <
>>> <email address hidden>> wrote:
>>>
>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
>>>> https:/
>>>>
>>>> Status: Open => Answered
>>>>
>>>> Olivier Mattelaer proposed the following answer:
>>>> Hi,
>>>>
>>>> The displace vertex treatment at this level is actually very basic.
>>>> (It is just a function of the width which predicts the “distance”)
>>>> So the easiest is probably to do it yourself.
>>>>
>>>> Otherwise, what you can do is
>>>> 1) generate with a width of 1e-8 (without asking for a displaced vertex)
>>>> 2) modify by hand the lhe file and set the width to the value that you
>>>> want.
>>>> 3) run ./bin/madevent
>>>> 4) type "add_time_of_flight run_01 —threshold=XX”
>>>>
>>>> Cheers,
>>>>
>>>> Olivier
>>>>
>>>>
>>>>
>>>>> On 6 Mar 2017, at 11:33, ahh <email address hidden>
>>>> wrote:
>>>>>
>>>>> Question #526618 on MadGraph5_aMC@NLO changed:
>>>>> https:/
>>>>>
>>>>> Status: Answered => Open
>>>>>
>>>>> ahh is still having a problem:
>>>>> Iam looking for displaced vertex and 1e-8 will not be sufficient, aim
>>>> not
>>>>> so curios about the cross section but the total width. is there any way
>>>> to
>>>>> correct the total width if i set it to 1e-8 ?
>>>>>
>>>>> Thanks in advance for you help
>>>>>
>>>>> On Mon, Mar 6, 2017 at 11:58 AM, Olivier Mattelaer <
>>>>> <email address hidden>> wrote:
>>>>>
>>>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
>>>>>> https:/
>>>>>>
>>>>>> Status: Open => Answered
>>>>>>
>>>>>> Olivier Mattelaer proposed the following answer:
>>>>>> Hi,
>>>>>>
>>>>>> I would advise to increase the width to a much bigger value. Something
>>>> of
>>>>>> the order of the mass times 1e-8.
>>>>>> This will obviously impact your cross-section, but you can use the
>>>> Narrow
>>>>>> width approximation to correct for this effect.
>>>>>>
>>>>>> You technically also have some change in the s2 invariant mass but the
>>>>>> width that you are going to use is anyway too small for such effect to
>>>>>> matter.
>>>>>>
>>>>>> Cheers,
>>>>>>
>>>>>> Olivier
>>>>>>
>>>>>>
>>>>>>> On 5 Mar 2017, at 23:18, ahh <email address hidden>
>>>>>> wrote:
>>>>>>>
>>>>>>> Question #526618 on MadGraph5_aMC@NLO changed:
>>>>>>> https:/
>>>>>>>
>>>>>>> Status: Answered => Open
>>>>>>>
>>>>>>> ahh is still having a problem:
>>>>>>> Dear prof,
>>>>>>>
>>>>>>>
>>>>>>> I have generated the following process by using Madgraph for a
>> certain
>>>>>>> extension of the SM:
>>>>>>>
>>>>>>> generate p p > zp, (zp > s1 s2, s2 > s1 z, z > l+ l-)
>>>>>>>
>>>>>>> After that I have tried to generate 10000 events for this process but
>>>>>> this
>>>>>>> takes long time (couple of days). I think this because the total
>> decay
>>>>>>> width of s2 is very small (~10^-29 GeV). Is it right? If yes, could
>> you
>>>>>>> please tell me how I can overcome this problem
>>>>>>>
>>>>>>> Thank you,
>>>>>>>
>>>>>>> On Sun, Mar 5, 2017 at 11:18 PM, Olivier Mattelaer <
>>>>>>> <email address hidden>> wrote:
>>>>>>>
>>>>>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
>>>>>>>> https:/
>>>>>>>>
>>>>>>>> Status: Open => Answered
>>>>>>>>
>>>>>>>> Olivier Mattelaer proposed the following answer:
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> Since you do not provide any details on what you are trying to do. I
>>>> do
>>>>>>>> not have any idea of what the problem is.
>>>>>>>>
>>>>>>>> So for speed point of view, you should try the following FAQ:
>>>>>>>> https:/
>>>>>>>>
>>>>>>>> For the low number of event, this typically means either a
>> integration
>>>>>>>> issue (due to too strong cut?) and/or a a divergency of the matrix-
>>>>>>>> element which is not cut by the cut (i.e. too soft cut)
>>>>>>>>
>>>>>>>> Cheers,
>>>>>>>>
>>>>>>>> Olivier
>>>>>>>>
>>>>>>>>
>>>>>>>>> On 5 Mar 2017, at 22:09, ahh <<email address hidden>
>>>
>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>> New question #526618 on MadGraph5_aMC@NLO:
>>>>>>>>> https:/
>>>>>>>>>
>>>>>>>>> Dear Author,
>>>>>>>>>
>>>>>>>>> I have a process with total cross section 1.00E-35 pb. MadGraph
>> takes
>>>>>>>> days to generate the events.
>>>>>>>>> I asked to generate 10K events but it generates only 9 events !!
>>>>>>>>>
>>>>>>>>> Is there any way to accelerate the calculation and get more events?
>>>>>>>>>
>>>>>>>>> Thanks
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> You received this question notification because you are an answer
>>>>>>>>> contact for MadGraph5_aMC@NLO.
>>>>>>>>
>>>>>>>> --
>>>>>>>> If this answers your question, please go to the following page to
>> let
>>>> us
>>>>>>>> know that it is solved:
>>>>>>>> https:/
>>>>>>>> confirm?answer_id=0
>>>>>>>>
>>>>>>>> If you still need help, you can reply to this email or go to the
>>>>>>>> following page to enter your feedback:
>>>>>>>> https:/
>>>>>>>>
>>>>>>>> You received this question notification because you asked the
>>>> question.
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>>
>>>>>>>
>>>>>>> Ahmed Hammad
>>>>>>> Research Assistant
>>>>>>> Center for Fundamental Physics
>>>>>>> Zewail City of Science and Technology
>>>>>>> Room : Physics centre ZC-2312
>>>>>>>
>>>>>>> Sheikh Zayed District
>>>>>>> Postal Code 12588
>>>>>>> 6th of October City
>>>>>>> Giza
>>>>>>>
>>>>>>> --
>>>>>>> You received this question notification because you are an answer
>>>>>>> contact for MadGraph5_aMC@NLO.
