EvtSVSNONCPEIGEN Class Reference

#include <EvtSVSNONCPEIGEN.hh>

Inheritance diagram for EvtSVSNONCPEIGEN:

Public Member Functions
	EvtSVSNONCPEIGEN ()
virtual	~EvtSVSNONCPEIGEN ()
void	getName (std::string &name)
EvtDecayBase *	clone ()
void	initProbMax ()
void	init ()
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 EvtSVSNONCPEIGEN.hh.

Constructor & Destructor Documentation

EvtSVSNONCPEIGEN()

EvtSVSNONCPEIGEN::EvtSVSNONCPEIGEN ( )

inline

Definition at line 31 of file EvtSVSNONCPEIGEN.hh.

{}

Referenced by clone().

~EvtSVSNONCPEIGEN()

EvtSVSNONCPEIGEN::~EvtSVSNONCPEIGEN ( )

virtual

Definition at line 35 of file EvtSVSNONCPEIGEN.cc.

{}

Member Function Documentation

clone()

EvtDecayBase * EvtSVSNONCPEIGEN::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 39 of file EvtSVSNONCPEIGEN.cc.

{ return new EvtSVSNONCPEIGEN; }

decay()

void EvtSVSNONCPEIGEN::decay ( EvtParticle * p )

virtual

Implements EvtDecayBase.

Definition at line 74 of file EvtSVSNONCPEIGEN.cc.

                                             {
 
  // added by Lange Jan4,2000
  static EvtId B0  = EvtPDL::getId( "B0" );
  static EvtId B0B = EvtPDL::getId( "anti-B0" );
 
  double t;
  EvtId  other_b;
  EvtId  daugs[2];
 
  // MB: flip selects the final of the decay
  int flip = ( ( p->getId() == B0 ) ? 0 : 1 );
  daugs[0] = getDaug( 0 );
  daugs[1] = getDaug( 1 );
  p->initializePhaseSpace( 2, daugs );
 
  EvtCPUtil::OtherB( p, t, other_b, 0.5 );
 
  EvtComplex amp;
  double     dmt2 = ( _dm * t ) / ( 2 * EvtConst::c );
  EvtComplex ePlusIPhi( cos( _phickm ), sin( _phickm ) );
  EvtComplex eMinusIPhi( cos( -_phickm ), -sin( _phickm ) );
 
  // flip == 0 : D-rho+
  // flip == 1 : D+rho-
 
  if ( !flip )
  {
    if ( other_b == B0B )
    {
      // At t=0 we have a B0
      amp = cos( dmt2 ) * _A_f + eMinusIPhi * EvtComplex( 0.0, sin( dmt2 ) ) * _Abar_f;
    }
    if ( other_b == B0 )
    {
      // At t=0 we have a B0bar
      amp = ePlusIPhi * EvtComplex( 0.0, sin( dmt2 ) ) * _A_f + cos( dmt2 ) * _Abar_f;
    }
  }
  else
  {
    if ( other_b == B0B )
    {
      // At t=0 we have a B0
      amp = cos( dmt2 ) * _A_fbar + eMinusIPhi * EvtComplex( 0.0, sin( dmt2 ) ) * _Abar_fbar;
    }
    if ( other_b == B0 )
    {
      // At t=0 we have a B0bar
      amp = ePlusIPhi * EvtComplex( 0.0, sin( dmt2 ) ) * _A_fbar + cos( dmt2 ) * _Abar_fbar;
    }
  }
 
  EvtParticle* v;
  v = p->getDaug( 0 );
 
  EvtVector4R momv      = p->getDaug( 0 )->getP4();
  EvtVector4R moms      = p->getDaug( 1 )->getP4();
  EvtVector4R p4_parent = momv + moms;
 
  double norm = momv.mass() / ( momv.d3mag() * p->mass() );
 
  vertex( 0, amp * norm * p4_parent * ( v->epsParent( 0 ) ) );
  vertex( 1, amp * norm * p4_parent * ( v->epsParent( 1 ) ) );
  vertex( 2, amp * norm * p4_parent * ( v->epsParent( 2 ) ) );
 
  return;
}

getName()

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

virtual

Implements EvtDecayBase.

Definition at line 37 of file EvtSVSNONCPEIGEN.cc.

{ model_name = "SVS_NONCPEIGEN"; }

init()

void EvtSVSNONCPEIGEN::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 41 of file EvtSVSNONCPEIGEN.cc.

                            {
 
  // check that there are 11 arguments
  checkNArg( 11, 7 );
  checkNDaug( 2 );
 
  checkSpinDaughter( 0, EvtSpinType::VECTOR );
  checkSpinDaughter( 1, EvtSpinType::SCALAR );
 
  _dm     = getArg( 1 );
  _phickm = 2 * getArg( 0 ) + getArg( 2 );
 
  _A_f    = EvtComplex( getArg( 3 ) * cos( getArg( 4 ) ), getArg( 3 ) * sin( getArg( 4 ) ) );
  _Abar_f = EvtComplex( getArg( 5 ) * cos( getArg( 6 ) ), getArg( 5 ) * sin( getArg( 6 ) ) );
 
  _A_fbar    = _Abar_f;
  _Abar_fbar = _A_f;
 
  if ( getNArg() == 11 )
  {
    _A_fbar = EvtComplex( getArg( 7 ) * cos( getArg( 8 ) ), getArg( 7 ) * sin( getArg( 8 ) ) );
    _Abar_fbar =
        EvtComplex( getArg( 9 ) * cos( getArg( 10 ) ), getArg( 9 ) * sin( getArg( 10 ) ) );
  }
}

initProbMax()

void EvtSVSNONCPEIGEN::initProbMax ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 67 of file EvtSVSNONCPEIGEN.cc.

                                   {
  double theProbMax = abs( _A_f ) * abs( _A_f ) + abs( _Abar_f ) * abs( _Abar_f ) +
                      abs( _A_fbar ) * abs( _A_fbar ) + abs( _Abar_fbar ) * abs( _Abar_fbar );
 
  setProbMax( theProbMax );
}

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

• EvtSVSNONCPEIGEN.hh
• EvtSVSNONCPEIGEN.cc