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G4GammaAnnCrossSection.cc
Go to the documentation of this file.
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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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#include "
G4GammaAnnCrossSection.hh
"
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#include "
G4Gamma.hh
"
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G4GammaAnnCrossSection::
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G4GammaAnnCrossSection
()
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{
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// pho0 Nucleon
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theGammaNucXSections
.push_back(
new
G4ASCCrossSection
(113, 2212, 13.7, 35.9, 0.45, 0.079));
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// omega0 Nucleon
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theGammaNucXSections
.push_back(
new
G4ASCCrossSection
(223, 2212, 13.7, 35.9, 0.45, 0.079));
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// phi0 Nucleon
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theGammaNucXSections
.push_back(
new
G4ASCCrossSection
(333, 2212, 12.2, 26.4, 0.50, 0.079));
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}
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G4bool
G4GammaAnnCrossSection::
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InCharge
(
G4int
aCode,
G4int
bCode)
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{
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G4bool
result =
false
;
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if
(aCode==
G4Gamma::Gamma
()->GetPDGEncoding())
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{
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result=
true
;
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}
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else
if
(bCode==
G4Gamma::Gamma
()->GetPDGEncoding())
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{
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result =
true
;
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}
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return
result;
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}
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G4double
G4GammaAnnCrossSection::
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GetXsec
(
G4double
S)
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{
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G4double
result = 0;
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// ratios from Phys.Lett.B40:121-126,1972; 22% assigned to higher resonances
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typedef
std::vector<G4ASCCrossSection*>::iterator iter;
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iter i;
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for
(i=
theGammaNucXSections
.begin(); i!=
theGammaNucXSections
.end(); i++)
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{
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result += (*i)->GetXsec(S);
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}
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// Account for higher resonances.
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result /= 0.78;
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return
result;
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}
G4GammaAnnCrossSection::G4GammaAnnCrossSection
G4GammaAnnCrossSection()
Definition:
G4GammaAnnCrossSection.cc:30
G4GammaAnnCrossSection.hh
G4GammaAnnCrossSection::theGammaNucXSections
std::vector< G4ASCCrossSection * > theGammaNucXSections
Definition:
G4GammaAnnCrossSection.hh:44
G4int
int G4int
Definition:
G4Types.hh:78
G4ASCCrossSection
Definition:
G4ASCCrossSection.hh:32
G4bool
bool G4bool
Definition:
G4Types.hh:79
G4Gamma::Gamma
static G4Gamma * Gamma()
Definition:
G4Gamma.cc:86
G4GammaAnnCrossSection::GetXsec
G4double GetXsec(G4double S)
Definition:
G4GammaAnnCrossSection.cc:56
G4double
double G4double
Definition:
G4Types.hh:76
G4GammaAnnCrossSection::InCharge
G4bool InCharge(G4int aCode, G4int bCode)
Definition:
G4GammaAnnCrossSection.cc:41
G4Gamma.hh
geant4.10.00.p01
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src
G4GammaAnnCrossSection.cc
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