EvtDTopipi0Eta Class Reference

#include <EvtDTopipi0Eta.hh>

Inheritance diagram for EvtDTopipi0Eta:

Public Member Functions
	EvtDTopipi0Eta ()
virtual	~EvtDTopipi0Eta ()
void	getName (std::string &name)
EvtDecayBase *	clone ()
void	init ()
void	initProbMax ()
void	decay (EvtParticle *p)
Public Member Functions inherited from EvtDecayProb
void	makeDecay (EvtParticle *p)
void	setProb (double prob)
double	getProb ()
void	setWeight (double weight)
virtual	~EvtDecayProb ()
Public Member Functions inherited from EvtDecayBase
virtual std::string	commandName ()
virtual void	command (std::string cmd)
double	getProbMax (double prob)
double	resetProbMax (double prob)
	EvtDecayBase ()
virtual	~EvtDecayBase ()
virtual bool	matchingDecay (const EvtDecayBase &other) const
EvtId	getParentId ()
double	getBranchingFraction ()
void	disableCheckQ ()
void	checkQ ()
int	getNDaug ()
EvtId *	getDaugs ()
EvtId	getDaug (int i)
int	getNArg ()
int	getPHOTOS ()
void	setPHOTOS ()
void	setVerbose ()
void	setSummary ()
double *	getArgs ()
std::string *	getArgsStr ()
double	getArg (int j)
std::string	getArgStr (int j)
std::string	getModelName ()
int	getDSum ()
int	summary ()
int	verbose ()
void	saveDecayInfo (EvtId ipar, int ndaug, EvtId *daug, int narg, std::vector< std::string > &args, std::string name, double brfr)
void	printSummary ()
void	setProbMax (double prbmx)
void	noProbMax ()
void	checkNArg (int a1, int a2=-1, int a3=-1, int a4=-1)
void	checkNDaug (int d1, int d2=-1)
void	checkSpinParent (EvtSpinType::spintype sp)
void	checkSpinDaughter (int d1, EvtSpinType::spintype sp)
virtual int	nRealDaughters ()

Additional Inherited Members
Static Public Member Functions inherited from EvtDecayBase
static void	findMasses (EvtParticle *p, int ndaugs, EvtId daugs[10], double masses[10])
static void	findMass (EvtParticle *p)
static double	findMaxMass (EvtParticle *p)
Protected Member Functions inherited from EvtDecayBase
bool	daugsDecayedByParentModel ()
Protected Attributes inherited from EvtDecayBase
bool	_daugsDecayedByParentModel

Detailed Description

Definition at line 8 of file EvtDTopipi0Eta.hh.

Constructor & Destructor Documentation

EvtDTopipi0Eta()

EvtDTopipi0Eta::EvtDTopipi0Eta ( )

inline

Definition at line 11 of file EvtDTopipi0Eta.hh.

{}

Referenced by clone().

~EvtDTopipi0Eta()

EvtDTopipi0Eta::~EvtDTopipi0Eta ( )

virtual

Definition at line 32 of file EvtDTopipi0Eta.cc.

{}

Member Function Documentation

clone()

EvtDecayBase * EvtDTopipi0Eta::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 38 of file EvtDTopipi0Eta.cc.

                                   {
   return new EvtDTopipi0Eta;
}

decay()

void EvtDTopipi0Eta::decay ( EvtParticle * p )

virtual

Implements EvtDecayBase.

Definition at line 97 of file EvtDTopipi0Eta.cc.

                                         {
 
   // This piece of code could in principle be used to calculate maximum
   // probablity on fly. But as it uses high number of points and model
   // deals with single final state, we keep hardcoded number for now rather
   // than adapting code to work here.
 
