DecaysFinalStateFilter.h

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/
 
// GeneratorFilters/DecaysFinalStateFilter
//
// picks events with a given number of quarks, leptons and neutrinos from
// decays of a list of specified resonances (e.g. W, Z, ...)
//
// Authors:
// Kerim Suruliz Nov 2014
// Frank Siegert Nov 2014
 
#ifndef GENERATORFILTERSDECAYSFINALSTATEFILTER_H
#define GENERATORFILTERSDECAYSFINALSTATEFILTER_H
 
#include "GeneratorModules/GenFilter.h"
 
class DecaysFinalStateFilter : public GenFilter {
 
public:
 
  DecaysFinalStateFilter(const std::string& name, ISvcLocator* pSvcLocator);
 
  virtual ~DecaysFinalStateFilter() { }
 
  virtual StatusCode filterInitialize() {
    return StatusCode::SUCCESS;
  }
 
  virtual StatusCode filterFinalize() {
    return StatusCode::SUCCESS;
  }
 
  virtual StatusCode filterEvent();
 
 
private:
 
  // list of allowed resonances from which decay products are counted
  std::vector<int> m_PDGAllowedParents;
 
  // required (exact) number of quarks, b-quarks, charged leptons, neutrinos and photons from decays
  int m_NQuarks, m_NbQuarks, m_NChargedLeptons, m_NNeutrinos, m_NPhotons;
 
  // required minimal number of quarks, b-quarks, charged leptons, neutrinos and photons from decays
  int m_MinNQuarks, m_MinNbQuarks, m_MinNChargedLeptons, m_MinNNeutrinos, m_MinNPhotons;
 
};
 
#endif