/home/bes3soft/bes3soft/Boss/7.0.2/dist/7.0.2/Generator/Mcgpj/Mcgpj-00-01-04/src/code3pi/src/T4piCrossPart.C File Reference

#include <iostream>
#include "T4piCrossPart.h"
#include "TConstant.h"
#include <complex>

Go to the source code of this file.

Typedefs
typedef std::complex< double >	complex_t
Functions
complex_t	bw_rho (double s)
complex_t	Rrho (double s, bool IsIsospinBreak)
complex_t	bw_om (double s)

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Typedef Documentation

typedef std::complex<double> complex_t

Definition at line 7 of file T4piCrossPart.C.

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Function Documentation

complex_t bw_om

(

double

s

)

[inline]

Definition at line 34 of file T4piCrossPart.C.

References rb::Gomega, and rb::Momega.

                                {
  complex_t Domega = complex_t(Momega*Momega-s,-Momega*Gomega);
  complex_t bw = 1./Domega;
  return bw;
}

complex_t bw_rho

(

double

s

)

[inline]

Definition at line 12 of file T4piCrossPart.C.

References rb::Grho, rb::Grhop, rb::Mrho, and rb::Mrhop.

                                 {
  const double sig = -0.1;
  complex_t Drho = complex_t(Mrho*Mrho-s,-Mrho*Grho);
  complex_t Drhop = complex_t(Mrhop*Mrhop-s,-Mrhop*Grhop);
  complex_t bw = (1./Drho + sig/Drhop);
//
// dumping factor added in omega part: to be substituted with a formfactor
//
  const double Et2 = (2.2*1e3)*(2.2*1e3);
  if(s>Et2){
    double r = Et2/s;
    bw *= r*r;
  }
  return bw;
}

complex_t Rrho	(	double	s,
		bool	IsIsospinBreak
	)			[inline]

Definition at line 28 of file T4piCrossPart.C.

References rb::Grho, rb::Mrho, and rb::Mrho2.

                                                    {
  complex_t Drho = complex_t(Mrho2-s, -Mrho*Grho);
  complex_t prop_rho = Mrho2/Drho;
  return prop_rho;
}

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