//   double maxprob = 0.0;
//   for(int ir=0;ir<=60000000;ir++){
//      p->initializePhaseSpace(getNDaug(),getDaugs());
//      EvtVector4R D1 = p->getDaug(0)->getP4();
//      EvtVector4R D2 = p->getDaug(1)->getP4();
//      EvtVector4R D3 = p->getDaug(2)->getP4();
//
//      double P1[4], P2[4], P3[4];
//      P1[0] = D1.get(0); P1[1] = D1.get(1); P1[2] = D1.get(2); P1[3] = D1.get(3);
//      P2[0] = D2.get(0); P2[1] = D2.get(1); P2[2] = D2.get(2); P2[3] = D2.get(3);
//      P3[0] = D3.get(0); P3[1] = D3.get(1); P3[2] = D3.get(2); P3[3] = D3.get(3);
//
//      double value;
//      value = calDalEva(P1, P2, P3);
//      if(value>maxprob) {
//         maxprob=value;
//         cout << "ir = " << ir << " maxProb= " << value << endl;
//      }
//   }
//   cout << "maxProb = " << maxprob << endl;
 
   p->initializePhaseSpace(getNDaug(),getDaugs());
   EvtVector4R D1 = p->getDaug(0)->getP4();
   EvtVector4R D2 = p->getDaug(1)->getP4();
   EvtVector4R D3 = p->getDaug(2)->getP4();
 
   double P1[4], P2[4], P3[4];
   P1[0] = D1.get(0); P1[1] = D1.get(1); P1[2] = D1.get(2); P1[3] = D1.get(3);
   P2[0] = D2.get(0); P2[1] = D2.get(1); P2[2] = D2.get(2); P2[3] = D2.get(3);
   P3[0] = D3.get(0); P3[1] = D3.get(1); P3[2] = D3.get(2); P3[3] = D3.get(3);
 
   double value;
   value = calDalEva(P1, P2, P3);
   setProb(value);
   return;
 
}

getName()

void EvtDTopipi0Eta::getName ( std::string & name )

virtual

Implements EvtDecayBase.

Definition at line 34 of file EvtDTopipi0Eta.cc.

                                                 {
   model_name="DTopipi0Eta";
}

init()

void EvtDTopipi0Eta::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 42 of file EvtDTopipi0Eta.cc.

                         {
   // check that there are 0 arguments
   checkNArg(0);
   checkNDaug(3);
   checkSpinParent(EvtSpinType::SCALAR);
   checkSpinDaughter(0,EvtSpinType::SCALAR);
   checkSpinDaughter(1,EvtSpinType::SCALAR);
   checkSpinDaughter(2,EvtSpinType::SCALAR);
 
   phi[0] = -3.3276; rho[0] =  0.31478; //rho eta
   phi[1] =  0.0;    rho[1] =  1.0;     //a0+ pi0   
   phi[2] =  0.0;    rho[2] = -1.0;     //a00 pi+
 
   //cout << "Initializing DTopipi0Eta" << endl;
   //for (int i=0; i<3; i++) {
   //   cout << i << " rho= " << rho[i] << " phi= " << phi[i] << endl;
   //}
   mrho = 0.77511;
   ma0 = 0.99;
   Grho = 0.1491;
   Ga0 = 0.0756;
 
   const double mk0 = 0.497614;
   const double mass_Kaon = 0.49368;
   const double mass_Pion = 0.13957;
   const double mass_Pi0 = 0.1349766;
   const double meta = 0.547862;
   mpi = 0.13957;
   mD = 1.86966;
   sD = mD*mD;
   spi = mpi*mpi;
   snk = mk0*mk0;
   sck = mass_Kaon*mass_Kaon;
   scpi = mass_Pion*mass_Pion;
   snpi = mass_Pi0*mass_Pi0;
   seta = meta*meta;
 
   pi = 3.1415926;
 
   ci  = EvtComplex(0.0,1.0);
   one = EvtComplex(1.0,0.0);
 
   int GG[4][4] = { {1,0,0,0}, {0,-1,0,0}, {0,0,-1,0}, {0,0,0,-1} };
   for (int i=0; i<4; i++) {
      for (int j=0; j<4; j++) {
         G[i][j] = GG[i][j];
      }
   }
 
}

initProbMax()

void EvtDTopipi0Eta::initProbMax ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 93 of file EvtDTopipi0Eta.cc.

                                 {
   setProbMax(20.0); 
}

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The documentation for this class was generated from the following files:

• EvtDTopipi0Eta.hh
• EvtDTopipi0Eta.cc