Problems encountered when calculating deep inelastic scattering with MadGraph+Pythia
Hi,
I am using MadGraph (3.1.0) + Pythia8 to calculate fixed target neutrino deep inelastic scattering.
The MadGraph part works well, using the settings in https:/
The Pythia8 is loaded correctly by MadGraph.
However, after the Pythia8 run is done, I found Pythia8 doesn't generate any events.
I used Enu = 1e6 GeV and proton at rest (Ep = 0.938 GeV).
Then I tried Enu = 1e3 GeV and Ep = 1e3 GeV. Same CM energy as above, but Pythia can generate lots of events.
Then I have tried other different energies of Enu and Ep, and found that whether Pythia can generate events depend mainly on Ep but also on CM energy.
Then a friend told me that this is probably because MadGraph or Pythia has a minimum threshold of pT to do hadronization. If so, is there a way to change the minimum threshold of pT? If not, what could be the reason for the above?
Thanks very much!
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