Updates of param card not considered for reweighting

Asked by Hannes on 2020-11-27

Hi,

we have observed a problem, where changes in the param card are not considered for reweighting.

The concrete example is that, for a sample with reweighting in the dim6top model, the the top mass was changed for the generation of events but this change was not taken into account by the reweighting module, for which the restriction card of the model was loaded but not the updated param card.

This seems to be fixed with this update here:
https://bazaar.launchpad.net/~mg5core1/mg5amcnlo/2.8.3.py3/revision/298

Now we were wondering, since which version this problem exists (or whether the behaviour was ever different), since it might affect a number of samples that have been generated.

Cheers,
Hannes

Question information

Language:
English Edit question
Status:
Solved
For:
MadGraph5_aMC@NLO Edit question
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Solved by:
Hannes
Solved:
2020-11-27
Last query:
2020-11-27
Last reply:
2020-11-27

I guess that it was always setup like that.

This correspond to a strategy that if you setup the exact some command in the reweighting and in the madevent script they will be to fully reproduce the run. But I agree that since this is reweighting it makes more sense to use as default the original card used to generate the model and not the default card for the model (as it is the default for madevent).

Cheers,

Olivier

Hannes (hannes3) said : #2

Thanks Olivier!