EvtbTosllAmp.hh

Go to the documentation of this file.

//--------------------------------------------------------------------------
//
// 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/EvtbTosllAmp.hh
//
// Description:
//
// Modification history:
//
//    RYD     January 30 2000         Module created
//
//------------------------------------------------------------------------
 
#ifndef EVTBTOSLLAMP_HH
#define EVTBTOSLLAMP_HH
extern "C" double ddilog_(const double & sh);
 
class EvtAmp;
class EvtId;
class EvtbTosllFF;
class EvtParticle;
class EvtComplex;
 
class EvtbTosllAmp{
 
 public:
 
  //Daughters are initialized and have been added to the parent.
  //No need to carry around the daughters seperately!
 
  virtual void CalcAmp( EvtParticle *parent, EvtAmp& amp,
            EvtbTosllFF *formFactors )=0;
 
  double CalcMaxProb( EvtId parent, EvtId meson, EvtId lepton,
              EvtId nudaug, EvtbTosllFF *formFactors,
              double& poleSize);
 
  EvtComplex GetC7Eff(double q2, bool nnlo=true);
  EvtComplex GetC9Eff(double q2, bool nnlo=true, bool btod=false);
  EvtComplex GetC10Eff(double q2, bool nnlo=true);
 
  double dGdsProb(double mb, double ms, double ml,
                                  double s);
 
  double dGdsdupProb(double mb, double ms, double ml,
                                     double s,  double u);
 
};
 
#endif