IdentifiedFinalState.hh

// -*- C++ -*-
#ifndef RIVET_IdentifiedFinalState_HH
#define RIVET_IdentifiedFinalState_HH
 
#include "Rivet/Projections/FinalState.hh"
 
namespace Rivet {
 

  class IdentifiedFinalState : public FinalState {
  public:


    IdentifiedFinalState(const FinalState& fsp, const vector<PdgId>& pids=vector<PdgId>());

    IdentifiedFinalState(const FinalState& fsp, PdgId pid);

    IdentifiedFinalState(const Cut& c=Cuts::open(), const vector<PdgId>& pids=vector<PdgId>());

    IdentifiedFinalState(const vector<PdgId>& pids, const Cut& c=Cuts::open());

    IdentifiedFinalState(const Cut& c, PdgId pid);

    IdentifiedFinalState(PdgId pid, const Cut& c=Cuts::open());
 

    RIVET_DEFAULT_PROJ_CLONE(IdentifiedFinalState);


    using Projection::operator =;
 

    const set<PdgId>& acceptedIds() const {
      return _pids;
    }

    IdentifiedFinalState& acceptId(PdgId pid) {
      _pids.insert(pid);
      return *this;
    }

    IdentifiedFinalState& acceptIds(const vector<PdgId>& pids) {
      for (const PdgId pid : pids) _pids.insert(pid);
      return *this;
    }

    IdentifiedFinalState& acceptIdPair(PdgId pid) {
      _pids.insert(pid);
      _pids.insert(-pid);
      return *this;
    }

    IdentifiedFinalState& acceptIdPairs(const vector<PdgId>& pids) {
      for (const PdgId pid : pids) {
        _pids.insert(pid);
        _pids.insert(-pid);
      }
      return *this;
    }

    IdentifiedFinalState& acceptNeutrinos() {
      acceptIdPair(PID::NU_E);
      acceptIdPair(PID::NU_MU);
      acceptIdPair(PID::NU_TAU);
      return *this;
    }

    IdentifiedFinalState& acceptChLeptons() {
      acceptIdPair(PID::ELECTRON);
      acceptIdPair(PID::MUON);
      acceptIdPair(PID::TAU);
      return *this;
    }

    void reset() {
      _pids.clear();
    }
 
    // The remaining particles
    virtual const Particles& remainingParticles() const {
      return _remainingParticles;
    }
 

    void project(const Event& e);

    CmpState compare(const Projection& p) const;
 
 
  protected:

    set<PdgId> _pids;
 
    // A vector of all other particles in the final state
    Particles _remainingParticles;
 
  };
 
 
}
 
#endif