EvtSTSCP Class Reference

#include <EvtSTSCP.hh>

Inheritance diagram for EvtSTSCP:

Public Member Functions
	EvtSTSCP ()
virtual	~EvtSTSCP ()
void	getName (std::string &name)
EvtDecayBase *	clone ()
void	init ()
void	initProbMax ()
void	decay (EvtParticle *p)
Public Member Functions inherited from EvtDecayAmp
void	makeDecay (EvtParticle *p)
void	setWeight (double weight)
void	vertex (const EvtComplex &amp)
void	vertex (int i1, const EvtComplex &amp)
void	vertex (int i1, int i2, const EvtComplex &amp)
void	vertex (int i1, int i2, int i3, const EvtComplex &amp)
void	vertex (int *i1, const EvtComplex &amp)
virtual	~EvtDecayAmp ()
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 EvtDecayAmp
EvtAmp	_amp2
Protected Attributes inherited from EvtDecayBase
bool	_daugsDecayedByParentModel

Detailed Description

Definition at line 28 of file EvtSTSCP.hh.

Constructor & Destructor Documentation

EvtSTSCP()

EvtSTSCP::EvtSTSCP ( )

inline

Definition at line 31 of file EvtSTSCP.hh.

{}

Referenced by clone().

~EvtSTSCP()

EvtSTSCP::~EvtSTSCP ( )

virtual

Definition at line 36 of file EvtSTSCP.cc.

{}

Member Function Documentation

clone()

EvtDecayBase * EvtSTSCP::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 48 of file EvtSTSCP.cc.

{ return new EvtSTSCP; }

decay()

void EvtSTSCP::decay ( EvtParticle * p )

virtual

Implements EvtDecayBase.

Definition at line 62 of file EvtSTSCP.cc.

                                     {
 
  // added by Lange Jan4,2000
  static EvtId B0  = EvtPDL::getId( "B0" );
  static EvtId B0B = EvtPDL::getId( "anti-B0" );
 
  double t;
  EvtId  other_b;
 
  EvtParticle* t1;
  p->initializePhaseSpace( getNDaug(), getDaugs() );
  t1                = p->getDaug( 0 );
  EvtVector4R momt  = t1->getP4();
  EvtVector4R moms  = p->getDaug( 1 )->getP4();
  double      masst = t1->mass();
 
  EvtCPUtil::OtherB( p, t, other_b );
 
  double m_parent = p->mass();
 
  EvtComplex amp;
 
  EvtComplex A, Abar;
 
  A    = EvtComplex( getArg( 3 ) * cos( getArg( 4 ) ), getArg( 3 ) * sin( getArg( 4 ) ) );
  Abar = EvtComplex( getArg( 5 ) * cos( getArg( 6 ) ), getArg( 5 ) * sin( getArg( 6 ) ) );
 
  if ( other_b == B0B )
  {
    amp = A * cos( getArg( 1 ) * t / ( 2 * EvtConst::c ) ) +
          EvtComplex( cos( -2.0 * getArg( 0 ) ), sin( -2.0 * getArg( 0 ) ) ) * getArg( 2 ) *
              EvtComplex( 0.0, 1.0 ) * Abar * sin( getArg( 1 ) * t / ( 2 * EvtConst::c ) );
  }
  if ( other_b == B0 )
  {
    amp = A * EvtComplex( cos( 2.0 * getArg( 0 ) ), sin( 2.0 * getArg( 0 ) ) ) *
              EvtComplex( 0.0, 1.0 ) * sin( getArg( 1 ) * t / ( 2 * EvtConst::c ) ) +
          getArg( 2 ) * Abar * cos( getArg( 1 ) * t / ( 2 * EvtConst::c ) );
  }
 
  EvtVector4R p4_parent;
 
  p4_parent = momt + moms;
 
  double norm = masst * masst / ( m_parent * momt.d3mag() * momt.d3mag() );
 
  vertex( 0, amp * norm * t1->epsTensorParent( 0 ).cont1( p4_parent ) * p4_parent );
  vertex( 1, amp * norm * t1->epsTensorParent( 1 ).cont1( p4_parent ) * p4_parent );
  vertex( 2, amp * norm * t1->epsTensorParent( 2 ).cont1( p4_parent ) * p4_parent );
  vertex( 3, amp * norm * t1->epsTensorParent( 3 ).cont1( p4_parent ) * p4_parent );
  vertex( 4, amp * norm * t1->epsTensorParent( 4 ).cont1( p4_parent ) * p4_parent );
 
  return;
}

getName()

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

virtual

Implements EvtDecayBase.

Definition at line 38 of file EvtSTSCP.cc.

{ model_name = "STS_CP"; }

init()

void EvtSTSCP::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 50 of file EvtSTSCP.cc.

                    {
 
  // check that there are 7 arguments
  checkNArg( 7 );
  checkNDaug( 2 );
 
  checkSpinParent( EvtSpinType::SCALAR );
 
  checkSpinDaughter( 0, EvtSpinType::TENSOR );
  checkSpinDaughter( 1, EvtSpinType::SCALAR );
}

initProbMax()

void EvtSTSCP::initProbMax ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 40 of file EvtSTSCP.cc.

                           {
 
  // This is probably not quite right, but it should do as a start...
  // Anders
 
  setProbMax( 20 * ( getArg( 3 ) * getArg( 3 ) + getArg( 5 ) * getArg( 5 ) ) );
}

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

• EvtSTSCP.hh
• EvtSTSCP.cc