# issues with muon PDF in MadGraph5

Dear authors,

we are trying to simulate a VBF process in a muon collider, say mu+ mu- > vm vm~ h . At the parton level with lpp1=lpp2=0 and pdflabel=none it shows a correct cross-section. However, we wish to incorporate muon PDF in the simulation, so that we can get photons in the muon beams. Is there a way to achieve this in MadGraph5 version 3.4.2?

Kindly note that we are not talking about the EVA or IWW. We are concerned with the photons in the initial state muon beams themselves.

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 Revision history for this message Olivier Mattelaer (olivier-mattelaer) said on 2023-03-04: #1

Did you try the following

generate a a > XXXXXXXX
output
launch
set lpp1 4
set lpp2 -4
set fixed_scale 10

Cheers,

Olivier