EvtEDM Class Reference

#include <EvtEDM.hh>

Inheritance diagram for EvtEDM:

Public Member Functions
	EvtEDM ()
virtual	~EvtEDM ()
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 22 of file EvtEDM.hh.

Constructor & Destructor Documentation

EvtEDM()

EvtEDM::EvtEDM ( )

inline

Definition at line 25 of file EvtEDM.hh.

{}

Referenced by clone().

~EvtEDM()

EvtEDM::~EvtEDM ( )

virtual

Definition at line 29 of file EvtEDM.cc.

{}

Member Function Documentation

clone()

EvtDecayBase * EvtEDM::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 33 of file EvtEDM.cc.

{ return new EvtEDM; }

decay()

void EvtEDM::decay ( EvtParticle * p )

virtual

Implements EvtDecayBase.

Definition at line 49 of file EvtEDM.cc.

                                   {
 
  p->initializePhaseSpace( getNDaug(), getDaugs() );
 
  EvtParticle *l1, *l2;
  l1 = p->getDaug( 0 );
  l2 = p->getDaug( 1 );
 
  double     magtau = getArg( 0 );
  double     phstau = getArg( 1 );
  double     mage   = getArg( 2 );
  double     phse   = getArg( 3 );
  EvtComplex ctau( magtau * cos( phstau ), magtau * sin( phstau ) );
  EvtComplex ce( mage * cos( phse ), mage * sin( phse ) );
 
  EvtTensor4C l11, l12, l21, l22;
  l11 = EvtLeptonTg5Current( l1->spParent( 0 ), l2->spParent( 0 ) );
  l12 = EvtLeptonTg5Current( l1->spParent( 0 ), l2->spParent( 1 ) );
  l21 = EvtLeptonTg5Current( l1->spParent( 1 ), l2->spParent( 0 ) );
  l22 = EvtLeptonTg5Current( l1->spParent( 1 ), l2->spParent( 1 ) );
 
  EvtVector4C eps0  = p->eps( 0 );
  EvtVector4C eps1  = p->eps( 1 );
  EvtVector4C eps2  = p->eps( 2 );
  EvtVector4R parp4 = p->getP4();
 
  EvtTensor4C p4eps0 = directProd( eps0, parp4 );
  EvtTensor4C p4eps1 = directProd( eps1, parp4 );
  EvtTensor4C p4eps2 = directProd( eps2, parp4 );
 
  double M2 = p->mass();
  M2 *= M2;
  double m2 = l1->mass();
  m2 *= m2;
 
  double     norm     = 1.0 / sqrt( 2 * M2 + 4 * m2 - 4 * m2 * m2 / M2 );
  EvtComplex norm_edm = norm * ctau;
  EvtComplex norm_e   = norm * ce;
 
  // for ee->gamma* ->ll pair without EDM contributions
  EvtVector4C L11, L12, L21, L22;
  L11 = EvtLeptonVCurrent( l1->spParent( 0 ), l2->spParent( 0 ) );
  L12 = EvtLeptonVCurrent( l1->spParent( 0 ), l2->spParent( 1 ) );
  L21 = EvtLeptonVCurrent( l1->spParent( 1 ), l2->spParent( 0 ) );
  L22 = EvtLeptonVCurrent( l1->spParent( 1 ), l2->spParent( 1 ) );
 
  EvtComplex A000, A001, A010, A011, A100, A101, A110, A111, A200, A201, A210, A211;
  A000 = norm_e * ( eps0 * L11 );
  A001 = norm_e * ( eps0 * L12 );
  A010 = norm_e * ( eps0 * L21 );
  A011 = norm_e * ( eps0 * L22 );
 
  A100 = norm_e * ( eps1 * L11 );
  A101 = norm_e * ( eps1 * L12 );
  A110 = norm_e * ( eps1 * L21 );
  A111 = norm_e * ( eps1 * L22 );
 
  A200 = norm_e * ( eps2 * L11 );
  A201 = norm_e * ( eps2 * L12 );
  A210 = norm_e * ( eps2 * L21 );
  A211 = norm_e * ( eps2 * L22 );
 
  vertex( 0, 0, 0, norm_edm * cont( p4eps0, l11 ) + A000 );
  vertex( 0, 0, 1, norm_edm * cont( p4eps0, l12 ) + A001 );
  vertex( 0, 1, 0, norm_edm * cont( p4eps0, l21 ) + A010 );
  vertex( 0, 1, 1, norm_edm * cont( p4eps0, l22 ) + A011 );
 
  vertex( 1, 0, 0, norm_edm * cont( p4eps1, l11 ) + A100 );
  vertex( 1, 0, 1, norm_edm * cont( p4eps1, l12 ) + A101 );
  vertex( 1, 1, 0, norm_edm * cont( p4eps1, l21 ) + A110 );
  vertex( 1, 1, 1, norm_edm * cont( p4eps1, l22 ) + A111 );
 
  vertex( 2, 0, 0, norm_edm * cont( p4eps2, l11 ) + A200 );
  vertex( 2, 0, 1, norm_edm * cont( p4eps2, l12 ) + A201 );
  vertex( 2, 1, 0, norm_edm * cont( p4eps2, l21 ) + A210 );
  vertex( 2, 1, 1, norm_edm * cont( p4eps2, l22 ) + A211 );
 
  return;
}

getName()

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

virtual

Implements EvtDecayBase.

Definition at line 31 of file EvtEDM.cc.

{ model_name = "EDM"; }

init()

void EvtEDM::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 35 of file EvtEDM.cc.

                  {
 
  // check that there are 0 arguments
  checkNArg( 4 ); // mag(d_tau) arg(d_tau) mag(g_e)  arg(g_e)
  checkNDaug( 2 );
 
  checkSpinParent( EvtSpinType::VECTOR );
 
  checkSpinDaughter( 0, EvtSpinType::DIRAC );
  checkSpinDaughter( 1, EvtSpinType::DIRAC );
}

initProbMax()

void EvtEDM::initProbMax ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 47 of file EvtEDM.cc.

{ setProbMax( 1.0 ); }

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

• EvtEDM.hh
• EvtEDM.cc