>>>>>>
>>>>>> --
>>>>>> If this answers your question, please go to the following page to let
>> us
>>>>>> know that it is solved:
>>>>>> https:/
>>>>>> confirm?answer_id=2
>>>>>>
>>>>>> If you still need help, you can reply to this email or go to the
>>>>>> following page to enter your feedback:
>>>>>> https:/
>>>>>>
>>>>>> You received this question notification because you asked the
>> question.
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>>
>>>>> Ahmed Hammad
>>>>> Research Assistant
>>>>> Center for Fundamental Physics
>>>>> Zewail City of Science and Technology
>>>>> Room : Physics centre ZC-2312
>>>>>
>>>>> Sheikh Zayed District
>>>>> Postal Code 12588
>>>>> 6th of October City
>>>>> Giza
>>>>>
>>>>> --
>>>>> You received this question notification because you are an answer
>>>>> contact for MadGraph5_aMC@NLO.
>>>>
>>>> --
>>>> If this answers your question, please go to the following page to let us
>>>> know that it is solved:
>>>> https:/
>>>> confirm?answer_id=4
>>>>
>>>> If you still need help, you can reply to this email or go to the
>>>> following page to enter your feedback:
>>>> https:/
>>>>
>>>> You received this question notification because you asked the question.
>>>>
>>>
>>>
>>> --
>>>
>>>
>>> Ahmed Hammad
>>> Research Assistant
>>> Center for Fundamental Physics
>>> Zewail City of Science and Technology
>>> Room : Physics centre ZC-2312
>>>
>>> Sheikh Zayed District
>>> Postal Code 12588
>>> 6th of October City
>>> Giza
>>>
>>> --
>>> You received this question notification because you are an answer
>>> contact for MadGraph5_aMC@NLO.
>>
>> --
>> If this answers your question, please go to the following page to let us
>> know that it is solved:
>> https:/
>> confirm?answer_id=6
>>
>> If you still need help, you can reply to this email or go to the
>> following page to enter your feedback:
>> https:/
>>
>> You received this question notification because you asked the question.
>>
>
>
> --
>
>
> Ahmed Hammad
> Research Assistant
> Center for Fundamental Physics
> Zewail City of Science and Technology
> Room : Physics centre ZC-2312
>
> Sheikh Zayed District
> Postal Code 12588
> 6th of October City
> Giza
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.
Many thanks,
Every thing is okay with the latest version, but please let me notify you
that in file bin/internal/
commented.
Many thanks
On Tue, Mar 7, 2017 at 10:57 PM, Olivier Mattelaer <
<email address hidden>> wrote:
> Your question #526618 on MadGraph5_aMC@NLO changed:
> https:/
>
> Status: Open => Answered
>
> Olivier Mattelaer proposed the following answer:
> Hi,
>
> You did not attach file (actually they are no way to attach file)
> But did you try to use the latest version of the code?
> I know that I already fixed such issue (it might be in the development
> version but I think that such fix is already released)
>
> Cheers,
>
> Olivier
>
> > On 7 Mar 2017, at 21:45, ahh <email address hidden>
> wrote:
> >
> > Question #526618 on MadGraph5_aMC@NLO changed:
> > https:/
> >
> > Status: Answered => Open
> >
> > ahh is still having a problem:
> > Hello Prof,
> > Sorry for asking a lot,
> > Indeed i revised my param_card.dat many times and i found it ideal and
> > every thing is defined !!
> > Here i attach it.
> >
> > Many thanks
> >
> > On Tue, Mar 7, 2017 at 3:32 PM, Olivier Mattelaer <
> > <email address hidden>> wrote:
> >
> >> Your question #526618 on MadGraph5_aMC@NLO changed:
> >> https:/
> >>
> >> Status: Open => Answered
> >>
> >> Olivier Mattelaer proposed the following answer:
> >> Hi,
> >>
> >> For this to work, you need to have ALL particle defined in your model to
> >> have a width in your param_card.dat
> >> Looks like you are missing some.
> >> (Likely also that you are using an old version of the code, since recent
> >> version should automatically add such value)
> >>
> >> Cheers,
> >>
> >> Olivier
> >>> On 7 Mar 2017, at 14:13, ahh <email address hidden>
> >> wrote:
> >>>
> >>> Question #526618 on MadGraph5_aMC@NLO changed:
> >>> https:/
> >>>
> >>> Status: Answered => Open
> >>>
> >>> ahh is still having a problem:
> >>> Hello Prof,
> >>>
> >>> Thanks a lot for your help, indeed helps.
> >>>
> >>> but during the mad event command i got the following error :
> >>> Command "add_time_of_flight run_01 --threshold=100" interrupted with
> >> error:
> >>> KeyError : 'id (2,) is not in decay'
> >>>
> >>> As well i attach the log file.
> >>>
> >>> Thank you in advance
> >>>
> >>> On Mon, Mar 6, 2017 at 3:53 PM, Olivier Mattelaer <
> >>> <email address hidden>> wrote:
> >>>
> >>>> Your question #526618 on MadGraph5_aMC@NLO changed:
> >>>> https:/
> >>>>
> >>>> Status: Open => Answered
> >>>>
> >>>> Olivier Mattelaer proposed the following answer:
> >>>> Hi,
> >>>>
> >>>> The displace vertex treatment at this level is actually very basic.
> >>>> (It is just a function of the width which predicts the “distance”)
> >>>> So the easiest is probably to do it yourself.
> >>>>
> >>>> Otherwise, what you can do is
> >>>> 1) generate with a width of 1e-8 (without asking for a displaced
> vertex)
> >>>> 2) modify by hand the lhe file and set the width to the value that you
> >>>> want.
> >>>> 3) run ./bin/madevent
> >>>> 4) type "add_time_of_flight run_01 —threshold=XX”
> >>>>
> >>>> Cheers,
> >>>>
> >>>> Olivier
> >>>>
> >>>>
> >>>>
> >>>>> On 6 Mar 2017, at 11:33, ahh <email address hidden>
> >>>> wrote:
> >>>>>
> >>>>> Question #526618 on MadGraph5_aMC@NLO changed:
> >>>>> https:/
> >>>>>
> >>>>> Status: Answered => Open
> >>>>>
> >>>>> ahh is still having a problem:
> >>>>> Iam looking for displaced vertex and 1e-8 will not be sufficient,
> aim
> >>>> not
> >>>>> so curios about the cross section but the total width. is there any
> way
> >>>> to
> >>>>> correct the total width if i set it to 1e-8 ?
