ECCE @ EIC Software
Reference for
ECCE @ EIC
simulation and reconstruction software on GitHub
Home page
Related Pages
Modules
Namespaces
Classes
Files
External Links
File List
File Members
All
Classes
Namespaces
Files
Functions
Variables
Typedefs
Enumerations
Enumerator
Friends
Macros
Groups
Pages
G4NeutronElectronElModel.hh
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file G4NeutronElectronElModel.hh
1
//
2
// ********************************************************************
3
// * License and Disclaimer *
4
// * *
5
// * The Geant4 software is copyright of the Copyright Holders of *
6
// * the Geant4 Collaboration. It is provided under the terms and *
7
// * conditions of the Geant4 Software License, included in the file *
8
// * LICENSE and available at http://cern.ch/geant4/license . These *
9
// * include a list of copyright holders. *
10
// * *
11
// * Neither the authors of this software system, nor their employing *
12
// * institutes,nor the agencies providing financial support for this *
13
// * work make any representation or warranty, express or implied, *
14
// * regarding this software system or assume any liability for its *
15
// * use. Please see the license in the file LICENSE and URL above *
16
// * for the full disclaimer and the limitation of liability. *
17
// * *
18
// * This code implementation is the result of the scientific and *
19
// * technical work of the GEANT4 collaboration. *
20
// * By using, copying, modifying or distributing the software (or *
21
// * any work based on the software) you agree to acknowledge its *
22
// * use in resulting scientific publications, and indicate your *
23
// * acceptance of all terms of the Geant4 Software license. *
24
// ********************************************************************
25
//
26
//
27
//
28
// Geant4 Header : G4NeutronElectronElModel
29
//
30
// 16.5.17 V.Grichine
31
//
32
// Modified:
33
//
34
// Class Description
35
// Default model for neutron-electron elastic scattering;
36
// Class Description - End
37
38
#ifndef G4NeutronElectronElModel_h
39
#define G4NeutronElectronElModel_h 1
40
41
#include "
globals.hh
"
42
#include "
G4HadronElastic.hh
"
43
#include "
G4HadProjectile.hh
"
44
#include "
G4Nucleus.hh
"
45
#include "
G4NucleiProperties.hh
"
46
47
class
G4ParticleDefinition
;
48
class
G4PhysicsLogVector
;
49
class
G4PhysicsTable
;
50
51
class
G4NeutronElectronElModel
:
public
G4HadronElastic
52
{
53
public
:
54
55
G4NeutronElectronElModel
(
const
G4String
&
name
=
"nu-e-elastic"
);
56
57
virtual
~G4NeutronElectronElModel
();
58
59
virtual
G4bool
IsApplicable
(
const
G4HadProjectile
& aTrack,
60
G4Nucleus
& targetNucleus);
61
62
virtual
G4HadFinalState
*
ApplyYourself
(
const
G4HadProjectile
& aTrack,
63
G4Nucleus
& targetNucleus);
64
65
void
Initialise
();
66
67
G4double
XscIntegrand
(
G4double
x
);
68
69
G4double
CalculateAm
(
G4double
momentum
);
70
71
inline
G4double
GetAm
(){
return
fAm
;};
72
73
74
// sample recoil electron energy in lab frame
75
76
G4double
SampleSin2HalfTheta
(
G4double
Tkin);
77
G4double
GetTransfer
(
G4int
iTkin,
G4int
iTransfer,
G4double
position
);
78
79
void
SetCutEnergy
(
G4double
ec){
fCutEnergy
=ec;};
80
G4double
GetCutEnergy
(){
return
fCutEnergy
;};
81
82
83
84
virtual
void
ModelDescription
(std::ostream&)
const
;
85
86
private
:
87
88
G4double
fAm
,
fM
,
fM2
,
fMv2
,
fme
,
fme2
,
fee
,
fee2
;
89
G4double
fMinEnergy
,
fMaxEnergy
;
90
G4int
fEnergyBin
,
fAngleBin
;
91
G4ParticleDefinition
*
theElectron
;
92
G4double
fCutEnergy
;
// minimal recoil electron energy detected
93
G4PhysicsLogVector
*
fEnergyVector
;
94
G4PhysicsTable
*
fAngleTable
;
95
};
96
98
//
99
// return Wentzel atom screening correction for neutron-electron scattering
100
101
inline
G4double
G4NeutronElectronElModel::CalculateAm
(
G4double
Tkin)
102
{
103
fee
= (Tkin+
fM
)*
fme
/
fM
;
104
// G4cout<<"fee = "<<fee<<" MeV"<<G4endl;
105
fee2
=
fee
*
fee
;
106
G4double
momentum
= std::sqrt(
fee2
-
fme2
);
107
G4double
k
= momentum/
CLHEP::hbarc
;
108
G4double
ch = 1.13;
109
G4double
zn = 1.77*k*
CLHEP::Bohr_radius
;
110
G4double
zn2 = zn*zn;
111
fAm
= ch/zn2;
112
113
return
fAm
;
114
}
115
116
117
#endif
geant4
tree
geant4-10.6-release
source
processes
hadronic
models
coherent_elastic
include
G4NeutronElectronElModel.hh
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:40
using
1.8.2 with
ECCE GitHub integration