Qw.h

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// this file is -*- C++ -*-
 
/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef jetsubstructureutils_qw_header
#define jetsubstructureutils_qw_header
#include "JetSubStructureUtils/SubstructureCalculator.h"
#include "fastjet/JetDefinition.hh"
 
namespace JetSubStructureUtils {
  class Qw : public SubstructureCalculator<double> { 
    public:
 
    enum QwVariant {
      Normal,
      MassCut,
      SmallSubjets,
    };
    
    Qw( QwVariant mode=Normal, double p=-1, fastjet::JetAlgorithm jetalg=fastjet::kt_algorithm) ;
    
    using SubstructureCalculator::result;
    virtual double result(const fastjet::PseudoJet &jet) const;
 
    virtual double result(std::vector<fastjet::PseudoJet> &constituents) const;
    
    
  private:
    QwVariant m_vMode;
    fastjet::JetDefinition m_jetdef;
    
    double m_massCut;
  };
}
 
#endif