> >>>>>
> >>>>> Thanks in advance for you help
> >>>>>
> >>>>> On Mon, Mar 6, 2017 at 11:58 AM, Olivier Mattelaer <
> >>>>> <email address hidden>> wrote:
> >>>>>
> >>>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
> >>>>>> https:/
> >>>>>>
> >>>>>> Status: Open => Answered
> >>>>>>
> >>>>>> Olivier Mattelaer proposed the following answer:
> >>>>>> Hi,
> >>>>>>
> >>>>>> I would advise to increase the width to a much bigger value.
> Something
> >>>> of
> >>>>>> the order of the mass times 1e-8.
> >>>>>> This will obviously impact your cross-section, but you can use the
> >>>> Narrow
> >>>>>> width approximation to correct for this effect.
> >>>>>>
> >>>>>> You technically also have some change in the s2 invariant mass but
> the
> >>>>>> width that you are going to use is anyway too small for such effect
> to
> >>>>>> matter.
> >>>>>>
> >>>>>> Cheers,
> >>>>>>
> >>>>>> Olivier
> >>>>>>
> >>>>>>
> >>>>>>> On 5 Mar 2017, at 23:18, ahh <<email address hidden>
> >
> >>>>>> wrote:
> >>>>>>>
> >>>>>>> Question #526618 on MadGraph5_aMC@NLO changed:
> >>>>>>> https:/
> >>>>>>>
> >>>>>>> Status: Answered => Open
> >>>>>>>
> >>>>>>> ahh is still having a problem:
> >>>>>>> Dear prof,
> >>>>>>>
> >>>>>>>
> >>>>>>> I have generated the following process by using Madgraph for a
> >> certain
> >>>>>>> extension of the SM:
> >>>>>>>
> >>>>>>> generate p p > zp, (zp > s1 s2, s2 > s1 z, z > l+ l-)
> >>>>>>>
> >>>>>>> After that I have tried to generate 10000 events for this process
> but
> >>>>>> this
> >>>>>>> takes long time (couple of days). I think this because the total
> >> decay
> >>>>>>> width of s2 is very small (~10^-29 GeV). Is it right? If yes, could
> >> you
> >>>>>>> please tell me how I can overcome this problem
> >>>>>>>
> >>>>>>> Thank you,
> >>>>>>>
> >>>>>>> On Sun, Mar 5, 2017 at 11:18 PM, Olivier Mattelaer <
> >>>>>>> <email address hidden>> wrote:
> >>>>>>>
> >>>>>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
> >>>>>>>> https:/
> >>>>>>>>
> >>>>>>>> Status: Open => Answered
> >>>>>>>>
> >>>>>>>> Olivier Mattelaer proposed the following answer:
> >>>>>>>> Hi,
> >>>>>>>>
> >>>>>>>> Since you do not provide any details on what you are trying to
> do. I
> >>>> do
> >>>>>>>> not have any idea of what the problem is.
> >>>>>>>>
> >>>>>>>> So for speed point of view, you should try the following FAQ:
> >>>>>>>> https:/
> >>>>>>>>
> >>>>>>>> For the low number of event, this typically means either a
> >> integration
> >>>>>>>> issue (due to too strong cut?) and/or a a divergency of the
> matrix-
> >>>>>>>> element which is not cut by the cut (i.e. too soft cut)
> >>>>>>>>
> >>>>>>>> Cheers,
> >>>>>>>>
> >>>>>>>> Olivier
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>> On 5 Mar 2017, at 22:09, ahh <question526618
> launchpad.net
> >>>
> >>>>>>>> wrote:
> >>>>>>>>>
> >>>>>>>>> New question #526618 on MadGraph5_aMC@NLO:
> >>>>>>>>> https:/
> >>>>>>>>>
> >>>>>>>>> Dear Author,
> >>>>>>>>>
> >>>>>>>>> I have a process with total cross section 1.00E-35 pb. MadGraph
> >> takes
> >>>>>>>> days to generate the events.
> >>>>>>>>> I asked to generate 10K events but it generates only 9 events !!
> >>>>>>>>>
> >>>>>>>>> Is there any way to accelerate the calculation and get more
> events?
> >>>>>>>>>
> >>>>>>>>> Thanks
> >>>>>>>>>
> >>>>>>>>> --
> >>>>>>>>> You received this question notification because you are an answer
> >>>>>>>>> contact for MadGraph5_aMC@NLO.
> >>>>>>>>
> >>>>>>>> --
> >>>>>>>> If this answers your question, please go to the following page to
> >> let
> >>>> us
> >>>>>>>> know that it is solved:
> >>>>>>>> https:/
> >>>>>>>> confirm?answer_id=0
> >>>>>>>>
> >>>>>>>> If you still need help, you can reply to this email or go to the
> >>>>>>>> following page to enter your feedback:
> >>>>>>>> https:/
> >>>>>>>>
> >>>>>>>> You received this question notification because you asked the
> >>>> question.
> >>>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>> --
> >>>>>>>
> >>>>>>>
> >>>>>>> Ahmed Hammad
> >>>>>>> Research Assistant
> >>>>>>> Center for Fundamental Physics
> >>>>>>> Zewail City of Science and Technology
> >>>>>>> Room : Physics centre ZC-2312
> >>>>>>>
> >>>>>>> Sheikh Zayed District
> >>>>>>> Postal Code 12588
> >>>>>>> 6th of October City
> >>>>>>> Giza
> >>>>>>>
> >>>>>>> --
> >>>>>>> You received this question notification because you are an answer
> >>>>>>> contact for MadGraph5_aMC@NLO.
> >>>>>>
> >>>>>> --
> >>>>>> If this answers your question, please go to the following page to
> let
> >> us
> >>>>>> know that it is solved:
> >>>>>> https:/
> >>>>>> confirm?answer_id=2
> >>>>>>
> >>>>>> If you still need help, you can reply to this email or go to the
> >>>>>> following page to enter your feedback:
> >>>>>> https:/
> >>>>>>
> >>>>>> You received this question notification because you asked the
> >> question.
> >>>>>>
> >>>>>
> >>>>>
> >>>>> --
> >>>>>
> >>>>>
> >>>>> Ahmed Hammad
> >>>>> Research Assistant
> >>>>> Center for Fundamental Physics
> >>>>> Zewail City of Science and Technology
> >>>>> Room : Physics centre ZC-2312
> >>>>>
> >>>>> Sheikh Zayed District
> >>>>> Postal Code 12588
> >>>>> 6th of October City
> >>>>> Giza
> >>>>>
> >>>>> --
> >>>>> You received this question notification because you are an answer
> >>>>> contact for MadGraph5_aMC@NLO.
