EventTools.h

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/*
   Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
 */
 
#ifndef EVENTTOOLS_H_
#define EVENTTOOLS_H_
 
#include <string>
#include <vector>
 
#include "xAODMissingET/MissingET.h"
 
namespace xAOD {
  class IParticle;
}
 
namespace top {
  class Event;
  
  enum class LepPartonOriginFlag{
    MissingTruthInfo=0,  
    FromAntiTopViaHadronicBosonToHF=-3,  
    FromAntiTopViaLeptonicBoson=-2,  
    FromAntiTopViaQuarkToHF=-1, 
    FromTopViaQuarkToHF=1, 
    FromTopViaLeptonicBoson=2, 
    FromTopViaHadronicBosonToHF=3, 
    FromLeptonicBoson=4, 
    FromHadronicBosonToHF=5, 
    FromHFHadronOfUnkownOrigin=6, 
    FromHiggsViaLeptonicBosonToHF=7, 
    FromHiggsViaHadronicBosonToHF=8, 
    FromHiggsToHF=9, 
    FromHiggs=10, 
    FromBSM=1000, 
    FromBSMViaLeptonicBosonToHF=1001, 
    FromBSMViaHadronicBosonToHF=1002, 
    FromBSMToHF=1003, 
    Unknown=9999, 
  };
  
  enum class LepParticleOriginFlag{
    MissingTruthInfo=0, 
    FromPhoton=22, 
    FromPhotonToTau=2215, 
    FromLeptonicZ=23, 
    FromLeptonicZToTau=2315, 
    FromLeptonicW=24, 
    FromLeptonicWToTau=2415, 
    FromHiggs=25, 
    FromHiggsToTau=2515, 
    FromB=5, 
    FromBtoTau=515, 
    FromBtoC=54, 
    FromBtoCtoTau=5415,  
    FromC=4, 
    FromCtoTau=415, 
    FromTau=15, 
    FromLightHadron=100, 
    FromBSM=1000, 
    FromBSMToTau=1001, 
    Unknown=9999, 
  };
 
  void check(bool thingToCheck, const std::string& usefulFailureMessage);
 
  double deltaR(const xAOD::IParticle& p1, const xAOD::IParticle& p2);
 
  double deltaPhi(const xAOD::IParticle& p1, const xAOD::IParticle& p2);
 
  double mwt(const xAOD::IParticle& lepton, const xAOD::MissingET& met);
 
  double ht(const top::Event& event);
 
  double invariantMass(const xAOD::IParticle& p1, const xAOD::IParticle& p2);
 
  bool isSimulation(const top::Event& event);
 
  bool descendingPtSorter(const xAOD::IParticle* p0, const xAOD::IParticle* p1);
 
  std::vector<int> calculateBootstrapWeights(int nreplicas, int eventNumber, int mcChannelNumber);
}
 
#endif