VVS Class Reference

#include <EvtVVS.hh>

Public Member Functions
	VVS (EvtVector4R pd1, EvtVector4R pd2, EvtVector4R pd3, double ResonanceMass, double ResonanceWidth, double r1, double r2, double phase1, double phase2)
double	Fij (int i, int j, double r)
double	R00 (double r)
EvtComplex	amps1 (int m, int i, int j)
double	amps ()
	VVS (EvtVector4R pd1, EvtVector4R pd2, EvtVector4R pd3, double ResonanceMass, double ResonanceWidth, double r1, double r2, double phase1, double phase2)
double	Fij (int i, int j, double r)
double	R00 (double r)
EvtComplex	amps1 (int m, int i, int j)
double	amps ()

Detailed Description

Definition at line 35 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtVVS.hh.

Constructor & Destructor Documentation

VVS() [1/2]

VVS::VVS ( EvtVector4R  pd1, EvtVector4R  pd2, EvtVector4R  pd3, double  ResonanceMass, double  ResonanceWidth, double  r1, double  r2, double  phase1, double  phase2  )

inline

Definition at line 37 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtVVS.hh.

                                                                                                                                                  {
////////////////////////////////////////////////////////////////////////////////////
//     For the decay 1-- -->R(1--) +Pseudoscalar-->3 Pseudoscalars
//  pd1,pd2,pd3: four momentum vector for three daughters
//   ResonanceMass,  ResonanceWidth : resonance parameter for intermediate state R(1--)
//  r1,r2      : the relative coupling strength for two resonaces R R.P.T another R
//  phase1,phase2: the relatev phase of two phases R.P.T another R
///////////////////////////////////////////////////////////////////////////////////////////
 _pd[0]=pd1;
 _pd[1]=pd2;
 _pd[2]=pd3;
 _res[0]=ResonanceMass;
 _res[1]=ResonanceWidth;
 _par[0]=r1;
 _par[1]=phase1;
 _par[2]=r2;
 _par[3]=phase2;
 }

VVS() [2/2]

VVS::VVS ( EvtVector4R  pd1, EvtVector4R  pd2, EvtVector4R  pd3, double  ResonanceMass, double  ResonanceWidth, double  r1, double  r2, double  phase1, double  phase2  )

inline

Definition at line 37 of file BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtVVS.hh.

                                                                                                                                                  {
////////////////////////////////////////////////////////////////////////////////////
//     For the decay 1-- -->R(1--) +Pseudoscalar-->3 Pseudoscalars
//  pd1,pd2,pd3: four momentum vector for three daughters
//   ResonanceMass,  ResonanceWidth : resonance parameter for intermediate state R(1--)
//  r1,r2      : the relative coupling strength for two resonaces R R.P.T another R
//  phase1,phase2: the relatev phase of two phases R.P.T another R
///////////////////////////////////////////////////////////////////////////////////////////
 _pd[0]=pd1;
 _pd[1]=pd2;
 _pd[2]=pd3;
 _res[0]=ResonanceMass;
 _res[1]=ResonanceWidth;
 _par[0]=r1;
 _par[1]=phase1;
 _par[2]=r2;
 _par[3]=phase2;
 }

Member Function Documentation

amps() [1/2]

double VVS::amps

(

)

Definition at line 71 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtVVS.cc.

                 {
 double r1=_par[0];
 double phase1=_par[1];
 double r2=_par[2];
 double phase2=_par[3];
 double temp=0.0;
 int m;
 for(m=-1;m<=1;m+=2) temp=temp+pow(abs(r1*exp(EvtComplex(0,phase1))*amps1(m,0,1)+r2*exp(EvtComplex(0,phase2))*amps1(m,0,2)+amps1(m,1,2)),2.);
 return temp;
 } 

Referenced by EvtRhoPi::AmplitudeSquare().

amps() [2/2]

double VVS::amps

(

)

amps1() [1/2]

EvtComplex VVS::amps1	(	int	m,
		int	i,
		int	j
	)

Definition at line 49 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtVVS.cc.

                                           {
   double mrho=_res[0];
   double wrho=_res[1];
   double s;
   EvtComplex img(0.0,1.0),dpro;
   EvtVector4R prho;
   prho=_pd[i]+_pd[j];
   s=prho.mass2();
   dpro=s-mrho*mrho+img*sqrt(s)*wrho;
   EvtHelSys angles(prho,_pd[i]),labAngles;
   double theta,phi,ct1,st1,phi1,st,ct;
   double rpp=angles.getHelAng(0);
   theta=angles.getHelAng(1);
   phi  =angles.getHelAng(2);
   ct1 =labAngles.Angles(prho,1);
   phi1=labAngles.Angles(prho,2);
   int lamb;
   EvtComplex temp(0.0,0.0);
   for(lamb=-1;lamb<=1;lamb++) temp=temp+Fij(lamb,0,prho.d3mag())*Djmn(1,m,lamb,phi1,ct1,0.0)/dpro*R00(rpp)*Djmn(1,lamb,0,phi,theta,0.0); 
    return temp;
  }

Referenced by amps().

amps1() [2/2]

EvtComplex VVS::amps1	(	int	m,
		int	i,
		int	j
	)

Fij() [1/2]

double VVS::Fij	(	int	i,
		int	j,
		double	r
	)

Definition at line 40 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtVVS.cc.

                                        {
   double mpsi=(_pd[0]+_pd[1]+_pd[2]).mass();
   double temp=mpsi*r;
   if(i==0&& j==0) return 0;
   if(i==1&& j==0) return temp;
   if(i==-1&& j==0) return -temp;
 
  }

Referenced by amps1().

Fij() [2/2]

double VVS::Fij	(	int	i,
		int	j,
		double	r
	)

R00() [1/2]

double VVS::R00

(

double

r

)

Definition at line 36 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtVVS.cc.

                         {
  return r;
  }

Referenced by amps1().

R00() [2/2]

double VVS::R00

(

double

r

)

---

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

• bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtVVS.hh
• BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtVVS.hh
• bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtVVS.cc
• BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtVVS.cc