> >>>>
> >>>> --
> >>>> If this answers your question, please go to the following page to let
> us
> >>>> know that it is solved:
> >>>> https:/
> >>>> confirm?answer_id=4
> >>>>
> >>>> If you still need help, you can reply to this email or go to the
> >>>> following page to enter your feedback:
> >>>> https:/
> >>>>
> >>>> You received this question notification because you asked the
> question.
> >>>>
> >>>
> >>>
> >>> --
> >>>
> >>>
> >>> Ahmed Hammad
> >>> Research Assistant
> >>> Center for Fundamental Physics
> >>> Zewail City of Science and Technology
> >>> Room : Physics centre ZC-2312
> >>>
> >>> Sheikh Zayed District
> >>> Postal Code 12588
> >>> 6th of October City
> >>> Giza
> >>>
> >>> --
> >>> You received this question notification because you are an answer
> >>> contact for MadGraph5_aMC@NLO.
> >>
> >> --
> >> If this answers your question, please go to the following page to let us
> >> know that it is solved:
> >> https:/
> >> confirm?answer_id=6
> >>
> >> If you still need help, you can reply to this email or go to the
> >> following page to enter your feedback:
> >> https:/
> >>
> >> You received this question notification because you asked the question.
> >>
> >
> >
> > --
> >
> >
> > Ahmed Hammad
> > Research Assistant
> > Center for Fundamental Physics
> > Zewail City of Science and Technology
> > Room : Physics centre ZC-2312
> >
> > Sheikh Zayed District
> > Postal Code 12588
> > 6th of October City
> > Giza
> >
> > --
> > You received this question notification because you are an answer
> > contact for MadGraph5_aMC@NLO.
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https:/
> confirm?answer_id=8
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https:/
>
> You received this question notification because you asked the question.
>
--
Ahmed Hammad
Research Assistant
Center for Fundamental Physics
Zewail City of Science and Technology
Room : Physics centre ZC-2312
Sheikh Zayed District
Postal Code 12588
6th of October City
Giza
Dear prof Olivier,
Iam want to study the kinematic of the Higgs boson at rest frame and i want
to do this in MadGraph.
thus i consider only the gluon gluon fusion and i turned off the pdf
function as well i set the centre of mass energy to be = 125 GeV.
i entered the process as generate g g > h , h > all its decay channels
Does this sufficient ?
Many thanks
On Fri, Mar 10, 2017 at 1:57 AM, ahh <email address hidden>
wrote:
> Your question #526618 on MadGraph5_aMC@NLO changed:
> https:/
>
> Status: Answered => Open
>
> You are still having a problem:
> Many thanks,
> Every thing is okay with the latest version, but please let me notify you
> that in file bin/internal/
> commented.
>
> Many thanks
>
> On Tue, Mar 7, 2017 at 10:57 PM, Olivier Mattelaer <
> <email address hidden>> wrote:
>
> > Your question #526618 on MadGraph5_aMC@NLO changed:
> > https:/
> >
> > Status: Open => Answered
> >
> > Olivier Mattelaer proposed the following answer:
> > Hi,
> >
> > You did not attach file (actually they are no way to attach file)
> > But did you try to use the latest version of the code?
> > I know that I already fixed such issue (it might be in the development
> > version but I think that such fix is already released)
> >
> > Cheers,
> >
> > Olivier
> >
> > > On 7 Mar 2017, at 21:45, ahh <email address hidden>
> > wrote:
> > >
> > > Question #526618 on MadGraph5_aMC@NLO changed:
> > > https:/
> > >
> > > Status: Answered => Open
> > >
> > > ahh is still having a problem:
> > > Hello Prof,
> > > Sorry for asking a lot,
> > > Indeed i revised my param_card.dat many times and i found it ideal and
> > > every thing is defined !!
> > > Here i attach it.
> > >
> > > Many thanks
> > >
> > > On Tue, Mar 7, 2017 at 3:32 PM, Olivier Mattelaer <
> > > <email address hidden>> wrote:
> > >
> > >> Your question #526618 on MadGraph5_aMC@NLO changed:
> > >> https:/
> > >>
> > >> Status: Open => Answered
> > >>
> > >> Olivier Mattelaer proposed the following answer:
> > >> Hi,
> > >>
> > >> For this to work, you need to have ALL particle defined in your model
> to
> > >> have a width in your param_card.dat
> > >> Looks like you are missing some.
> > >> (Likely also that you are using an old version of the code, since
> recent
> > >> version should automatically add such value)
> > >>
> > >> Cheers,
> > >>
> > >> Olivier
> > >>> On 7 Mar 2017, at 14:13, ahh <email address hidden>
> > >> wrote:
> > >>>
> > >>> Question #526618 on MadGraph5_aMC@NLO changed:
> > >>> https:/
> > >>>
> > >>> Status: Answered => Open
> > >>>
> > >>> ahh is still having a problem:
> > >>> Hello Prof,
> > >>>
> > >>> Thanks a lot for your help, indeed helps.
> > >>>
> > >>> but during the mad event command i got the following error :
> > >>> Command "add_time_of_flight run_01 --threshold=100" interrupted with
> > >> error:
> > >>> KeyError : 'id (2,) is not in decay'
> > >>>
> > >>> As well i attach the log file.
> > >>>
> > >>> Thank you in advance
> > >>>
> > >>> On Mon, Mar 6, 2017 at 3:53 PM, Olivier Mattelaer <
> > >>> <email address hidden>> wrote:
> > >>>
> > >>>> Your question #526618 on MadGraph5_aMC@NLO changed:
> > >>>> https:/
> > >>>>
> > >>>> Status: Open => Answered
> > >>>>
> > >>>> Olivier Mattelaer proposed the following answer:
> > >>>> Hi,
> > >>>>
> > >>>> The displace vertex treatment at this level is actually very basic.
> > >>>> (It is just a function of the width which predicts the “distance”)
> > >>>> So the easiest is probably to do it yourself.
> > >>>>
> > >>>> Otherwise, what you can do is
> > >>>> 1) generate with a width of 1e-8 (without asking for a displaced
> > vertex)
> > >>>> 2) modify by hand the lhe file and set the width to the value that
> you
> > >>>> want.
