Gabriele Cosmo
100 lines
4.5 KiB
C++
100 lines
4.5 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// INCL++ intra-nuclear cascade model
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// Alain Boudard, CEA-Saclay, France
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// Joseph Cugnon, University of Liege, Belgium
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// Jean-Christophe David, CEA-Saclay, France
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// Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
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// Sylvie Leray, CEA-Saclay, France
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// Davide Mancusi, CEA-Saclay, France
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//
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#define INCLXX_IN_GEANT4_MODE 1
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#include "globals.hh"
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#ifndef KinematicsUtils_hh
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#define KinematicsUtils_hh 1
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#include "G4INCLThreeVector.hh"
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#include "G4INCLParticle.hh"
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#include "G4INCLNucleus.hh"
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#include "G4INCLParticleSpecies.hh"
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namespace G4INCL {
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namespace KinematicsUtils {
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G4double fiveParFit(const G4double a, const G4double b, const G4double c, const G4double d, const G4double e, const G4double x);
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G4double compute_xs(const std::vector<G4double> coefficients, const G4double pLab);
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void transformToLocalEnergyFrame(Nucleus const * const n, Particle * const p);
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G4double getLocalEnergy(Nucleus const * const n, Particle * const p);
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ThreeVector makeBoostVector(Particle const * const p1, Particle const * const p2);
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G4double totalEnergyInCM(Particle const * const p1, Particle const * const p2);
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G4double squareTotalEnergyInCM(Particle const * const p1, Particle const * const p2);
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/** \brief gives the momentum in the CM frame of two particles.
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*
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* The formula is the following:
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* \f[ p_{CM}^2 = \frac{z^2 - m_1^2 m_2^2}{2 z + m_1^2 + m_2^2} \f]
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* where \f$z\f$ is the scalar product of the momentum four-vectors:
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* \f[ z = E_1 E_2 - \vec{p}_1\cdot\vec{p}_2 \f]
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*
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* \param p1 pointer to particle 1
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* \param p2 pointer to particle 2
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* \return the absolute value of the momentum of any of the two particles in
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* the CM frame, in MeV/c.
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*/
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G4double momentumInCM(Particle const * const p1, Particle const * const p2);
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G4double momentumInCM(const G4double E, const G4double M1, const G4double M2);
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/** \brief gives the momentum in the lab frame of two particles.
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*
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* Assumes particle 1 carries all the momentum and particle 2 is at rest.
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*
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* The formula is the following:
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* \f[ p_{lab}^2 = \frac{s^2 - 2 s (m_1^2 + m_2^2) + {(m_1^2 - m_2^2)}^2}{4 m_2^2} \f]
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*
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* \param p1 pointer to particle 1
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* \param p2 pointer to particle 2
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* \return the absolute value of the momentum of particle 1 in the lab frame,
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* in MeV/c
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*/
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G4double momentumInLab(Particle const * const p1, Particle const * const p2);
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G4double momentumInLab(const G4double s, const G4double m1, const G4double m2);
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G4double sumTotalEnergies(const ParticleList &);
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ThreeVector sumMomenta(const ParticleList &);
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G4double energy(const ThreeVector &p, const G4double m);
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G4double invariantMass(const G4double E, const ThreeVector & p);
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G4double squareInvariantMass(const G4double E, const ThreeVector & p);
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G4double gammaFromKineticEnergy(const ParticleSpecies &p, const G4double EKin);
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}
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}
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#endif
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