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G4INCLPiNToDeltaChannel.cc
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file G4INCLPiNToDeltaChannel.cc
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//
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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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#include "
G4INCLPiNToDeltaChannel.hh
"
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#include "
G4INCLKinematicsUtils.hh
"
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#include "
G4INCLBinaryCollisionAvatar.hh
"
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#include "
G4INCLRandom.hh
"
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#include "
G4INCLGlobals.hh
"
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#include "
G4INCLLogger.hh
"
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namespace
G4INCL {
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PiNToDeltaChannel::PiNToDeltaChannel
(
Particle
*p1,
Particle
*p2)
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: particle1(p1), particle2(p2)
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{
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}
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PiNToDeltaChannel::~PiNToDeltaChannel
(){
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}
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void
PiNToDeltaChannel::fillFinalState
(
FinalState
*
fs
) {
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Particle
*
nucleon
;
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Particle
*
pion
;
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if
(
particle1
->
isNucleon
()) {
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nucleon =
particle1
;
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pion =
particle2
;
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}
else
{
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nucleon =
particle2
;
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pion =
particle1
;
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}
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ParticleType
deltaType =
DeltaZero
;
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if
(
ParticleConfig::isPair
(
particle1
,
particle2
,
Proton
,
PiPlus
)) {
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deltaType =
DeltaPlusPlus
;
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}
else
if
(
ParticleConfig::isPair
(
particle1
,
particle2
,
Neutron
,
PiPlus
)) {
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deltaType =
DeltaPlus
;
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}
else
if
(
ParticleConfig::isPair
(
particle1
,
particle2
,
Proton
,
PiZero
)) {
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deltaType =
DeltaPlus
;
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}
else
if
(
ParticleConfig::isPair
(
particle1
,
particle2
,
Neutron
,
PiZero
)) {
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deltaType =
DeltaZero
;
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}
else
if
(
ParticleConfig::isPair
(
particle1
,
particle2
,
Proton
,
PiMinus
)) {
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deltaType =
DeltaZero
;
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}
else
if
(
ParticleConfig::isPair
(
particle1
,
particle2
,
Neutron
,
PiMinus
)) {
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deltaType =
DeltaMinus
;
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}
else
{
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INCL_ERROR
(
"Unknown particle pair in Pi-N collision."
<<
'\n'
);
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}
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G4double
deltaEnergy = nucleon->
getEnergy
()+ pion->
getEnergy
();
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nucleon->
setType
(deltaType);
// nucleon becomes the delta
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nucleon->
setEnergy
(deltaEnergy);
// set the energy of the delta
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ThreeVector
deltaMomentum = nucleon->
getMomentum
() + pion->
getMomentum
();
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nucleon->
setMomentum
(deltaMomentum);
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const
G4double
deltaMass = std::sqrt(deltaEnergy*deltaEnergy - deltaMomentum.
mag2
());
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nucleon->
setMass
(deltaMass);
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fs->
addModifiedParticle
(nucleon);
// nucleon became a delta
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fs->
addDestroyedParticle
(pion);
// pion was removed
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}
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}
geant4
tree
geant4-10.6-release
source
processes
hadronic
models
inclxx
incl_physics
src
G4INCLPiNToDeltaChannel.cc
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:45
using
1.8.2 with
ECCE GitHub integration