BoostedHadTopAndTopPair.h

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
// --------------------------------------------------
// 
// File:  GeneratorFilters/BoostedHadTopAndTopPair.h
// Description: Filter for ttbar as function of the pT of the hadronic top
//
// Authors:
//         I Hinchliffe:  December 2001
//         A Buckley:     April 2009
 
#ifndef GeneratorFilter_BoostedHadTopAndTopPair_H
#define GeneratorFilter_BoostedHadTopAndTopPair_H
 
#include <iostream>
#include "GeneratorModules/GenFilter.h"
 
#include "AtlasHepMC/GenParticle_fwd.h"
 

class BoostedHadTopAndTopPair : public GenFilter {
 
public:

  BoostedHadTopAndTopPair(const std::string& name, ISvcLocator* pSvcLocator);

  virtual ~BoostedHadTopAndTopPair() {
  }

  virtual StatusCode filterInitialize() {
    return StatusCode::SUCCESS;
  }

  virtual StatusCode filterFinalize() {
    return StatusCode::SUCCESS;
  }

  virtual StatusCode filterEvent(const EventContext& ctx);
 
 
private:
 
  // properties
  double m_tHadPtMin;
  double m_tHadPtMax;
  double m_tPairPtMin;  
  double m_tPairPtMax;
  int m_cutPtOf;
 
  HepMC::ConstGenParticlePtr   findInitial(const HepMC::ConstGenParticlePtr& part) const;
  bool  isFromTop(const HepMC::ConstGenParticlePtr& part) const;
  bool  isHadronic(const HepMC::ConstGenParticlePtr& part) const;
  bool  isFinalParticle(const HepMC::ConstGenParticlePtr& part) const;
  HepMC::FourVector momentumBofW(const HepMC::ConstGenParticlePtr& part) const;
 
};
 
#endif