> > >>>> 3) run ./bin/madevent
> > >>>> 4) type "add_time_of_flight run_01 —threshold=XX”
> > >>>>
> > >>>> Cheers,
> > >>>>
> > >>>> Olivier
> > >>>>
> > >>>>
> > >>>>
> > >>>>> On 6 Mar 2017, at 11:33, ahh <<email address hidden>
> >
> > >>>> wrote:
> > >>>>>
> > >>>>> Question #526618 on MadGraph5_aMC@NLO changed:
> > >>>>> https:/
> > >>>>>
> > >>>>> Status: Answered => Open
> > >>>>>
> > >>>>> ahh is still having a problem:
> > >>>>> Iam looking for displaced vertex and 1e-8 will not be sufficient,
> > aim
> > >>>> not
> > >>>>> so curios about the cross section but the total width. is there any
> > way
> > >>>> to
> > >>>>> correct the total width if i set it to 1e-8 ?
> > >>>>>
> > >>>>> Thanks in advance for you help
> > >>>>>
> > >>>>> On Mon, Mar 6, 2017 at 11:58 AM, Olivier Mattelaer <
> > >>>>> <email address hidden>> wrote:
> > >>>>>
> > >>>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
> > >>>>>> https:/
> > >>>>>>
> > >>>>>> Status: Open => Answered
> > >>>>>>
> > >>>>>> Olivier Mattelaer proposed the following answer:
> > >>>>>> Hi,
> > >>>>>>
> > >>>>>> I would advise to increase the width to a much bigger value.
> > Something
> > >>>> of
> > >>>>>> the order of the mass times 1e-8.
> > >>>>>> This will obviously impact your cross-section, but you can use the
> > >>>> Narrow
> > >>>>>> width approximation to correct for this effect.
> > >>>>>>
> > >>>>>> You technically also have some change in the s2 invariant mass but
> > the
> > >>>>>> width that you are going to use is anyway too small for such
> effect
> > to
> > >>>>>> matter.
> > >>>>>>
> > >>>>>> Cheers,
> > >>>>>>
> > >>>>>> Olivier
> > >>>>>>
> > >>>>>>
> > >>>>>>> On 5 Mar 2017, at 23:18, ahh <question526618
> launchpad.net
> > >
> > >>>>>> wrote:
> > >>>>>>>
> > >>>>>>> Question #526618 on MadGraph5_aMC@NLO changed:
> > >>>>>>> https:/
> > >>>>>>>
> > >>>>>>> Status: Answered => Open
> > >>>>>>>
> > >>>>>>> ahh is still having a problem:
> > >>>>>>> Dear prof,
> > >>>>>>>
> > >>>>>>>
> > >>>>>>> I have generated the following process by using Madgraph for a
> > >> certain
> > >>>>>>> extension of the SM:
> > >>>>>>>
> > >>>>>>> generate p p > zp, (zp > s1 s2, s2 > s1 z, z > l+ l-)
> > >>>>>>>
> > >>>>>>> After that I have tried to generate 10000 events for this process
> > but
> > >>>>>> this
> > >>>>>>> takes long time (couple of days). I think this because the total
> > >> decay
> > >>>>>>> width of s2 is very small (~10^-29 GeV). Is it right? If yes,
> could
> > >> you
> > >>>>>>> please tell me how I can overcome this problem
> > >>>>>>>
> > >>>>>>> Thank you,
> > >>>>>>>
> > >>>>>>> On Sun, Mar 5, 2017 at 11:18 PM, Olivier Mattelaer <
> > >>>>>>> <email address hidden>> wrote:
> > >>>>>>>
> > >>>>>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
> > >>>>>>>> https:/
> > >>>>>>>>
> > >>>>>>>> Status: Open => Answered
> > >>>>>>>>
> > >>>>>>>> Olivier Mattelaer proposed the following answer:
> > >>>>>>>> Hi,
> > >>>>>>>>
> > >>>>>>>> Since you do not provide any details on what you are trying to
> > do. I
> > >>>> do
> > >>>>>>>> not have any idea of what the problem is.
> > >>>>>>>>
> > >>>>>>>> So for speed point of view, you should try the following FAQ:
> > >>>>>>>> https:/
> > >>>>>>>>
> > >>>>>>>> For the low number of event, this typically means either a
> > >> integration
> > >>>>>>>> issue (due to too strong cut?) and/or a a divergency of the
> > matrix-
> > >>>>>>>> element which is not cut by the cut (i.e. too soft cut)
> > >>>>>>>>
> > >>>>>>>> Cheers,
> > >>>>>>>>
> > >>>>>>>> Olivier
> > >>>>>>>>
> > >>>>>>>>
> > >>>>>>>>> On 5 Mar 2017, at 22:09, ahh <question526618
> > launchpad.net
> > >>>
> > >>>>>>>> wrote:
> > >>>>>>>>>
> > >>>>>>>>> New question #526618 on MadGraph5_aMC@NLO:
> > >>>>>>>>> https:/
> > >>>>>>>>>
> > >>>>>>>>> Dear Author,
> > >>>>>>>>>
> > >>>>>>>>> I have a process with total cross section 1.00E-35 pb. MadGraph
> > >> takes
> > >>>>>>>> days to generate the events.
> > >>>>>>>>> I asked to generate 10K events but it generates only 9 events
> !!
> > >>>>>>>>>
> > >>>>>>>>> Is there any way to accelerate the calculation and get more
> > events?
> > >>>>>>>>>
> > >>>>>>>>> Thanks
> > >>>>>>>>>
> > >>>>>>>>> --
> > >>>>>>>>> You received this question notification because you are an
> answer
> > >>>>>>>>> contact for MadGraph5_aMC@NLO.
> > >>>>>>>>
> > >>>>>>>> --
> > >>>>>>>> If this answers your question, please go to the following page
> to
> > >> let
> > >>>> us
> > >>>>>>>> know that it is solved:
> > >>>>>>>> https:/
> > >>>>>>>> confirm?answer_id=0
> > >>>>>>>>
> > >>>>>>>> If you still need help, you can reply to this email or go to the
> > >>>>>>>> following page to enter your feedback:
> > >>>>>>>> https:/
> > >>>>>>>>
> > >>>>>>>> You received this question notification because you asked the
> > >>>> question.
> > >>>>>>>>
> > >>>>>>>
> > >>>>>>>
> > >>>>>>> --
> > >>>>>>>
> > >>>>>>>
> > >>>>>>> Ahmed Hammad
> > >>>>>>> Research Assistant
> > >>>>>>> Center for Fundamental Physics
> > >>>>>>> Zewail City of Science and Technology
> > >>>>>>> Room : Physics centre ZC-2312
> > >>>>>>>
> > >>>>>>> Sheikh Zayed District
> > >>>>>>> Postal Code 12588
> > >>>>>>> 6th of October City
> > >>>>>>> Giza
> > >>>>>>>
> > >>>>>>> --
> > >>>>>>> You received this question notification because you are an answer
> > >>>>>>> contact for MadGraph5_aMC@NLO.
