MadGraph5_aMC@NLO

Reweight Events : generate events with higher pt of jets

Asked by user1905

Hi experts,
I am trying to generate di-boson production, p p > w- w+, w- > l- vl~, w+ > j j. In my analysis I required more statistics for the higher pt jet, i.e, the number of jets having say 200 GeV should be higher. Can we do something in madgraph that would allow us to maintain to overall shape of pt, yet could offer us more events with higher pt jets.

 Any suggestion, solution or comments are appreciated?

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Olivier Mattelaer (olivier-mattelaer) said : 		#1

I guess this FAQ is the answer to your question. Since the idea will be to have weighted events that allow to have more event in a region of the phase-space without compromise on the shape of the distribution (but obviously compromise on the fact that sample is not unweighted and to the cost to an higher statistical uncertainty on the bulk)

FAQ #3326: “How to generated weighted events according to a function (biased generation)”.

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user1905 (userinhep) said : 		#2

Thanks Olivier for the prompt reply. And it solved my query. Can you have a look into the previous question.
https://answers.launchpad.net/mg5amcnlo/+question/707961