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EvtAbsLineShape.hh
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EvtAbsLineShape.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 EVTABSLINESHAPE_HH
#define EVTABSLINESHAPE_HH
#include "EvtGenBase/EvtSpinType.hh"
#include "EvtGenBase/EvtId.hh"
#include <vector>
class EvtId;
class EvtAbsLineShape {
public:
EvtAbsLineShape();
EvtAbsLineShape(double mass, double width, double maxRange, EvtSpinType::spintype sp);
virtual ~EvtAbsLineShape();
EvtAbsLineShape& operator=(const EvtAbsLineShape& x);
EvtAbsLineShape(const EvtAbsLineShape& x);
double getMass() {return _mass;}
double getMassMin() {return _massMin;}
double getMassMax() {return _massMax;}
double getMaxRange() {return _maxRange;}
double getWidth() {return _width;}
EvtSpinType::spintype getSpinType() {return _spin;}
virtual double rollMass();
virtual EvtAbsLineShape* clone();
void reSetMass(double mass) { _mass=mass;}
void reSetWidth(double width) { _width=width;}
void reSetMassMin(double mass) { _massMin=mass;}
void reSetMassMax(double mass) { _massMax=mass;}
virtual void reSetBlatt(double /*blatt*/) {};
virtual void reSetBlattBirth(double /*blatt*/) {};
void includeBirthFactor(bool yesno) { _includeBirthFact = yesno; }
void includeDecayFactor(bool yesno) { _includeDecayFact = yesno; }
void setPWForDecay( int spin, EvtId d1, EvtId d2) {
_userSetPW.push_back(spin);
_userSetPWD1.push_back(d1);
_userSetPWD2.push_back(d2);
}
void setPWForBirthL( int spin, EvtId par, EvtId othD) {
_userSetBirthPW.push_back(spin);
_userSetBirthOthD.push_back(othD);
_userSetBirthPar.push_back(par);
}
virtual double getRandMass(EvtId *parId, int nDaug, EvtId *dauId, EvtId *othDaugId,double maxMass, double *dauMasses);
virtual double getMassProb(double mass, double massPar, int nDaug, double *massDau);
protected:
bool _includeDecayFact;
bool _includeBirthFact;
double _mass;
double _massMin;
double _massMax;
double _width;
double _maxRange;
// allow for special cases where the default method of picking the
//lowest allowed partial wave for a decay is not the right answer.
// string is "<spin> <daughter1> <daughter2>"
//new 9/12/2003 Lange
std::vector<EvtId> _userSetPWD1,_userSetPWD2;
std::vector<int> _userSetPW;
// also do it for birth factors
std::vector<EvtId> _userSetBirthPar,_userSetBirthOthD;
std::vector<int> _userSetBirthPW;
EvtSpinType::spintype _spin;
};
#endif

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