> > >>>>>>
> > >>>>>> --
> > >>>>>> If this answers your question, please go to the following page to
> > let
> > >> us
> > >>>>>> know that it is solved:
> > >>>>>> https:/
> > >>>>>> confirm?answer_id=2
> > >>>>>>
> > >>>>>> If you still need help, you can reply to this email or go to the
> > >>>>>> following page to enter your feedback:
> > >>>>>> https:/
> > >>>>>>
> > >>>>>> You received this question notification because you asked the
> > >> question.
> > >>>>>>
> > >>>>>
> > >>>>>
> > >>>>> --
> > >>>>>
> > >>>>>
> > >>>>> Ahmed Hammad
> > >>>>> Research Assistant
> > >>>>> Center for Fundamental Physics
> > >>>>> Zewail City of Science and Technology
> > >>>>> Room : Physics centre ZC-2312
> > >>>>>
> > >>>>> Sheikh Zayed District
> > >>>>> Postal Code 12588
> > >>>>> 6th of October City
> > >>>>> Giza
> > >>>>>
> > >>>>> --
> > >>>>> You received this question notification because you are an answer
> > >>>>> contact for MadGraph5_aMC@NLO.
> > >>>>
> > >>>> --
> > >>>> If this answers your question, please go to the following page to
> let
> > us
> > >>>> know that it is solved:
> > >>>> https:/
> > >>>> confirm?answer_id=4
> > >>>>
> > >>>> If you still need help, you can reply to this email or go to the
> > >>>> following page to enter your feedback:
> > >>>> https:/
> > >>>>
> > >>>> You received this question notification because you asked the
> > question.
> > >>>>
> > >>>
> > >>>
> > >>> --
> > >>>
> > >>>
> > >>> Ahmed Hammad
> > >>> Research Assistant
> > >>> Center for Fundamental Physics
> > >>> Zewail City of Science and Technology
> > >>> Room : Physics centre ZC-2312
> > >>>
> > >>> Sheikh Zayed District
> > >>> Postal Code 12588
> > >>> 6th of October City
> > >>> Giza
> > >>>
> > >>> --
> > >>> You received this question notification because you are an answer
> > >>> contact for MadGraph5_aMC@NLO.
> > >>
> > >> --
> > >> If this answers your question, please go to the following page to let
> us
> > >> know that it is solved:
> > >> https:/
> > >> confirm?answer_id=6
> > >>
> > >> If you still need help, you can reply to this email or go to the
> > >> following page to enter your feedback:
> > >> https:/
> > >>
> > >> You received this question notification because you asked the
> question.
> > >>
> > >
> > >
> > > --
> > >
> > >
> > > Ahmed Hammad
> > > Research Assistant
> > > Center for Fundamental Physics
> > > Zewail City of Science and Technology
> > > Room : Physics centre ZC-2312
> > >
> > > Sheikh Zayed District
> > > Postal Code 12588
> > > 6th of October City
> > > Giza
> > >
> > > --
> > > You received this question notification because you are an answer
> > > contact for MadGraph5_aMC@NLO.
> >
> > --
> > If this answers your question, please go to the following page to let us
> > know that it is solved:
> > https:/
> > confirm?answer_id=8
> >
> > If you still need help, you can reply to this email or go to the
> > following page to enter your feedback:
> > https:/
> >
> > You received this question notification because you asked the question.
> >
>
>
> --
>
>
> Ahmed Hammad
> Research Assistant
> Center for Fundamental Physics
> Zewail City of Science and Technology
> Room : Physics centre ZC-2312
>
> Sheikh Zayed District
> Postal Code 12588
> 6th of October City
> Giza
>
> --
> You received this question notification because you asked the question.
>
--
Ahmed Hammad
Research Assistant
Center for Fundamental Physics
Zewail City of Science and Technology
Room : Physics centre ZC-2312
Sheikh Zayed District
Postal Code 12588
6th of October City
Giza
|
Revision history for this message
|
#12 |
Hi,
It would be more efficient to do
generate h > all all
Cheers,
Olivier
> On 18 Mar 2017, at 19:09, ahh <email address hidden> wrote:
>
> Question #526618 on MadGraph5_aMC@NLO changed:
> https:/
>
> ahh gave more information on the question:
> Dear prof Olivier,
> Iam want to study the kinematic of the Higgs boson at rest frame and i want
> to do this in MadGraph.
> thus i consider only the gluon gluon fusion and i turned off the pdf
> function as well i set the centre of mass energy to be = 125 GeV.
> i entered the process as generate g g > h , h > all its decay channels
> Does this sufficient ?
>
> Many thanks
>
>
> On Fri, Mar 10, 2017 at 1:57 AM, ahh <email address hidden>
> wrote:
>
>> Your question #526618 on MadGraph5_aMC@NLO changed:
>> https:/
>>
>> Status: Answered => Open
>>
>> You are still having a problem:
>> Many thanks,
>> Every thing is okay with the latest version, but please let me notify you
>> that in file bin/internal/
>> commented.
>>
>> Many thanks
>>
>> On Tue, Mar 7, 2017 at 10:57 PM, Olivier Mattelaer <
>> <email address hidden>> wrote:
>>
>>> Your question #526618 on MadGraph5_aMC@NLO changed:
>>> https:/
>>>
>>> Status: Open => Answered
>>>
>>> Olivier Mattelaer proposed the following answer:
>>> Hi,
>>>
>>> You did not attach file (actually they are no way to attach file)
>>> But did you try to use the latest version of the code?
>>> I know that I already fixed such issue (it might be in the development
>>> version but I think that such fix is already released)
>>>
>>> Cheers,
>>>
>>> Olivier
>>>
>>>> On 7 Mar 2017, at 21:45, ahh <email address hidden>
>>> wrote:
>>>>
>>>> Question #526618 on MadGraph5_aMC@NLO changed:
>>>> https:/
>>>>
>>>> Status: Answered => Open
>>>>
>>>> ahh is still having a problem:
>>>> Hello Prof,
>>>> Sorry for asking a lot,
>>>> Indeed i revised my param_card.dat many times and i found it ideal and
>>>> every thing is defined !!
>>>> Here i attach it.
