MadGraph5_aMC@NLO

pt selection applied to pair of charged leptons

Asked by Mamutjan

Hi,

I wanted to apply pt selection cuts on a process where final state has two charged leptons(one e+ and one mu-).
I know set pt will apply the cut on each of the charged leptons, but I want to apply the cut to the transverse momentum of lepton pairs.

How can I apply the pt(e+mu-) on lepton pairs?

Thank you.

Best,
Mamutjan.

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Solved by:
Valentin Hirschi
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Best Valentin Hirschi (valentin-hirschi) said : 		#1

If the e+ and mu- are the only leptons in the final states of your process, you can used the following default cut:

 0.0 = ptllmin ! Minimum pt for 4-momenta sum of leptons(l and vl)

Otherwise, you will have to implement a customized cut yourself in 'cuts.f', by following the guidelines indicated on:
https://cp3.irmp.ucl.ac.be/projects/madgraph/wiki/FAQ-General-1

Revision history for this message
Mamutjan (mamutjan) said : 		#2

Thank you!
The process is a a > w+ w- > e+ mu- vl vl~, so I am going to implement the customized cut.