DelphesMA5tune

Hi Jyoti,
                >> What are the differences between Delphes and DelphesMA5tune.
               For this please have a look Section 2.2 of 1407.3278. Hope, it will help.

Regards,
Shiba

Hi Jyotiranjan,

Thanks Shiba for answering. I have a further question:

> I want to study without full detector simulation (upto fastjet stage)
> in expert mode. Which of the above would be needed for that purpose?
In this case, you only need fastjet and neither delphes nor delphesMA5tune. You can call it form ma5 by typing:
  set main.fastsim.package = fastjet
  set main.outputfile=new_file.lhe.gz
  import <yourfile.hep.gz>
  submit
To get the list of all avaiable options, use the tab key after 'set main.fastsim'.

> Is it correct that if I use Delphes, I need not bother about jet and lepton
> isolation, but if I use DelphesMA5tune, I have to do it in the code.
That's not correct. In both case you have to take care of that. A piece of it is however already done at the delphes level.

Cheers,

Benjamin

Hi Benjamin,

Thanks for answering. Thanks to Shiba also.

Regarding the isolation of leptons in this method, what are the
differences between sumPT and cone algorithm ? I also see that
the number of inputs in delphes level isolation are larger than this
approach. Could you please resolve this confusion.

regards,

Jyotiranjan

Hi, Jyotiranjan

SumPT will sum the PT of all tracks in a cone of a given size around the lepton. Then you can decide yourself which thresholds you want to impose (relatively to the lepton pt) at the analysis level.

Cheers,

Benjamin

On 19 Jul 2016, at 17:14 , Jyotiranjan <email address hidden> wrote:

> Question #297051 on MadAnalysis 5 changed:
> https://answers.launchpad.net/madanalysis5/+question/297051
>
> Status: Answered => Open
>
> Jyotiranjan is still having a problem:
> Hi Benjamin,
>
> Thanks for answering. Thanks to Shiba also.
>
> Regarding the isolation of leptons in this method, what are the
> differences between sumPT and cone algorithm ? I also see that
> the number of inputs in delphes level isolation are larger than this
> approach. Could you please resolve this confusion.
>
> regards,
>
> Jyotiranjan
>
> --
> You received this question notification because you are an answer
> contact for MadAnalysis 5.

Hi Jyotiranjan

SumPT will sum the PT of all tracks in a cone of a given size around the lepton. Then you can decide yourself which thresholds you want to impose (relatively to the lepton pt) at the analysis level.

Cheers,

Benjamin

On 19 Jul 2016, at 17:14 , Jyotiranjan <email address hidden> wrote:

> Question #297051 on MadAnalysis 5 changed:
> https://answers.launchpad.net/madanalysis5/+question/297051
>
> Status: Answered => Open
>
> Jyotiranjan is still having a problem:
> Hi Benjamin,
>
> Thanks for answering. Thanks to Shiba also.
>
> Regarding the isolation of leptons in this method, what are the
> differences between sumPT and cone algorithm ? I also see that
> the number of inputs in delphes level isolation are larger than this
> approach. Could you please resolve this confusion.
>
> regards,
>
> Jyotiranjan
>
> --
> You received this question notification because you are an answer
> contact for MadAnalysis 5.

Hi Benjamin,

Thanks for your comment. What file in MA5 directory does the isolation of leptons
when I use only fastjet as I had mentioned before ?

regards,

Jyotiranjan

Thanks Benjamin Fuks, that solved my question.