>>>>
>>>> Many thanks
>>>>
>>>> On Tue, Mar 7, 2017 at 3:32 PM, Olivier Mattelaer <
>>>> <email address hidden>> wrote:
>>>>
>>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
>>>>> https:/
>>>>>
>>>>> Status: Open => Answered
>>>>>
>>>>> Olivier Mattelaer proposed the following answer:
>>>>> Hi,
>>>>>
>>>>> For this to work, you need to have ALL particle defined in your model
>> to
>>>>> have a width in your param_card.dat
>>>>> Looks like you are missing some.
>>>>> (Likely also that you are using an old version of the code, since
>> recent
>>>>> version should automatically add such value)
>>>>>
>>>>> Cheers,
>>>>>
>>>>> Olivier
>>>>>> On 7 Mar 2017, at 14:13, ahh <email address hidden>
>>>>> wrote:
>>>>>>
>>>>>> Question #526618 on MadGraph5_aMC@NLO changed:
>>>>>> https:/
>>>>>>
>>>>>> Status: Answered => Open
>>>>>>
>>>>>> ahh is still having a problem:
>>>>>> Hello Prof,
>>>>>>
>>>>>> Thanks a lot for your help, indeed helps.
>>>>>>
>>>>>> but during the mad event command i got the following error :
>>>>>> Command "add_time_of_flight run_01 --threshold=100" interrupted with
>>>>> error:
>>>>>> KeyError : 'id (2,) is not in decay'
>>>>>>
>>>>>> As well i attach the log file.
>>>>>>
>>>>>> Thank you in advance
>>>>>>
>>>>>> On Mon, Mar 6, 2017 at 3:53 PM, Olivier Mattelaer <
>>>>>> <email address hidden>> wrote:
>>>>>>
>>>>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
>>>>>>> https:/
>>>>>>>
>>>>>>> Status: Open => Answered
>>>>>>>
>>>>>>> Olivier Mattelaer proposed the following answer:
>>>>>>> Hi,
>>>>>>>
>>>>>>> The displace vertex treatment at this level is actually very basic.
>>>>>>> (It is just a function of the width which predicts the “distance”)
>>>>>>> So the easiest is probably to do it yourself.
>>>>>>>
>>>>>>> Otherwise, what you can do is
>>>>>>> 1) generate with a width of 1e-8 (without asking for a displaced
>>> vertex)
>>>>>>> 2) modify by hand the lhe file and set the width to the value that
>> you
>>>>>>> want.
>>>>>>> 3) run ./bin/madevent
>>>>>>> 4) type "add_time_of_flight run_01 —threshold=XX”
>>>>>>>
>>>>>>> Cheers,
>>>>>>>
>>>>>>> Olivier
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> On 6 Mar 2017, at 11:33, ahh <<email address hidden>
>>>
>>>>>>> wrote:
>>>>>>>>
>>>>>>>> Question #526618 on MadGraph5_aMC@NLO changed:
>>>>>>>> https:/
>>>>>>>>
>>>>>>>> Status: Answered => Open
>>>>>>>>
>>>>>>>> ahh is still having a problem:
>>>>>>>> Iam looking for displaced vertex and 1e-8 will not be sufficient,
>>> aim
>>>>>>> not
>>>>>>>> so curios about the cross section but the total width. is there any
>>> way
>>>>>>> to
>>>>>>>> correct the total width if i set it to 1e-8 ?
>>>>>>>>
>>>>>>>> Thanks in advance for you help
>>>>>>>>
>>>>>>>> On Mon, Mar 6, 2017 at 11:58 AM, Olivier Mattelaer <
>>>>>>>> <email address hidden>> wrote:
>>>>>>>>
>>>>>>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
>>>>>>>>> https:/
>>>>>>>>>
>>>>>>>>> Status: Open => Answered
>>>>>>>>>
>>>>>>>>> Olivier Mattelaer proposed the following answer:
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> I would advise to increase the width to a much bigger value.
>>> Something
>>>>>>> of
>>>>>>>>> the order of the mass times 1e-8.
>>>>>>>>> This will obviously impact your cross-section, but you can use the
>>>>>>> Narrow
>>>>>>>>> width approximation to correct for this effect.
>>>>>>>>>
>>>>>>>>> You technically also have some change in the s2 invariant mass but
>>> the
>>>>>>>>> width that you are going to use is anyway too small for such
>> effect
>>> to
>>>>>>>>> matter.
>>>>>>>>>
>>>>>>>>> Cheers,
>>>>>>>>>
>>>>>>>>> Olivier
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>> On 5 Mar 2017, at 23:18, ahh <question526618
>> launchpad.net
>>>>
>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>> Question #526618 on MadGraph5_aMC@NLO changed:
>>>>>>>>>> https:/
>>>>>>>>>>
>>>>>>>>>> Status: Answered => Open
>>>>>>>>>>
>>>>>>>>>> ahh is still having a problem:
>>>>>>>>>> Dear prof,
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> I have generated the following process by using Madgraph for a
>>>>> certain
>>>>>>>>>> extension of the SM:
>>>>>>>>>>
>>>>>>>>>> generate p p > zp, (zp > s1 s2, s2 > s1 z, z > l+ l-)
>>>>>>>>>>
>>>>>>>>>> After that I have tried to generate 10000 events for this process
>>> but
>>>>>>>>> this
>>>>>>>>>> takes long time (couple of days). I think this because the total
>>>>> decay
>>>>>>>>>> width of s2 is very small (~10^-29 GeV). Is it right? If yes,
>> could
>>>>> you
>>>>>>>>>> please tell me how I can overcome this problem
>>>>>>>>>>
>>>>>>>>>> Thank you,
>>>>>>>>>>
>>>>>>>>>> On Sun, Mar 5, 2017 at 11:18 PM, Olivier Mattelaer <
>>>>>>>>>> <email address hidden>> wrote:
>>>>>>>>>>
>>>>>>>>>>> Your question #526618 on MadGraph5_aMC@NLO changed:
>>>>>>>>>>> https:/
>>>>>>>>>>>
>>>>>>>>>>> Status: Open => Answered
>>>>>>>>>>>
>>>>>>>>>>> Olivier Mattelaer proposed the following answer:
>>>>>>>>>>> Hi,
>>>>>>>>>>>
>>>>>>>>>>> Since you do not provide any details on what you are trying to
>>> do. I
>>>>>>> do
>>>>>>>>>>> not have any idea of what the problem is.
