EvtGenKine.cc File Reference

#include "EvtGenKine.hh"
#include "EvtConst.hh"
#include "EvtPatches.hh"
#include "EvtRandom.hh"
#include "EvtReport.hh"
#include "EvtVector4R.hh"
#include <iostream>
#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 32 of file 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 );
}

Referenced by EvtGenKine::PhaseSpace().