Difference between bofore and after parton shower

Asked by DavidHydroneWang on 2019-01-14

I want to know how to compare the difference between before and after parton shower, say I have a process p p > h j j [QCD] , if I want to compare the Pt distributions of h or j before and after parton shower, how should I deal with the two events files with MadAnalysis5, especially the .hepmc.gz file? Should i use the .hepmc file directly or the reconstructed .lhe file?

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Language:
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Status:
Answered
For:
MadAnalysis 5 Edit question
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Last query:
2019-01-15
Last reply:
2019-01-15
Benjamin Fuks (fuks) said : #1

Good morning [by the way, this is a good way to start a message],

The pre-parton shower information is available in the reconstructed file (status code 3). However, you need to design the reconstruction of your Higgs boson to get the post-shower information.

Regards,

Benjamin

> On 14 Jan 2019, at 10:22 , DavidHydroneWang <email address hidden> wrote:
>
> New question #677650 on MadAnalysis 5:
> https://answers.launchpad.net/madanalysis5/+question/677650
>
> I want to know how to compare the difference between before and after parton shower, say I have a process p p > h j j [QCD] , if I want to compare the Pt distributions of h or j before and after parton shower, how should I deal with the two events files with MadAnalysis5, especially the .hepmc.gz file? Should i use the .hepmc file directly or the reconstructed .lhe file?
>
> --
> You received this question notification because you are an answer
> contact for MadAnalysis 5.

DavidHydroneWang (davidh.wang) said : #2

Good morning!

Thanks for your explanation! But what do you mean by designing the reconstruction of Higgs boson to get the post-shower information?

Sincerely yours,

David

Benjamin Fuks (fuks) said : #3

Hi,

I mean, doing a full analysis to attach some of the reconstructed final-state objects to a would-be decaying Higgs boson.

Regards,

Benjamin

> On 15 Jan 2019, at 02:03 , DavidHydroneWang <email address hidden> wrote:
>
> Question #677650 on MadAnalysis 5 changed:
> https://answers.launchpad.net/madanalysis5/+question/677650
>
> Status: Answered => Open
>
> DavidHydroneWang is still having a problem:
> Good morning!
>
> Thanks for your explanation! But what do you mean by designing the
> reconstruction of Higgs boson to get the post-shower information?
>
>
> Sincerely yours,
>
> David
>
> --
> You received this question notification because you are an answer
> contact for MadAnalysis 5.

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