>>>>>>>>>>>
>>>>>>>>>>> So for speed point of view, you should try the following FAQ:
>>>>>>>>>>> https:/
>>>>>>>>>>>
>>>>>>>>>>> For the low number of event, this typically means either a
>>>>> integration
>>>>>>>>>>> issue (due to too strong cut?) and/or a a divergency of the
>>> matrix-
>>>>>>>>>>> element which is not cut by the cut (i.e. too soft cut)
>>>>>>>>>>>
>>>>>>>>>>> Cheers,
>>>>>>>>>>>
>>>>>>>>>>> Olivier
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>> On 5 Mar 2017, at 22:09, ahh <question526618
>>> launchpad.net
>>>>>>
>>>>>>>>>>> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> New question #526618 on MadGraph5_aMC@NLO:
>>>>>>>>>>>> https:/
>>>>>>>>>>>>
>>>>>>>>>>>> Dear Author,
>>>>>>>>>>>>
>>>>>>>>>>>> I have a process with total cross section 1.00E-35 pb. MadGraph
>>>>> takes
>>>>>>>>>>> days to generate the events.
>>>>>>>>>>>> I asked to generate 10K events but it generates only 9 events
>> !!
>>>>>>>>>>>>
>>>>>>>>>>>> Is there any way to accelerate the calculation and get more
>>> events?
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks
>>>>>>>>>>>>
>>>>>>>>>>>> --
>>>>>>>>>>>> You received this question notification because you are an
>> answer
>>>>>>>>>>>> contact for MadGraph5_aMC@NLO.
>>>>>>>>>>>
>>>>>>>>>>> --
>>>>>>>>>>> If this answers your question, please go to the following page
>> to
>>>>> let
>>>>>>> us
>>>>>>>>>>> know that it is solved:
>>>>>>>>>>> https:/
>>>>>>>>>>> confirm?answer_id=0
>>>>>>>>>>>
>>>>>>>>>>> If you still need help, you can reply to this email or go to the
>>>>>>>>>>> following page to enter your feedback:
>>>>>>>>>>> https:/
>>>>>>>>>>>
>>>>>>>>>>> You received this question notification because you asked the
>>>>>>> question.
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Ahmed Hammad
>>>>>>>>>> Research Assistant
>>>>>>>>>> Center for Fundamental Physics
>>>>>>>>>> Zewail City of Science and Technology
>>>>>>>>>> Room : Physics centre ZC-2312
>>>>>>>>>>
>>>>>>>>>> Sheikh Zayed District
>>>>>>>>>> Postal Code 12588
>>>>>>>>>> 6th of October City
>>>>>>>>>> Giza
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> You received this question notification because you are an answer
>>>>>>>>>> contact for MadGraph5_aMC@NLO.
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> If this answers your question, please go to the following page to
>>> let
>>>>> us
>>>>>>>>> know that it is solved:
>>>>>>>>> https:/
>>>>>>>>> confirm?answer_id=2
>>>>>>>>>
>>>>>>>>> If you still need help, you can reply to this email or go to the
>>>>>>>>> following page to enter your feedback:
>>>>>>>>> https:/
>>>>>>>>>
>>>>>>>>> You received this question notification because you asked the
>>>>> question.
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>>
>>>>>>>>
>>>>>>>> Ahmed Hammad
>>>>>>>> Research Assistant
>>>>>>>> Center for Fundamental Physics
>>>>>>>> Zewail City of Science and Technology
>>>>>>>> Room : Physics centre ZC-2312
>>>>>>>>
>>>>>>>> Sheikh Zayed District
>>>>>>>> Postal Code 12588
>>>>>>>> 6th of October City
>>>>>>>> Giza
>>>>>>>>
>>>>>>>> --
>>>>>>>> You received this question notification because you are an answer
>>>>>>>> contact for MadGraph5_aMC@NLO.
>>>>>>>
>>>>>>> --
>>>>>>> If this answers your question, please go to the following page to
>> let
>>> us
>>>>>>> know that it is solved:
>>>>>>> https:/
>>>>>>> confirm?answer_id=4
>>>>>>>
>>>>>>> If you still need help, you can reply to this email or go to the
>>>>>>> following page to enter your feedback:
>>>>>>> https:/
>>>>>>>
>>>>>>> You received this question notification because you asked the
>>> question.
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>>
>>>>>>
>>>>>> Ahmed Hammad
>>>>>> Research Assistant
>>>>>> Center for Fundamental Physics
>>>>>> Zewail City of Science and Technology
>>>>>> Room : Physics centre ZC-2312
>>>>>>
>>>>>> Sheikh Zayed District
>>>>>> Postal Code 12588
>>>>>> 6th of October City
>>>>>> Giza
>>>>>>
>>>>>> --
>>>>>> You received this question notification because you are an answer
>>>>>> contact for MadGraph5_aMC@NLO.
>>>>>
>>>>> --
>>>>> If this answers your question, please go to the following page to let
>> us
>>>>> know that it is solved:
>>>>> https:/
>>>>> confirm?answer_id=6
>>>>>
>>>>> If you still need help, you can reply to this email or go to the
>>>>> following page to enter your feedback:
>>>>> https:/
>>>>>
>>>>> You received this question notification because you asked the
>> question.
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>>
>>>> Ahmed Hammad
>>>> Research Assistant
>>>> Center for Fundamental Physics
>>>> Zewail City of Science and Technology
>>>> Room : Physics centre ZC-2312
>>>>
>>>> Sheikh Zayed District
>>>> Postal Code 12588
>>>> 6th of October City
>>>> Giza
>>>>
>>>> --
>>>> You received this question notification because you are an answer
>>>> contact for MadGraph5_aMC@NLO.
>>>
>>> --
>>> If this answers your question, please go to the following page to let us
>>> know that it is solved:
>>> https:/
>>> confirm?answer_id=8
>>>
>>> If you still need help, you can reply to this email or go to the
>>> following page to enter your feedback:
>>> https:/
>>>
>>> You received this question notification because you asked the question.
>>>
>>
>>
>> --
>>
>>
>> Ahmed Hammad
>> Research Assistant
>> Center for Fundamental Physics
>> Zewail City of Science and Technology
>> Room : Physics centre ZC-2312
>>
>> Sheikh Zayed District
>> Postal Code 12588
>> 6th of October City
>> Giza
>>
>> --
>> You received this question notification because you asked the question.
>>
>
>
> --
>
>
> Ahmed Hammad
> Research Assistant
> Center for Fundamental Physics
> Zewail City of Science and Technology
> Room : Physics centre ZC-2312
>
> Sheikh Zayed District
> Postal Code 12588
> 6th of October City
> Giza
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.
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