BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtGenKine.cc File Reference

#include "EvtGenBase/EvtPatches.hh"
#include <iostream>
#include "EvtGenBase/EvtGenKine.hh"
#include "EvtGenBase/EvtRandom.hh"
#include "EvtGenBase/EvtVector4R.hh"
#include "EvtGenBase/EvtReport.hh"
#include "EvtGenBase/EvtConst.hh"
#include <math.h>

Go to the source code of this file.

Functions
double	EvtPawt (double a, double b, double c)

Function Documentation

EvtPawt()

double EvtPawt	(	double	a,
		double	b,
		double	c
	)

Definition at line 33 of file BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtGenKine.cc.

{
  double temp=(a*a-(b+c)*(b+c))*(a*a-(b-c)*(b-c));
 
  if (temp<=0) {
 
    //report(ERROR,"EvtGen")<<"Sqrt of negative number in EvtPhaseSpace\n"<<
    //   "This seems to happen on AIX but I do not know why yet!"<<endl;
 
     return 0.0;
 
  }
 
  return sqrt(temp)/(2.0*a);
}