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G4INCLEventInfo.cc
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file G4INCLEventInfo.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 "
G4INCLEventInfo.hh
"
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#include "
G4INCLGlobals.hh
"
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#include "
G4INCLParticleTable.hh
"
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#include "
G4INCLParticle.hh
"
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#include <cmath>
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namespace
G4INCL {
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G4ThreadLocal
Int_t
EventInfo::eventNumber
= 0;
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void
EventInfo::fillInverseKinematics
(
const
Double_t
gamma) {
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const
Double_t
beta = std::sqrt(1.-1./(gamma*gamma));
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for
(
Int_t
i=0; i<
nParticles
; ++i) {
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// determine the particle mass from the kinetic energy and the momentum;
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// this ensures consistency with the masses uses by the models
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Double_t
mass
;
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if
(
EKin
[i]>0.) {
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mass =
std::max
(
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0.5 * (
px
[i]*
px
[i]+
py
[i]*
py
[i]+
pz
[i]*
pz
[i]-
EKin
[i]*
EKin
[i]) /
EKin
[i],
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0.0);
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}
else
{
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INCL_WARN
(
"Particle with null kinetic energy in fillInverseKinematics, cannot determine its mass:\n"
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<<
" A="
<<
A
[i] <<
", Z="
<<
Z
[i] <<
", S="
<<
S
[i] <<
'\n'
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<<
" EKin="
<<
EKin
[i] <<
", px="
<<
px
[i] <<
", py="
<<
py
[i] <<
", pz="
<<
pz
[i] <<
'\n'
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<<
" Falling back to the mass from the INCL ParticleTable"
<<
'\n'
);
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mass =
ParticleTable::getRealMass
(
A
[i],
Z
[i],
S
[i]);
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}
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const
Double_t
ETot =
EKin
[i] +
mass
;
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const
Double_t
ETotPrime = gamma*(ETot - beta*
pz
[i]);
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EKinPrime
[i] = ETotPrime -
mass
;
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pzPrime
[i] = -gamma*(
pz
[i] - beta*ETot);
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const
Double_t
pPrime = std::sqrt(
px
[i]*
px
[i] +
py
[i]*
py
[i] +
pzPrime
[i]*
pzPrime
[i]);
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const
Double_t
cosThetaPrime = (pPrime>0.) ? (
pzPrime
[i]/pPrime) : 1.;
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if
(cosThetaPrime>=1.)
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thetaPrime
[i] = 0.;
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else
if
(cosThetaPrime<=-1.)
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thetaPrime
[i] = 180.;
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else
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thetaPrime
[i] =
Math::toDegrees
(
Math::arcCos
(cosThetaPrime));
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}
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}
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void
EventInfo::remnantToParticle
(
const
G4int
remnantIndex) {
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INCL_DEBUG
(
"remnantToParticle function used\n"
);
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A
[
nParticles
] =
ARem
[remnantIndex];
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Z
[
nParticles
] =
ZRem
[remnantIndex];
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S
[
nParticles
] =
SRem
[remnantIndex];
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ParticleSpecies
pt
(
A
[
nParticles
],
Z
[nParticles],
S
[nParticles]);
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PDGCode
[
nParticles
] = pt.
getPDGCode
();
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ParticleBias
[
nParticles
] =
Particle::getTotalBias
();
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emissionTime
[
nParticles
] =
stoppingTime
;
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px
[
nParticles
] =
pxRem
[remnantIndex];
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py
[
nParticles
] =
pyRem
[remnantIndex];
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pz
[
nParticles
] =
pzRem
[remnantIndex];
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const
G4double
plab = std::sqrt(
pxRem
[remnantIndex]*
pxRem
[remnantIndex]
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+
pyRem
[remnantIndex]*
pyRem
[remnantIndex]
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+
pzRem
[remnantIndex]*
pzRem
[remnantIndex]);
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G4double
pznorm =
pzRem
[remnantIndex]/plab;
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if
(pznorm>1.)
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pznorm = 1.;
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else
if
(pznorm<-1.)
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pznorm = -1.;
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theta
[
nParticles
] =
Math::toDegrees
(
Math::arcCos
(pznorm));
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phi
[
nParticles
] =
Math::toDegrees
(std::atan2(
pyRem
[remnantIndex],
pxRem
[remnantIndex]));
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EKin
[
nParticles
] =
EKinRem
[remnantIndex];
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origin
[
nParticles
] = -1;
// Origin: cascade
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history
.push_back(
""
);
// history
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nParticles++;
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// assert(history.size()==(unsigned int)nParticles);
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}
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}
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geant4
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geant4-10.6-release
source
processes
hadronic
models
inclxx
utils
src
G4INCLEventInfo.cc
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:45
using
1.8.2 with
ECCE GitHub integration