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I am studying jet performance, particularly for the Higgs to diphoton channel.

 - Which jet reconstruction algorithm (AntiKt4EMTopo/PFlow) is best suited for our samples?
 - In whcih situations do the jet energy scale and resolution performance suffer? Can they be improved?

The work-in-progress code is called HGamJetStudy, a RootCore package for two studies:

1. ''MCJES'' : Monte-Carlo based jet energy scale & resolution for general samples.
2. ''JetDiphotonScale'' : (new) Look at "response" of jet to diphoton in Higgs samples.

The outputs are used to give us results (pretty plots):

1. ``MCJES -> plotJES``: JES results
2. ``MCJES -> plotJER``: JER results
3. ``JetDiphotonScale -> ???``: (to be done)

Full code and instructions are hosted on GitLab: 

My working direcctory is setup on CERN AFS:
<code>
/afs/cern.ch/work/t/tapark/public/AnalysisBase-2.4.28
</code>
(to be moved to EOS in the future)

''AnalysisBase-X'': code repository for the work.
''xAOD'': local copies of some sample files for testing.
''MCJES'': results for this study.
''JetDiphoton'': results for this study.

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