rb Namespace Reference

Classes
class	TDFun
class	TPhoton
class	TPhotonD

Functions
double	Gamma (const double Q2, const double M2, const double G, const double mkpp2, const double mkmp2)
complex_t	R (double Q2, double M2, double G, double Mp2, double Mm2)
TLorentzVector	PseudoScalars3 (const TLorentzVector &qp, const TLorentzVector &qm, const TLorentzVector &q0)

Variables
const double	me = 0.51099907
const double	mpi = 139.57018
const double	mpi0 = 134.9766
const double	meta = 547.853
const double	Metap = 957.66
const double	Getap = 0.205
const double	Mrho = 775.5
const double	Grho = 149.4
const double	mkc = 493.677
const double	mk0 = 497.614
const double	Mphi = 1019.33
const double	Gphi = 4.26
const double	Meta = 547.853
const double	Mrhop = 1.35*1000
const double	Grhop = 0.3*1000
const double	Mrhopp = 1.7*1000
const double	Grhopp = 0.235*1000
const double	Mrhoppp = 2150
const double	Grhoppp = 350
const double	Momega = 0.782*1000
const double	Gomega = 0.0085*1000
const double	me2 = me*me
const double	mpi2 = mpi*mpi
const double	mpi02 = mpi0*mpi0
const double	Mrho2 = Mrho*Mrho
const double	Mrhop2 = Mrhop*Mrhop
const double	Mrhopp2 = Mrhopp*Mrhopp
const double	Mrhoppp2 = Mrhoppp*Mrhoppp
const double	Momega2 = Momega*Momega
const double	mkc2 = mkc*mkc
const double	mk02 = mk0*mk0
const double	Mphi2 = Mphi*Mphi
const double	Meta2 = Meta*Meta
const double	alpha = 7.2973525376e-3
const double	hc = 197.3269631
const double	MeV2nb = hc*hc*1e7
const double	Mpsi = 3096.916
const double	Gpsi = 93.2*1e-3
const double	Mpsi2 = Mpsi*Mpsi
const double	Geepsi = 5.55*1e-3
const double	Mpsip = 3686.09
const double	Gpsip = 317*1e-3
const double	Mpsip2 = Mpsip*Mpsip
const double	Geepsip = 2.38*1e-3
const double	Mpsipp = 3.772*1000
const double	Gpsipp = 27.3
const double	Mpsipp2 = Mpsipp*Mpsipp
const double	Geepsipp = 0.265*1e-3
const double	MKstar = 895.5
const double	GKstar = 46.2
const double	MKstar2 = MKstar*MKstar
const double	Mb1 = 1229.5
const double	Gb1 = 142
const double	Mb12 = Mb1*Mb1

Function Documentation

Gamma()

double rb::Gamma ( const double  Q2, const double  M2, const double  G, const double  mkpp2, const double  mkmp2  )

inline

Definition at line 16 of file TUtil.h.

                                                     {
    const double mkmp22 = mkmp2*mkmp2;
    double beta2_q = (Q2*Q2 - 2*Q2*mkpp2 + mkmp22)/pow(Q2 - mkpp2,2);
    double beta2_M = (M2*M2 - 2*M2*mkpp2 + mkmp22)/pow(M2 - mkpp2,2);
    double beta2 = beta2_q/beta2_M;
    double beta = sqrt(beta2);
    return G*M2/Q2*beta2*beta;
  }

Referenced by R().

PseudoScalars3()

TLorentzVector rb::PseudoScalars3 ( const TLorentzVector &  qp, const TLorentzVector &  qm, const TLorentzVector &  q0  )

inline

Definition at line 37 of file TUtil.h.

                                                {
    // The hadronic current
    // here for 3pi J_\mu=\epsilon_{a b g \mu}q+_{a}q-_{b}q0_{g}
 
    double Jx = qp.Y()*qm.Z()*q0.T()
      -    qp.Y()*qm.T()*q0.Z()
      +    qp.T()*qm.Y()*q0.Z()
      -    qp.T()*qm.Z()*q0.Y()
      +    qp.Z()*qm.T()*q0.Y()
      -    qp.Z()*qm.Y()*q0.T();
    
    double Jy = qp.X()*qm.Z()*q0.T()
      -    qp.X()*qm.T()*q0.Z()
      +    qp.T()*qm.X()*q0.Z()
      -    qp.T()*qm.Z()*q0.X()
      +    qp.Z()*qm.T()*q0.X()
      -    qp.Z()*qm.X()*q0.T();
    
    double Jz = qp.Y()*qm.X()*q0.T()
      -    qp.Y()*qm.T()*q0.X()
      +    qp.T()*qm.Y()*q0.X()
      -    qp.T()*qm.X()*q0.Y()
      +    qp.X()*qm.T()*q0.Y()
      -    qp.X()*qm.Y()*q0.T();
    
    double Jt = qp.Y()*qm.Z()*q0.X()
      -    qp.Y()*qm.X()*q0.Z()
      +    qp.X()*qm.Y()*q0.Z()
      -    qp.X()*qm.Z()*q0.Y()
      +    qp.Z()*qm.X()*q0.Y()
      -    qp.Z()*qm.Y()*q0.X();
    
    TLorentzVector J(Jx,Jy,Jz,Jt);
    return J;
  }

R()

complex_t rb::R ( double  Q2, double  M2, double  G, double  Mp2, double  Mm2  )

inline

Definition at line 27 of file TUtil.h.

                                    {
    if(Q2<Mp2) return 0;
    const complex_t I(0,1);
    double Q = sqrt(Q2);
    complex_t prop = M2/(Q2 - M2 + I*(Gamma(Q2,M2,G,Mp2,Mm2)*Q));
    return prop;
  }  

Variable Documentation

alpha

const double rb::alpha = 7.2973525376e-3

Definition at line 40 of file TConstant.h.

