//
// ********************************************************************
// * License and Disclaimer                                           *
// *                                                                  *
// * The  Geant4 software  is  copyright of the Copyright Holders  of *
// * the Geant4 Collaboration.  It is provided  under  the terms  and *
// * conditions of the Geant4 Software License,  included in the file *
// * LICENSE and available at  http://cern.ch/geant4/license .  These *
// * include a list of copyright holders.                             *
// *                                                                  *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work  make  any representation or  warranty, express or implied, *
// * regarding  this  software system or assume any liability for its *
// * use.  Please see the license in the file  LICENSE  and URL above *
// * for the full disclaimer and the limitation of liability.         *
// *                                                                  *
// * This  code  implementation is the result of  the  scientific and *
// * technical work of the GEANT4 collaboration.                      *
// * By using,  copying,  modifying or  distributing the software (or *
// * any work based  on the software)  you  agree  to acknowledge its *
// * use  in  resulting  scientific  publications,  and indicate your *
// * acceptance of all terms of the Geant4 Software license.          *
// ********************************************************************
//
// $Id$
//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4BGGPionInelasticXS
//
// Author:        Vladimir Ivanchenko
//
// Creation date: 01.10.2003
// Modifications:
//
//
// Class Description:
//
// Wrapper of pi+ and pi- inelastic cross-sections using Barashenkov 
// parametersation below 100 GeV and Glauber-Gribov model above
//
// -------------------------------------------------------------------
//

#ifndef G4BGGPionInelasticXS_h
#define G4BGGPionInelasticXS_h

#include "globals.hh"
#include "G4VCrossSectionDataSet.hh"
#include "G4ParticleDefinition.hh"
#include "G4Element.hh"
#include "G4HadTmpUtil.hh"


class G4ComponentGGHadronNucleusXsc;
class G4UPiNuclearCrossSection;
class G4HadronNucleonXsc;
class G4Pow;
class G4ComponentSAIDTotalXS;
class G4Material;
class G4Element;
class G4Isotope;

class G4BGGPionInelasticXS : public G4VCrossSectionDataSet
{
public:

  G4BGGPionInelasticXS (const G4ParticleDefinition*);

  virtual ~G4BGGPionInelasticXS();

  virtual
  G4bool IsElementApplicable(const G4DynamicParticle*, G4int Z,
			     const G4Material* mat = 0);

  virtual
  G4bool IsIsoApplicable(const G4DynamicParticle*, G4int Z, G4int A,  
			 const G4Element* elm = 0,
			 const G4Material* mat = 0);

  virtual
  G4double GetElementCrossSection(const G4DynamicParticle*, G4int Z,
				  const G4Material* mat = 0);

  virtual
  G4double GetIsoCrossSection(const G4DynamicParticle*, G4int Z, G4int A,  
			      const G4Isotope* iso = 0,
			      const G4Element* elm = 0,
			      const G4Material* mat = 0);

  virtual
  void BuildPhysicsTable(const G4ParticleDefinition&);

  virtual void CrossSectionDescription(std::ostream&) const;

private:

  G4double CoulombFactor(G4double kinEnergy, G4int Z);

  G4BGGPionInelasticXS & operator=(const G4BGGPionInelasticXS &right);
  G4BGGPionInelasticXS(const G4BGGPionInelasticXS&);

  G4double fGlauberEnergy;  
  G4double fLowEnergy;  
  G4double fSAIDHighEnergyLimit;
  G4double theGlauberFac[93];
  G4double theCoulombFac[93];
  G4int    theA[93];

  const G4ParticleDefinition*     particle;
  const G4ParticleDefinition*     theProton;

  G4Pow*                          fG4pow;

  G4ComponentGGHadronNucleusXsc*  fGlauber;
  G4UPiNuclearCrossSection*       fPion;
  G4HadronNucleonXsc*             fHadron;
  G4ComponentSAIDTotalXS*         fSAID;
  G4bool                          isPiplus;
  G4bool                          isInitialized;
};

#endif
