MiniIsolation.h

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#ifndef PhysicsTools_PatUtils_PFIsolation_h
#define PhysicsTools_PatUtils_PFIsolation_h

/*
  Defines a function to compute MiniIsolation given a 4-vector and a collection
  of packed PF candidates.

  Mini-Isolation reference: https://hypernews.cern.ch/HyperNews/CMS/get/susy/1991.html
*/

#include "DataFormats/Candidate/interface/Candidate.h"
#include "DataFormats/PatCandidates/interface/PackedCandidate.h"
#include "DataFormats/PatCandidates/interface/PFIsolation.h"
#include "DataFormats/Math/interface/LorentzVector.h"

namespace pat{

  float miniIsoDr(const reco::Candidate::PolarLorentzVector &p4, float mindr, float maxdr,
          float kt_scale);

  // see src file for definitions of parameters
  PFIsolation getMiniPFIsolation(const pat::PackedCandidateCollection *pfcands, const reco::Candidate::PolarLorentzVector& p4,
                                 float mindr=0.05, float maxdr=0.2, float kt_scale=10.0,
                                 float ptthresh=0.5, float deadcone_ch=0.0001,
                                 float deadcone_pu=0.01, float deadcone_ph=0.01, float deadcone_nh=0.01,
                                 float dZ_cut=0.0);

  double muonRelMiniIsoPUCorrected(const PFIsolation& iso,
                   const reco::Candidate::PolarLorentzVector& p4,
                   double dr,
                   double rho,
                                   const std::vector<double> &area);
}

#endif