MadAnalysis 5

Differential jet rate plots

Asked by Jennet

Hi MadAnalysis team,

I'd like to check on the differential jet rates for some events that I've already generated using Madgraph, with parton showering done in Pythia. I found some (possibly outdated) instructions for doing this as follows:

./bin/ma5 -H
ma5>import HEPMC/*
ma5>set main.merging.check = true
ma5>set main.merging.njets = 4
ma5>set main.lumi=0.01
ma5>submit dir

When I try this on a .hepmc file, all of my entries end up in the bin with log10(DJR*) = 0. Am I missing a step? I'm using version v1.1.11_patch1b. Thanks!

Jennet

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Benjamin Fuks (fuks) said : 		#1

Hi Jennet,

Please upgrade your ma5 version to the last version. We fixed a few things and v1.11 should not work for merged hepmc files. You may also want to try the main.merging.ma5_mode mode or pythia8 that works for NLO merged samples.

Cheers,

Benjamin

On 27 Jul 2016, at 07:57 , Jennet <email address hidden> wrote:

> New question #304415 on MadAnalysis 5:
> https://answers.launchpad.net/madanalysis5/+question/304415
>
> Hi MadAnalysis team,
>
> I'd like to check on the differential jet rates for some events that I've already generated using Madgraph, with parton showering done in Pythia. I found some (possibly outdated) instructions for doing this as follows:
>
> ./bin/ma5 -H
> ma5>import HEPMC/*
> ma5>set main.merging.check = true
> ma5>set main.merging.njets = 4
> ma5>set main.lumi=0.01
> ma5>submit dir
>
> When I try this on a .hepmc file, all of my entries end up in the bin with log10(DJR*) = 0. Am I missing a step? I'm using version v1.1.11_patch1b. Thanks!
>
> Jennet
>
> --
> You received this question notification because you are an answer
> contact for MadAnalysis 5.

Revision history for this message
Jennet (jdickinson-i) said : 		#2

Hi Benjamin,

I updated to v1.4 and it works perfectly -- thanks!

Jennet