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Implementation of AK4 Jet energy correction

Davide Valsecchi requested to merge github/fork/mmarchegiani/main into main

Created by: mmarchegiani

The AK4 jet energy corrections as recommended in https://twiki.cern.ch/twiki/bin/view/CMS/JECDataMC#Jet_Energy_Corrections_in_Run2 are implemented. The modifications include the following:

  • Application of jet energy corrections through the member function apply_JEC(), before object preselections
  • Definition of the core function jet_correction() in lib.objects
  • Correction files saved in dedicated folder parameters/corrections/JEC/

The up/down variations of the JES will be implemented in a future PR.

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