NuElectronPXSec.h

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//____________________________________________________________________________
/*!
 
\class    genie::NuElectronPXSec
 
\brief    nu/nubar + e- scattering differential cross section \n
          The cross section algorithm handles:
             - nue/nuebar + e- -> nue/nuebar + e- [CC + NC + interference]
             - numu/nutau + e- -> numu/nutau + e- [NC]
             - numubar/nutaubar + e- -> numubar/nutaubar + e- [NC]
             - numu/nutau + e- -> l- + nu_e [CC]
 
          Is a concrete implementation of the XSecAlgorithmI interface. \n
 
\ref      W.J.Marciano and Z.Parsa, Neutrino-electron scattering theory,
          J.Phys.G: Nucl.Part.Phys. 29 (2003) 2629-2645
 
\author   Costas Andreopoulos <c.andreopoulos \at cern.ch>
          University of Liverpool
 
\created  February 10, 2006
 
\cpright  Copyright (c) 2003-2025, The GENIE Collaboration
          For the full text of the license visit http://copyright.genie-mc.org          
*/
//____________________________________________________________________________
 
#ifndef _NU_ELECTRON_PARTIAL_XSEC_H_
#define _NU_ELECTRON_PARTIAL_XSEC_H_
 
#include "Framework/EventGen/XSecAlgorithmI.h"
 
namespace genie {
 
class IntegratorI;
class XSecIntegratorI;
 
class NuElectronPXSec : public XSecAlgorithmI {
 
public:
  NuElectronPXSec();
  NuElectronPXSec(string config);
  virtual ~NuElectronPXSec();
 
  //-- XSecAlgorithmI interface implementation
  double XSec            (const Interaction * i, KinePhaseSpace_t k) const;
  double Integral        (const Interaction * i) const;
  bool   ValidProcess    (const Interaction * i) const;
  bool   ValidKinematics (const Interaction * i) const;
 
  //-- overload the Algorithm::Configure() methods to load private data
  //   members from configuration options
  void Configure(const Registry & config);
  void Configure(string config);
 
private:
  void LoadConfig (void);
 
  const XSecIntegratorI * fXSecIntegrator;
 
  double fSin28w; // sin^2(theta-weinberg)
  double fSin48w;
};
 
}       // genie namespace
#endif  // _NU_ELECTRON_PARTIAL_XSEC_H_