Regarding applying different invariant mass cuts on jetpair in run_card.dat

Asked by shibasipu

Hi Olivier,
                       Suppose I have four jets in the final states. I want to apply different invariant mass cuts on different jet pair during event generation to reduce the background cross section. Is it possible ? As far I know, it is only possible to apply uniform cuts on different jet pair via following section.

#*********************************************************************
# Minimum and maximum invariant mass for pairs *
# WARNING: for four lepton final state mmll cut require to have *
# different lepton masses for each flavor! *
#*********************************************************************
 0.0 = mmjj ! min invariant mass of a jet pair
 0.0 = mmbb ! min invariant mass of a b pair
 0.0 = mmaa ! min invariant mass of gamma gamma pair
 0.0 = mmll ! min invariant mass of l+l- (same flavour) lepton pair
 -1.0 = mmjjmax ! max invariant mass of a jet pair
 -1.0 = mmbbmax ! max invariant mass of a b pair
 -1.0 = mmaamax ! max invariant mass of gamma gamma pair
 -1.0 = mmllmax ! max invariant mass of l+l- (same flavour) lepton pair
#*********************************************************************

Regards,
Shiba

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Olivier Mattelaer (olivier-mattelaer) said :
#1

Hi Shiba,

You need to code your own cuts in cuts.f for that. (or put such cut in your analysis)

Cheers,

Olivier
> On Nov 8, 2016, at 08:33, shibasipu <email address hidden> wrote:
>
> New question #403872 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/403872
>
> Hi Olivier,
> Suppose I have four jets in the final states. I want to apply different invariant mass cuts on different jet pair during event generation to reduce the background cross section. Is it possible ? As far I know, it is only possible to apply uniform cuts on different jet pair via following section.
>
> #*********************************************************************
> # Minimum and maximum invariant mass for pairs *
> # WARNING: for four lepton final state mmll cut require to have *
> # different lepton masses for each flavor! *
> #*********************************************************************
> 0.0 = mmjj ! min invariant mass of a jet pair
> 0.0 = mmbb ! min invariant mass of a b pair
> 0.0 = mmaa ! min invariant mass of gamma gamma pair
> 0.0 = mmll ! min invariant mass of l+l- (same flavour) lepton pair
> -1.0 = mmjjmax ! max invariant mass of a jet pair
> -1.0 = mmbbmax ! max invariant mass of a b pair
> -1.0 = mmaamax ! max invariant mass of gamma gamma pair
> -1.0 = mmllmax ! max invariant mass of l+l- (same flavour) lepton pair
> #*********************************************************************
>
>
>
> Regards,
> Shiba
>
>
>
> --
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