EvtAngH2 Class Reference

#include <EvtAngH2.hh>

Inheritance diagram for EvtAngH2:

Public Member Functions
	EvtAngH2 ()
virtual	~EvtAngH2 ()
void	getName (std::string &name)
EvtDecayBase *	clone ()
void	initProbMax ()
void	init ()
void	decay (EvtParticle *p)
const char *	setFileName ()
const char *	setHpoint ()
Public Member Functions inherited from EvtDecayIncoherent
void	makeDecay (EvtParticle *p)
virtual	~EvtDecayIncoherent ()
void	setDaughterSpinDensity (int daughter)
int	isDaughterSpinDensitySet (int daughter)
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 EvtDecayBase
bool	_daugsDecayedByParentModel

Detailed Description

Definition at line 30 of file EvtAngH2.hh.

Constructor & Destructor Documentation

EvtAngH2()

EvtAngH2::EvtAngH2 ( )

inline

Definition at line 34 of file EvtAngH2.hh.

{}

Referenced by clone().

~EvtAngH2()

EvtAngH2::~EvtAngH2 ( )

virtual

Definition at line 59 of file EvtAngH2.cc.

{}

Member Function Documentation

clone()

EvtDecayBase * EvtAngH2::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 67 of file EvtAngH2.cc.

                             {
 
  return new EvtAngH2;
 
}

decay()

void EvtAngH2::decay ( EvtParticle *  p )

virtual

Implements EvtDecayBase.

Definition at line 86 of file EvtAngH2.cc.

                                    {
 
 const char* fl=setFileName();
 const char* hp=setHpoint();
 int* dp;
 
 TFile f(fl);
 TH2F *hid = (TH2F*)f.Get(hp);
 TAxis* xaxis = hid->GetXaxis();
 TAxis* yaxis = hid->GetYaxis();
 
 int    BINSx  =xaxis->GetLast();
 int    BINSy  =yaxis->GetLast();
 int    BINS   =BINSx*BINSy;
 double yvalue,ymax=0.0;
 int i,j,binxy;
 
 for(i=1;i<BINSx+1;i++){
     for(j=1;j<BINSy+1;j++){
      binxy=hid->GetBin(i,j);
      yvalue=hid->GetBinContent(binxy);
//      cout<<"binxy,yvalue = "<<binxy<<"; "<<yvalue<<endl;
      if(yvalue>ymax) ymax=yvalue;
     }
 }
 
loop:
  p->initializePhaseSpace(getNDaug(),getDaugs());
 
  EvtParticle *id1,*id2,*id3,*id4,*s1;
  EvtVector4R pd1,pd2,pd3,pd4,ps;
  double xcostheta,ycostheta;
 
  id1 =p->getDaug(0); 
  id2 =p->getDaug(1); 
  id3 =p->getDaug(2);
  
 
  pd1 =id1->getP4Lab();
  pd2 =id2->getP4Lab();
  pd3 =id3->getP4Lab();
 
  xcostheta=pd1.get(3)/pd1.d3mag();
  ycostheta=pd2.get(3)/pd2.d3mag();
  if( EvtPDL::name(p->getDaug(0)->getId()) == EvtPDL::name(p->getDaug(1)->getId()) ){
    if(pd1.get(0)>pd2.get(0)){
    xcostheta=pd2.get(3)/pd2.d3mag();
    ycostheta=pd1.get(3)/pd1.d3mag();
    }
  }
  int xbin = hid->GetXaxis()->FindBin(xcostheta);
  int ybin = hid->GetYaxis()->FindBin(ycostheta);
  int xybin= hid->GetBin(xbin,ybin);
  double zvalue=hid->GetBinContent(xybin);
  double xratio=zvalue/ymax;
//  cout<<"***************zvalue,ymax,xratio= "<<zvalue<<"; "<<ymax<<"; "<<xratio<<endl;
  double rd1=EvtRandom::Flat(0.0, 1.0); 
  if(rd1>xratio) goto loop;
  return ;
}

getName()

void EvtAngH2::getName ( std::string &  name )

virtual

Implements EvtDecayBase.

Definition at line 61 of file EvtAngH2.cc.

                                           {
 
  model_name="AngH2";     
 
}

init()

void EvtAngH2::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 74 of file EvtAngH2.cc.

                   {
 
  // check that there are 4 arguments: Invariant mass part. Index: i,j, histor. file name, Hid 
  checkNArg(0);
  EvtSpinType::spintype parenttype = EvtPDL::getSpinType(getParentId());
}

initProbMax()

void EvtAngH2::initProbMax ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 80 of file EvtAngH2.cc.

                          {
 
  noProbMax();
 
}

setFileName()

const char * EvtAngH2::setFileName

(

)

Definition at line 10 of file UserAngH2.cc.

                                  {
  const char* filename;
  filename="AngH2.root";  //specify the root histor. name
  return filename;
}

Referenced by decay().

setHpoint()

const char * EvtAngH2::setHpoint

(

)

Definition at line 16 of file UserAngH2.cc.

                                {
  const char* hpoint;
//specify scatter plot id, x-axis is the angular distribution(in Lab system) for daugher(0) 
//, y-axix is the  the angular distribution(in Lab system) for daugher(1). They are corrected by detection efficiency 
  hpoint="AngScatter";   
  return hpoint;
} 

Referenced by decay().

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

• EvtAngH2.hh
• EvtAngH2.cc
• UserAngH2.cc