BoostedHadTopAndTopPairFilterTool.h

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
// --------------------------------------------------
// 
// Description: Filter for ttbar as function of the pT of the hadronic top
//
// Authors:
//         I Hinchliffe:  December 2001
//         A Buckley:     April 2009
 
#ifndef DerivationFrameworkTop_BoostedHadTopAndTopPairFilterTool_H
#define DerivationFrameworkTop_BoostedHadTopAndTopPairFilterTool_H
 
#include "AthenaBaseComps/AthAlgTool.h"
#include "xAODTruth/TruthEventContainer.h"
#include <iostream>
#include <cmath>
 
namespace DerivationFramework{
 
static const InterfaceID IID_BoostedHadTopAndTopPairFilterTool("BoostedHadTopAndTopPairFilterTool", 1, 0);
 
class BoostedHadTopAndTopPairFilterTool: public AthAlgTool {
public:
  BoostedHadTopAndTopPairFilterTool(const std::string& t, const std::string& n, const IInterface* p);
  virtual ~BoostedHadTopAndTopPairFilterTool();
  virtual StatusCode initialize();
  virtual StatusCode finalize();
  int filterFlag(double, double) const;
 
  static const InterfaceID& interfaceID() { return IID_BoostedHadTopAndTopPairFilterTool; }
 
private:
 
  std::string m_mcName;
 
  // properties
  // use pt cuts locally for now
  //  double m_tHadPtCut;
  //  double m_tPairPtCut;
  int m_cutPtOf;
 
  const xAOD::TruthParticle* findInitial(const xAOD::TruthParticle* part) const;
  bool  isFromTop(const xAOD::TruthParticle* part) const;
  bool  isHadronic(const xAOD::TruthParticle* part) const;
  bool  isFinalParticle(const xAOD::TruthParticle* part) const;
  double PxBofW(const xAOD::TruthParticle* part) const;
  double PyBofW(const xAOD::TruthParticle* part) const;
 
};
 
} 
 
 
#endif