EvtRelBreitWignerBarrierFact.hh

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//--------------------------------------------------------------------------
//
// Environment:
//      This software is part of the EvtGen package developed jointly
//      for the BaBar and CLEO collaborations.  If you use all or part
//      of it, please give an appropriate acknowledgement.
//
// Copyright Information: See EvtGen/COPYRIGHT
//      Copyright (C) 1998      Caltech, UCSB
//
// Module: EvtGen/EvtAbsLineShape.hh
//
// Description: Class to keep the particle properties for
//              one particle
//
// Modification history:
//
//    Lange     March 10, 2001         Module created
//
//------------------------------------------------------------------------
 
#ifndef EVTRELBREITWIGNERBARRIERFACT_HH
#define EVTRELBREITWIGNERBARRIERFACT_HH
 
#include "EvtAbsLineShape.hh"
 
class EvtRelBreitWignerBarrierFact : public EvtAbsLineShape {
 
public:
  EvtRelBreitWignerBarrierFact();
  EvtRelBreitWignerBarrierFact( double mass, double width, double maxRange,
                                EvtSpinType::spintype sp );
  // figure the m1 and l on the fly
  //                   double mDaug1, double mDaug2, int l);
  ~EvtRelBreitWignerBarrierFact();
  EvtRelBreitWignerBarrierFact& operator=( const EvtRelBreitWignerBarrierFact& x );
  EvtRelBreitWignerBarrierFact( const EvtRelBreitWignerBarrierFact& x );
 
  EvtAbsLineShape* clone();
 
  double getMassProb( double mass, double massPar, int nDaug, double* massDau );
  // othDaugId is the other daughter of the parent in the case of a two body decay (only!)
  // ie B->rho K rho->pipi, othDaugId = K
  double getRandMass( EvtId* parId, int nDaug, EvtId* dauId, EvtId* othDaugId, double maxMass,
                      double* dauMasses );
 
  virtual void reSetBlatt( double blatt ) { _blatt = blatt; }
 
protected:
  double _blatt;
  bool   _errorCond;
};
 
#endif