EvtCPUtil.hh

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//--------------------------------------------------------------------------
//
// Environment:
//      This software is part of the EvtGen package developed jointly
//      for the BaBar and CLEO collaborations.  If you use all or part
//      of it, please give an appropriate acknowledgement.
//
// Copyright Information: See EvtGen/COPYRIGHT
//      Copyright (C) 1998      Caltech, UCSB
//
// Module: EvtGen/EvtCPUtil.hh
//
// Description:Class to hold CP physics utilities.
//
// Modification history:
//
//    RYD     March 24, 1998         Module created
//
//------------------------------------------------------------------------
 
#ifndef EVTCPUTIL_HH
#define EVTCPUTIL_HH
 
#include "EvtComplex.hh"
#include "EvtPatches.hh"
class EvtParticle;
class EvtId;
 
class EvtCPUtil {
 
public:
  static void fractB0CP( EvtComplex Af, EvtComplex Abarf, double deltam, double beta,
                         double& fract );
 
  static void fractB0nonCP( EvtComplex Af, EvtComplex Abarf, EvtComplex Afbar,
                            EvtComplex Abarfbar, double deltam, double beta, int flip,
                            double& fract );
 
  static void OtherB( EvtParticle* p, double& t, EvtId& otherb );
 
  static void OtherB( EvtParticle* p, double& t, EvtId& otherb, double probB0 );
 
  // id is the produced particle
  // t returns the lifetime of the particle
  // and mix will be 1 if it mixed otherwise 0
  static void incoherentMix( const EvtId id, double& t, int& mix );
};
 
#endif