EvtDTopiEtaEta Class Reference

#include <EvtDTopiEtaEta.hh>

Inheritance diagram for EvtDTopiEtaEta:

Public Member Functions
	EvtDTopiEtaEta ()
virtual	~EvtDTopiEtaEta ()
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 EvtDTopiEtaEta.hh.

Constructor & Destructor Documentation

EvtDTopiEtaEta()

EvtDTopiEtaEta::EvtDTopiEtaEta ( )

inline

Definition at line 11 of file EvtDTopiEtaEta.hh.

{}

Referenced by clone().

~EvtDTopiEtaEta()

EvtDTopiEtaEta::~EvtDTopiEtaEta ( )

virtual

Definition at line 32 of file EvtDTopiEtaEta.cc.

{}

Member Function Documentation

clone()

EvtDecayBase * EvtDTopiEtaEta::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 36 of file EvtDTopiEtaEta.cc.

{ return new EvtDTopiEtaEta; }

decay()

void EvtDTopiEtaEta::decay ( EvtParticle * p )

virtual

Implements EvtDecayBase.

Definition at line 90 of file EvtDTopiEtaEta.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 EvtDTopiEtaEta::getName ( std::string & name )

virtual

Implements EvtDecayBase.

Definition at line 34 of file EvtDTopiEtaEta.cc.

{ model_name = "DTopiEtaEta"; }

init()

void EvtDTopiEtaEta::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 38 of file EvtDTopiEtaEta.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 );
 
  rho[0] = 1.0; // a0+ eta
  phi[0] = 0.0;
  rho[1] = 1.0; // a0+ eta
  phi[1] = 0.0;
 
  // cout << "Initializing DTopiEtaEta" << endl;
  // for (int i=0; i<2; i++) {
  //    cout << i << " rho= " << rho[i] << " phi= " << phi[i] << endl;
  // }
  mrho = 0.77511;
  ma0  = 1.0486;
  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 EvtDTopiEtaEta::initProbMax ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 88 of file EvtDTopiEtaEta.cc.

{ setProbMax( 62.5 ); }

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

• EvtDTopiEtaEta.hh
• EvtDTopiEtaEta.cc