EvtSVVCPLH Class Reference

#include <EvtSVVCPLH.hh>

Inheritance diagram for EvtSVVCPLH:

Public Member Functions
	EvtSVVCPLH ()
virtual	~EvtSVVCPLH ()
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 void	getName (std::string &name)=0
virtual void	decay (EvtParticle *p)=0
virtual void	makeDecay (EvtParticle *p)=0
virtual EvtDecayBase *	clone ()=0
virtual void	init ()
virtual void	initProbMax ()
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 EvtSVVCPLH.hh.

Constructor & Destructor Documentation

EvtSVVCPLH()

EvtSVVCPLH::EvtSVVCPLH ( )

inline

Definition at line 32 of file EvtSVVCPLH.hh.

{}

Referenced by clone().

~EvtSVVCPLH()

EvtSVVCPLH::~EvtSVVCPLH ( )

virtual

Definition at line 37 of file EvtSVVCPLH.cc.

{}

Member Function Documentation

clone()

EvtDecayBase * EvtSVVCPLH::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 46 of file EvtSVVCPLH.cc.

                               {
 
  return new EvtSVVCPLH;
 
}

decay()

void EvtSVVCPLH::decay ( EvtParticle *  p )

virtual

Implements EvtDecayBase.

Definition at line 74 of file EvtSVVCPLH.cc.

                                     {
 
  //added by Lange Jan4,2000
  static EvtId BS0=EvtPDL::getId("B_s0");
  static EvtId BSB=EvtPDL::getId("anti-B_s0");
 
  double t;
  EvtId other_b;
 
  EvtCPUtil::OtherB(p,t,other_b);
 
  EvtComplex G0P,G1P,G1M;
  
  G1P=EvtComplex(getArg(3)*cos(getArg(4)),getArg(3)*sin(getArg(4)));
  G0P=EvtComplex(getArg(5)*cos(getArg(6)),getArg(5)*sin(getArg(6)));
  G1M=EvtComplex(getArg(7)*cos(getArg(8)),getArg(7)*sin(getArg(8)));
 
  EvtComplex lambda_km=EvtComplex(cos(2*getArg(0)),sin(2*getArg(0)));
 
  double cdmt=cos(getArg(1)*t/(2*EvtConst::c));
  double sdmt=sin(getArg(1)*t/(2*EvtConst::c));
 
  EvtComplex cG0P,cG1P,cG1M;
 
  static double ctauL=EvtPDL::getctau(EvtPDL::getId("B_s0L"));
  static double ctauH=EvtPDL::getctau(EvtPDL::getId("B_s0H"));
  static double ctau=ctauL<ctauH?ctauH:ctauL;
 
 
  //I'm not sure if the fabs() is right when t can be
  //negative as in the case of Bs produced coherently.
  double pt=1;
  double mt=exp(-fabs(t*(ctauL-ctauH)/(ctauL*ctauH)));
 
  if (other_b==BSB){
    cG0P=pt*G0P*(cdmt+lambda_km*EvtComplex(0.0,getArg(2)*sdmt));
    cG1P=pt*G1P*(cdmt+lambda_km*EvtComplex(0.0,getArg(2)*sdmt));
    cG1M=mt*G1M*(cdmt-lambda_km*EvtComplex(0.0,getArg(2)*sdmt));
  }
  else if (other_b==BS0){
    cG0P=pt*G0P*(cdmt+(1.0/lambda_km)*EvtComplex(0.0,getArg(2)*sdmt));
    cG1P=pt*G1P*(cdmt+(1.0/lambda_km)*EvtComplex(0.0,getArg(2)*sdmt));
    cG1M=-mt*G1M*(cdmt-(1.0/lambda_km)*EvtComplex(0.0,getArg(2)*sdmt));
  }
  else{
    report(ERROR,"EvtGen") << "other_b was not BSB or BS0!"<<endl;
    ::abort();
  }
 
   EvtComplex A0,AP,AM;
 
   A0=cG0P/sqrt(2.0);
   AP=(cG1P+cG1M)/sqrt(2.0); 
   AM=(cG1P-cG1M)/sqrt(2.0); 
 
   EvtSVVHelAmp::SVVHel(p,_amp2,getDaug(0),getDaug(1),AP,A0,AM);
 
  return ;
}

getName()

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

virtual

Implements EvtDecayBase.

Definition at line 39 of file EvtSVVCPLH.cc.

                                             {
 
  model_name="SVV_CPLH";     
 
}

init()

void EvtSVVCPLH::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 52 of file EvtSVVCPLH.cc.

                     {
 
  // check that there are 9 arguments
  checkNArg(9);
  checkNDaug(2);
 
  checkSpinParent(EvtSpinType::SCALAR);
 
  checkSpinDaughter(0,EvtSpinType::VECTOR);
  checkSpinDaughter(1,EvtSpinType::VECTOR);
 
}

initProbMax()

void EvtSVVCPLH::initProbMax ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 65 of file EvtSVVCPLH.cc.

                            {
 
  //This is probably not quite right, but it should do as a start...
  //Anders
 
  setProbMax(2*(getArg(3)*getArg(3)+getArg(5)*getArg(5)+getArg(7)*getArg(7)));
 
}

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

• EvtSVVCPLH.hh
• EvtSVVCPLH.cc