EvtDToPiPi0Etap Class Reference

#include <EvtDToPiPi0Etap.hh>

Inheritance diagram for EvtDToPiPi0Etap:

Public Member Functions
	EvtDToPiPi0Etap ()
virtual	~EvtDToPiPi0Etap ()
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 9 of file EvtDToPiPi0Etap.hh.

Constructor & Destructor Documentation

EvtDToPiPi0Etap()

EvtDToPiPi0Etap::EvtDToPiPi0Etap ( )

inline

Definition at line 12 of file EvtDToPiPi0Etap.hh.

{}

Referenced by clone().

~EvtDToPiPi0Etap()

EvtDToPiPi0Etap::~EvtDToPiPi0Etap ( )

virtual

Definition at line 32 of file EvtDToPiPi0Etap.cc.

{}

Member Function Documentation

clone()

EvtDecayBase * EvtDToPiPi0Etap::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 36 of file EvtDToPiPi0Etap.cc.

{ return new EvtDToPiPi0Etap; }

decay()

void EvtDToPiPi0Etap::decay ( EvtParticle * p )

virtual

Implements EvtDecayBase.

Definition at line 87 of file EvtDToPiPi0Etap.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;
                  int g0[2]={1,0};
                  int spin[2]={1,2};
                  int nstates=2;
 
                  calEva(P1, P2, P3, mass, width, rho, phi, g0, spin, modetype, nstates,
     value); if(value>maxprob) { maxprob=value; cout << "ir = " << ir << " maxProb= " << value
     << endl;
                  }
          }
          cout << "The 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;
  int    g0[2]   = { 1, 0 };
  int    spin[2] = { 1, 2 };
  int    nstates = 2;
  calEva( P1, P2, P3, mass, width, rho, phi, g0, spin, modetype, nstates, value );
 
  setProb( value );
  return;
}

getName()

void EvtDToPiPi0Etap::getName ( std::string & name )

virtual

Implements EvtDecayBase.

Definition at line 34 of file EvtDToPiPi0Etap.cc.

{ model_name = "DToPiPi0Etap"; }

init()

void EvtDToPiPi0Etap::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 38 of file EvtDToPiPi0Etap.cc.

                           {
 
  checkNArg( 0 );
  checkNDaug( 3 );
  checkSpinParent( EvtSpinType::SCALAR );
  checkSpinDaughter( 0, EvtSpinType::SCALAR );
  checkSpinDaughter( 1, EvtSpinType::SCALAR );
  checkSpinDaughter( 2, EvtSpinType::SCALAR );
 
  modetype[0] = 12;
  modetype[1] = 12;
  rho[0]      = 1.0; // rho+
  phi[0]      = 0.0;
  rho[1]      = 8.3996e+00; // (Pi+Pi0) D-wave
  phi[1]      = 4.8088e+00;
 
  mass[0]  = 0.77511;
  width[0] = 0.1491;
 
  mass[1]  = 0.27454719;
  width[1] = 0.1491; // TBD
 
  massDp = 1.86966;
  massD0 = 1.86484;
 
  massEtap = 0.95778;
  massPip  = 0.13957;
  massPi0  = 0.13498;
 
  mathPi = 3.1415926;
 
  // GS
  GS1 = 0.6366197830;
  GS2 = 0.0186018247;
  GS3 = 0.1591549431; // 1/(2*mathPi)
  GS4 = 0.0062006081; // massPip*massPip/mathPi
 
  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 EvtDToPiPi0Etap::initProbMax ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 83 of file EvtDToPiPi0Etap.cc.

                                  {
  setProbMax( 48.9 ); // The Max Prob = 48.895731256754906724
}

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

• EvtDToPiPi0Etap.hh
• EvtDToPiPi0Etap.cc