EvtHAngSam3 Class Reference

#include <EvtHAngSam3.hh>

Inheritance diagram for EvtHAngSam3:

Public Member Functions
	EvtHAngSam3 ()
virtual	~EvtHAngSam3 ()
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 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 29 of file EvtHAngSam3.hh.

Constructor & Destructor Documentation

EvtHAngSam3()

EvtHAngSam3::EvtHAngSam3 ( )

inline

Definition at line 32 of file EvtHAngSam3.hh.

{}

Referenced by clone().

~EvtHAngSam3()

EvtHAngSam3::~EvtHAngSam3 ( )

virtual

Definition at line 56 of file EvtHAngSam3.cc.

{}

Member Function Documentation

clone()

EvtDecayBase * EvtHAngSam3::clone ( )

virtual

Implements EvtDecayBase.

Definition at line 60 of file EvtHAngSam3.cc.

{ return new EvtHAngSam3; }

decay()

void EvtHAngSam3::decay ( EvtParticle * p )

virtual

Implements EvtDecayBase.

Definition at line 70 of file EvtHAngSam3.cc.

                                        {
 
  const char* fl = setFileName();
  const char* hp = setHpoint();
  int*        dp;
 
  TFile  f( fl );
  TH1F*  hid   = (TH1F*)f.Get( hp );
  TAxis* xaxis = hid->GetXaxis();
 
  double        BLE  = xaxis->GetBinLowEdge( 1 );
  int           BINS = xaxis->GetLast();
  double        yvalue[20000];
  static double ymax = 0.0;
  int           i;
  double        Ntotal = 0, yc[20000];
  static int    icount = 0;
 
  if ( icount == 0 )
  {
    for ( i = 1; i < BINS + 1; i++ )
    {
      yvalue[i] = hid->GetBinContent( i );
      if ( yvalue[i] > ymax ) ymax = yvalue[i];
    }
    icount++;
    ymax = ymax * 1.2;
  }
 
loop:
  p->initializePhaseSpace( getNDaug(), getDaugs() );
 
  EvtParticle *d1, *d2, *d3;
  EvtVector4R  pd1, pd2, pd3, pp, nor;
  double       costheta, cosphi;
 
  d1           = p->getDaug( 0 );
  d2           = p->getDaug( 1 );
  pd1          = d1->getP4();
  pd2          = d2->getP4();
  pp           = p->getP4();
  double ppmag = pp.d3mag();
  nor          = pd1.cross( pd2 );
 
  if ( ppmag < 0.0001 ) { costheta = nor.get( 3 ) / nor.d3mag(); }
  else { costheta = nor.dot( pp ) / nor.d3mag() / pp.d3mag(); }
 
  int    xbin   = hid->FindBin( costheta );
  double xratio = ( hid->GetBinContent( xbin ) ) / ymax;
 
  double rd1 = EvtRandom::Flat( 0.0, 1.0 );
  if ( rd1 > xratio ) goto loop;
  return;
}

getName()

void EvtHAngSam3::getName ( std::string & name )

virtual

Implements EvtDecayBase.

Definition at line 58 of file EvtHAngSam3.cc.

{ model_name = "HAngSam3"; }

init()

void EvtHAngSam3::init ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 62 of file EvtHAngSam3.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 EvtHAngSam3::initProbMax ( )

virtual

Reimplemented from EvtDecayBase.

Definition at line 68 of file EvtHAngSam3.cc.

{ noProbMax(); }

setFileName()

const char * EvtHAngSam3::setFileName

(

)

Definition at line 11 of file UserHAngSam3.cc.

                                     {
  const char* filename;
  filename = "HAngSam3.root";
  // specify the root histor. name
  return filename;
}

Referenced by decay().

setHpoint()

const char * EvtHAngSam3::setHpoint

(

)

Definition at line 18 of file UserHAngSam3.cc.

                                   {
  const char* hpoint;
  hpoint = "costheta"; // specify the histor. id
  return hpoint;
}

Referenced by decay().

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

• EvtHAngSam3.hh
• EvtHAngSam3.cc
• UserHAngSam3.cc