EvtBSemiTauonicAmplitude.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
#pragma once
 
class EvtParticle;
class EvtAmp;
class EvtSpinDensity;
 
namespace Belle2 {
  class EvtBSemiTauonicHelicityAmplitudeCalculator;
 
  class EvtBSemiTauonicAmplitude {
  public:
 
    EvtBSemiTauonicAmplitude() {};
 
    virtual ~EvtBSemiTauonicAmplitude() {};
 
 
    virtual void CalcAmp(EvtParticle* parent, EvtAmp& amp,
                         EvtBSemiTauonicHelicityAmplitudeCalculator* HelicityAmplitudeCalculator) = 0;
 
    double CalcMaxProb(EvtId parent, EvtId meson, EvtId lepton,
                       EvtId nudaug,
                       EvtBSemiTauonicHelicityAmplitudeCalculator* HelicityAmplitudeCalculator);
 
    EvtSpinDensity RotateToHelicityBasisInBoostedFrame(const EvtParticle* p,
                                                       EvtVector4R p4boost);
 
  };
 
} // Belle 2 Namespace