EvtBtoXsllUtil.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.
//
//
// Module: EvtGen/EvtBtoXsllUtil.hh
//
// Description:
// Class to generate inclusive non-resonant B -> Xs l+ l- decays.
//
// Modification history:
//
//    Stephane Willocq    Jan 19, 2001   Module created
//    Stephane Willocq    Nov  6, 2003   Update Wilson Coeffs
//
//------------------------------------------------------------------------
 
#ifndef EVTBTOXSLLUTIL_HH
#define EVTBTOXSLLUTIL_HH
 
#include "../EvtGenBase/EvtComplex.hh"
#include "../EvtGenBase/EvtDecayIncoherent.hh"
#include "../EvtGenBase/EvtParticle.hh"
 
class EvtComplex;
 
class EvtBtoXsllUtil {
 
public:
  EvtComplex GetC7Eff0( double sh, bool nnlo = true );
  EvtComplex GetC7Eff1( double sh, double mb, bool nnlo = true );
  EvtComplex GetC9Eff0( double sh, double mb, bool nnlo = true, bool btod = false );
  EvtComplex GetC9Eff1( double sh, double mb, bool nnlo = true, bool btod = false );
  EvtComplex GetC10Eff( double sh, 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 );
 
  double FermiMomentum( double pf );
 
  double FermiMomentumProb( double pb, double pf );
};
 
#endif