Referenced by rb::TDFun::TDFun().

Gb1

const double rb::Gb1 = 142

Definition at line 63 of file TConstant.h.

Geepsi

const double rb::Geepsi = 5.55*1e-3

Definition at line 46 of file TConstant.h.

Geepsip

const double rb::Geepsip = 2.38*1e-3

Definition at line 51 of file TConstant.h.

Geepsipp

const double rb::Geepsipp = 0.265*1e-3

Definition at line 56 of file TConstant.h.

Getap

const double rb::Getap = 0.205

Definition at line 10 of file TConstant.h.

GKstar

const double rb::GKstar = 46.2

Definition at line 59 of file TConstant.h.

Gomega

const double rb::Gomega = 0.0085*1000

Definition at line 25 of file TConstant.h.

Gphi

const double rb::Gphi = 4.26

Definition at line 16 of file TConstant.h.

Gpsi

const double rb::Gpsi = 93.2*1e-3

Definition at line 44 of file TConstant.h.

Gpsip

const double rb::Gpsip = 317*1e-3

Definition at line 49 of file TConstant.h.

Gpsipp

const double rb::Gpsipp = 27.3

Definition at line 54 of file TConstant.h.

Grho

const double rb::Grho = 149.4

Definition at line 12 of file TConstant.h.

Grhop

const double rb::Grhop = 0.3*1000

Definition at line 19 of file TConstant.h.

Grhopp

const double rb::Grhopp = 0.235*1000

Definition at line 21 of file TConstant.h.

Grhoppp

const double rb::Grhoppp = 350

Definition at line 23 of file TConstant.h.

hc

const double rb::hc = 197.3269631

Definition at line 41 of file TConstant.h.

Mb1

const double rb::Mb1 = 1229.5

Definition at line 62 of file TConstant.h.

Mb12

const double rb::Mb12 = Mb1*Mb1

Definition at line 64 of file TConstant.h.

me

const double rb::me = 0.51099907

Definition at line 5 of file TConstant.h.

Referenced by rb::TDFun::TDFun().

me2

const double rb::me2 = me*me

Definition at line 27 of file TConstant.h.

meta

const double rb::meta = 547.853

Definition at line 8 of file TConstant.h.

Meta

const double rb::Meta = 547.853

Definition at line 17 of file TConstant.h.

Meta2

const double rb::Meta2 = Meta*Meta

Definition at line 38 of file TConstant.h.

Metap

const double rb::Metap = 957.66

Definition at line 9 of file TConstant.h.

MeV2nb

const double rb::MeV2nb = hc*hc*1e7

Definition at line 42 of file TConstant.h.

mk0

const double rb::mk0 = 497.614

Definition at line 14 of file TConstant.h.

mk02

const double rb::mk02 = mk0*mk0

Definition at line 36 of file TConstant.h.

mkc

const double rb::mkc = 493.677

Definition at line 13 of file TConstant.h.

mkc2

const double rb::mkc2 = mkc*mkc

Definition at line 35 of file TConstant.h.

MKstar

const double rb::MKstar = 895.5

Definition at line 58 of file TConstant.h.

MKstar2

const double rb::MKstar2 = MKstar*MKstar

Definition at line 60 of file TConstant.h.

Momega

const double rb::Momega = 0.782*1000

Definition at line 24 of file TConstant.h.

Momega2

const double rb::Momega2 = Momega*Momega

Definition at line 34 of file TConstant.h.

Mphi

const double rb::Mphi = 1019.33

Definition at line 15 of file TConstant.h.

Mphi2

const double rb::Mphi2 = Mphi*Mphi

Definition at line 37 of file TConstant.h.

mpi

const double rb::mpi = 139.57018

Definition at line 6 of file TConstant.h.

mpi0

const double rb::mpi0 = 134.9766

Definition at line 7 of file TConstant.h.

mpi02

const double rb::mpi02 = mpi0*mpi0

Definition at line 29 of file TConstant.h.

mpi2

const double rb::mpi2 = mpi*mpi

Definition at line 28 of file TConstant.h.

Mpsi

const double rb::Mpsi = 3096.916

Definition at line 43 of file TConstant.h.

Mpsi2

const double rb::Mpsi2 = Mpsi*Mpsi

Definition at line 45 of file TConstant.h.

Mpsip

const double rb::Mpsip = 3686.09

Definition at line 48 of file TConstant.h.

Mpsip2

const double rb::Mpsip2 = Mpsip*Mpsip

Definition at line 50 of file TConstant.h.

Mpsipp

const double rb::Mpsipp = 3.772*1000

Definition at line 53 of file TConstant.h.

Mpsipp2

const double rb::Mpsipp2 = Mpsipp*Mpsipp

Definition at line 55 of file TConstant.h.

Mrho

const double rb::Mrho = 775.5

Definition at line 11 of file TConstant.h.

Mrho2

const double rb::Mrho2 = Mrho*Mrho

Definition at line 30 of file TConstant.h.

Mrhop

const double rb::Mrhop = 1.35*1000

Definition at line 18 of file TConstant.h.

Mrhop2

const double rb::Mrhop2 = Mrhop*Mrhop

Definition at line 31 of file TConstant.h.

Mrhopp

const double rb::Mrhopp = 1.7*1000

Definition at line 20 of file TConstant.h.

Mrhopp2

const double rb::Mrhopp2 = Mrhopp*Mrhopp

Definition at line 32 of file TConstant.h.

Mrhoppp

const double rb::Mrhoppp = 2150

Definition at line 22 of file TConstant.h.

Mrhoppp2

const double rb::Mrhoppp2 = Mrhoppp*Mrhoppp

Definition at line 33 of file TConstant.h.