XSecAlgorithmI.h

Go to the documentation of this file.

//____________________________________________________________________________
/*!
 
\class    genie::XSecAlgorithmI
 
\brief    Cross Section Calculation Interface.
 
\author   Costas Andreopoulos <c.andreopoulos \at cern.ch>
          University of Liverpool
 
\created  May 03, 2004
 
\cpright  Copyright (c) 2003-2025, The GENIE Collaboration
          For the full text of the license visit http://copyright.genie-mc.org
*/
//____________________________________________________________________________
 
#ifndef _XSEC_ALGORITHM_I_H_
#define _XSEC_ALGORITHM_I_H_
 
#include "Framework/Algorithm/Algorithm.h"
#include "Framework/Conventions/KinePhaseSpace.h"
#include "Framework/Interaction/Interaction.h"
 
namespace genie {
 
class XSecAlgorithmI : public Algorithm {
 
public:
  virtual ~XSecAlgorithmI();
 
  //! Compute the cross section for the input interaction
  virtual double XSec (const Interaction* i, KinePhaseSpace_t k=kPSfE) const = 0;
 
  //! Integrate the model over the kinematic phase space available to the
  //! input interaction (kinematical cuts can be included)
  virtual double Integral (const Interaction* i) const = 0;
 
  //! Can this cross section algorithm handle the input process?
  virtual bool ValidProcess    (const Interaction* i) const = 0;
 
  //! Is the input kinematical point a physically allowed one?
  virtual bool ValidKinematics (const Interaction* i) const;
 
protected:
  XSecAlgorithmI();
  XSecAlgorithmI(string name);
  XSecAlgorithmI(string name, string config);
};
 
}       // genie namespace
#endif  // _XSEC_ALGORITHM_I_H_