Wrong number of weights

Asked by Amin Aboubrahim on 2017-11-20

Hi Olivier,

Using Pythia8 inside MG5 2.6.0, I have obtained a hepmc file in which matching/merging has been switched on along with the systematics. Because of that, weights were added to the file rather than vetoing events. When I tried running Delphes on this file, it failed in reading it. It turns out that the error is coming from this line:

E 0 -1 -1.0000000000000000e+00 -1.0000000000000000e+00 -1.0000000000000000e+00 0 0 94 1 2 0 7 3.1671032000000003e-05 3.1671032000000003e-05 3.1671032000000003e-05 3.0000000000000000e+01 4.1375492312388307e+00 1.0000000000000000e+10

The number of weights is set to 7 but only 6 are generated. The Delphes team said it is caused by the code producing the file.
Is this an MG5 or pythia8 issue?

Thank you,
Amin

Question information

Language:
English Edit question
Status:
Open
For:
MadGraph5_aMC@NLO Edit question
Assignee:
Valentin Hirschi Edit question
Last query:
2017-11-20
Last reply:
Amin Aboubrahim (amin83) said : #1

Hi,

Does anyone have an idea what could be the problem in this?

Thank you in advance,
Amin

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