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G4HadronElastic.hh
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file G4HadronElastic.hh
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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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//
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// Geant4 Header : G4HadronElastic
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//
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// Author : V.Ivanchenko 29 June 2009 (redesign old elastic model)
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//
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// Modified:
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//
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// Class Description
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// Default model for elastic scattering; GHEISHA algorithm is used
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// Class Description - End
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#ifndef G4HadronElastic_h
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#define G4HadronElastic_h 1
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#include "
globals.hh
"
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#include "
G4HadronicInteraction.hh
"
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#include "
G4HadProjectile.hh
"
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#include "
G4Nucleus.hh
"
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#include "
G4NucleiProperties.hh
"
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class
G4ParticleDefinition
;
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class
G4HadronElastic
:
public
G4HadronicInteraction
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{
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public
:
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explicit
G4HadronElastic
(
const
G4String
&
name
=
"hElasticLHEP"
);
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~G4HadronElastic
()
override
;
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// implementation of the G4HadronicInteraction interface
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G4HadFinalState
*
ApplyYourself
(
const
G4HadProjectile
& aTrack,
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G4Nucleus
& targetNucleus)
override
;
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// sample momentum transfer using Lab. momentum
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G4double
SampleInvariantT
(
const
G4ParticleDefinition
*
p
,
G4double
plab,
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G4int
Z
,
G4int
A
)
override
;
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G4double
GetSlopeCof
(
const
G4int
pdg
);
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inline
void
SetLowestEnergyLimit
(
G4double
value
);
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inline
G4double
LowestEnergyLimit
()
const
;
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inline
G4double
ComputeMomentumCMS
(
const
G4ParticleDefinition
* p,
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G4double
plab,
G4int
Z,
G4int
A);
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void
ModelDescription
(std::ostream&)
const override
;
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protected
:
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G4double
pLocalTmax
;
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private
:
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G4ParticleDefinition
*
theProton
;
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G4ParticleDefinition
*
theNeutron
;
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G4ParticleDefinition
*
theDeuteron
;
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G4ParticleDefinition
*
theAlpha
;
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G4double
lowestEnergyLimit
;
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G4int
nwarn
;
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};
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inline
void
G4HadronElastic::SetLowestEnergyLimit
(
G4double
value
)
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{
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lowestEnergyLimit
=
value
;
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}
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inline
G4double
G4HadronElastic::LowestEnergyLimit
()
const
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{
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return
lowestEnergyLimit
;
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}
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inline
G4double
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G4HadronElastic::ComputeMomentumCMS
(
const
G4ParticleDefinition
*
p
,
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G4double
plab,
G4int
Z
,
G4int
A
)
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{
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G4double
m1 = p->
GetPDGMass
();
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G4double
m12= m1*m1;
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G4double
mass2 =
G4NucleiProperties::GetNuclearMass
(A, Z);
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return
plab*mass2/std::sqrt(m12 + mass2*mass2 + 2.*mass2*std::sqrt(m12 + plab*plab));
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}
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#endif
geant4
tree
geant4-10.6-release
source
processes
hadronic
models
coherent_elastic
include
G4HadronElastic.hh
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:40
using
1.8.2 with
ECCE GitHub integration