adjustForPileup.h

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// Common tool for pileup subtraction. Can be used
// to subtract pileup as a 4-vector or just to scale
// the jet 4-vector so that its Pt becomes less by
// the amount of pileup Pt.
//
// If the amount of pileup is larger than the amount
// of Pt available in the jet, all components of the
// jet 4-vector will be set to 0.
//
// I. Volobouev
// July 2012
 
#ifndef RecoJets_FFTJetAlgorithms_adjustForPileup_h
#define RecoJets_FFTJetAlgorithms_adjustForPileup_h
 
#include "DataFormats/Math/interface/LorentzVector.h"
 
namespace fftjetcms {
  math::XYZTLorentzVector adjustForPileup(const math::XYZTLorentzVector& jet,
                                          const math::XYZTLorentzVector& pileup,
                                          bool subtractPileupAs4Vec);
}
 
#endif  // RecoJets_FFTJetAlgorithms_adjustForPileup_h