EvtdFunction Class Reference

#include <EvtdFunction.hh>

List of all members.

Static Public Member Functions
static double	d (int j, int m1, int m2, double theta)

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Detailed Description

Definition at line 24 of file EvtdFunction.hh.

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Member Function Documentation

double EvtdFunction::d	(	int	j,
		int	m1,
		int	m2,
		double	theta
	)			[static]

Definition at line 30 of file EvtdFunction.cc.

References abs, EvtdFunctionSingle::d(), and EvtdFunctionSingle::init().

Referenced by EvtPto3PAmp::angDep(), EvtDalitzReso::angDep(), Djmn(), djmn(), EvtEvalHelAmp::evalAmp(), EvtEvalHelAmp::probMax(), EvtHighSpinParticle::rotateToHelicityBasis(), and wignerD().

                                                       {


  int m1p=m1;
  int m2p=m2;


  int signp=1;
  //make |m2p|>|m1p|
  if (abs(m2p)<abs(m1p)) {
    int tmp=m1p;
    m1p=m2p;
    m2p=tmp;
    if ((m1p-m2p)%4!=0) signp=-signp;
  } 

  //make m2p non-negative
  if (m2p<0) {
    m1p=-m1p;
    m2p=-m2p;
    if ((m1p-m2p)%4!=0) signp=-signp;
  }


  EvtdFunctionSingle df;

  df.init(j,m1p,m2p);

  double d=df.d(j,m1p,m2p,theta)*signp;

  return d;
  
}

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