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Add two new files for chi_c -> (J/psi -> mu+ mu-) mu+ mu- decays

Vanya Belyaev requested to merge ibelyaev/chic into master

Add two new files for chi_c -> (J/psi -> mu+ mu-) mu+ mu- decays

  • 28144042 chic1_Jpsimumu=TightCut
  • 28144052 chic2_Jpsimumu=TightCut

28144042: Decay of (prompt) chi_c1(1P) state into J/psi mu+mu- final state

  • tight cuts for the J/psi mesons and all four final state muons are applied
  • very nice trick by Michael Wilkinson @mwilkins is used:
    • only charmonium production is activated for Pythia8
  • CPU performance is <2seconds/event (614 seconds/400 events)
  • integrated efficiency for generator-level cuts is (3.56+-0.25)% as reported in GeneratorLog.xml
  • efficiency for generator-level cuts is (7.15+-0.36)%

28144052: Decay of (prompt) chi_c2(1P) state into J/psi mu+mu- final state

  • tight cuts for the J/psi mesons and all four final state muons are applied
  • very nice trick by Michael Wilkinson @mwilkins is used:
    • only charmonium production is activated for Pythia8
  • CPU performance is <1seconds/event (355 seconds/400 events)
  • integrated efficiency for generator-level cuts is (3.48+-0.24)% as reported in GeneratorLog.xml
  • efficiency for generator-level cuts is (6.73+-0.32)%
Edited by Vanya Belyaev

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