EvtbTosllAmp.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/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