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
G4INCLNKbToNKb2piChannel.cc
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file G4INCLNKbToNKb2piChannel.cc
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
// INCL++ intra-nuclear cascade model
27
// Alain Boudard, CEA-Saclay, France
28
// Joseph Cugnon, University of Liege, Belgium
29
// Jean-Christophe David, CEA-Saclay, France
30
// Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
31
// Sylvie Leray, CEA-Saclay, France
32
// Davide Mancusi, CEA-Saclay, France
33
//
34
#define INCLXX_IN_GEANT4_MODE 1
35
36
#include "
globals.hh
"
37
38
#include "
G4INCLNKbToNKb2piChannel.hh
"
39
#include "
G4INCLKinematicsUtils.hh
"
40
#include "
G4INCLBinaryCollisionAvatar.hh
"
41
#include "
G4INCLRandom.hh
"
42
#include "
G4INCLGlobals.hh
"
43
#include "
G4INCLLogger.hh
"
44
#include <algorithm>
45
#include "
G4INCLPhaseSpaceGenerator.hh
"
46
47
namespace
G4INCL {
48
49
const
G4double
NKbToNKb2piChannel::angularSlope
= 4.;
// What is the exact effect? Sould be check
50
51
NKbToNKb2piChannel::NKbToNKb2piChannel
(
Particle
*p1,
Particle
*p2)
52
: particle1(p1), particle2(p2)
53
{}
54
55
NKbToNKb2piChannel::~NKbToNKb2piChannel
(){}
56
57
void
NKbToNKb2piChannel::fillFinalState
(
FinalState
*
fs
) {
58
59
// p K0b -> p K0b pi+ pi- (1)
60
// p K0b -> p K0b pi0 pi0 (1/4)
61
// p K0b -> p K- pi+ pi0 (1)
62
// p K0b -> n K0b pi+ pi0 (1)
63
// p K0b -> n K- pi+ pi+ (1)
64
//
65
// p K- -> p K- pi+ pi- (1)
66
// p K- -> p K- pi0 pi0 (1/4)
67
// p K- -> p K0b pi0 pi- (1)
68
// p K- -> n K0b pi+ pi- (1)
69
// p K- -> n K0b pi0 pi0 (1/2)
70
// p K- -> n K- pi+ pi0 (1)
71
72
Particle
*
nucleon
;
73
Particle
*kaon;
74
75
if
(
particle1
->
isNucleon
()){
76
nucleon =
particle1
;
77
kaon =
particle2
;
78
}
79
else
{
80
nucleon =
particle2
;
81
kaon =
particle1
;
82
}
83
84
const
G4double
sqrtS =
KinematicsUtils::totalEnergyInCM
(nucleon, kaon);
85
86
const
G4int
iso =
ParticleTable::getIsospin
(nucleon->
getType
()) +
ParticleTable::getIsospin
(kaon->
getType
());
87
const
G4int
iso_n =
ParticleTable::getIsospin
(nucleon->
getType
());
88
G4double
rdm =
Random::shoot
();
89
90
ParticleType
Pion1Type;
91
ParticleType
Pion2Type;
92
93
if
(iso == 2 || iso == -2){
94
if
(rdm*17. < 4.){
95
Pion1Type =
PiPlus
;
96
Pion2Type =
PiMinus
;
97
}
98
else
if
(rdm*17. < 5.){
99
Pion1Type =
PiZero
;
100
Pion2Type =
PiZero
;
101
}
102
else
if
(rdm*17. < 9.){
103
Pion1Type =
ParticleTable::getPionType
(iso);
104
Pion2Type =
PiZero
;
105
kaon->
setType
(
ParticleTable::getAntiKaonType
(-iso_n));
106
}
107
else
if
(rdm*17. < 13.){
108
Pion1Type =
ParticleTable::getPionType
(iso);
109
Pion2Type =
PiZero
;
110
nucleon->
setType
(
ParticleTable::getNucleonType
(-iso_n));
111
}
112
else
{
113
Pion1Type =
ParticleTable::getPionType
(iso);
114
Pion2Type =
ParticleTable::getPionType
(iso);
115
kaon->
setType
(
ParticleTable::getAntiKaonType
(-iso_n));
116
nucleon->
setType
(
ParticleTable::getNucleonType
(-iso_n));
117
}
118
}
119
else
{
120
if
(rdm*19. < 4.){
121
Pion1Type =
PiPlus
;
122
Pion2Type =
PiMinus
;
123
}
124
else
if
(rdm*19. < 5.){
125
Pion1Type =
PiZero
;
126
Pion2Type =
PiZero
;
127
}
128
else
if
(rdm*19. < 9.){
129
Pion1Type =
ParticleTable::getPionType
(-2*iso_n);
130
Pion2Type =
PiZero
;
131
kaon->
setType
(
ParticleTable::getAntiKaonType
(iso_n));
132
}
133
else
if
(rdm*19. < 13.){
134
Pion1Type =
PiPlus
;
135
Pion2Type =
PiMinus
;
136
kaon->
setType
(
ParticleTable::getAntiKaonType
(iso_n));
137
nucleon->
setType
(
ParticleTable::getNucleonType
(-iso_n));
138
}
139
else
if
(rdm*19. < 15.){
140
Pion1Type =
PiZero
;
141
Pion2Type =
PiZero
;
142
kaon->
setType
(
ParticleTable::getAntiKaonType
(iso_n));
143
nucleon->
setType
(
ParticleTable::getNucleonType
(-iso_n));
144
}
145
else
{
146
Pion1Type =
ParticleTable::getPionType
(2*iso_n);
147
Pion2Type =
PiZero
;
148
nucleon->
setType
(
ParticleTable::getNucleonType
(-iso_n));
149
}
150
}
151
152
ParticleList
list;
153
list.push_back(nucleon);
154
list.push_back(kaon);
155
const
ThreeVector
&rcol1 = nucleon->
getPosition
();
156
const
ThreeVector
&rcol2 = kaon->
getPosition
();
157
const
ThreeVector
zero
;
158
Particle
*pion1 =
new
Particle
(Pion1Type,zero,rcol1);
159
Particle
*pion2 =
new
Particle
(Pion2Type,zero,rcol2);
160
list.push_back(pion1);
161
list.push_back(pion2);
162
163
PhaseSpaceGenerator::generateBiased
(sqrtS, list, 0,
angularSlope
);
164
165
fs->
addModifiedParticle
(nucleon);
166
fs->
addModifiedParticle
(kaon);
167
fs->
addCreatedParticle
(pion1);
168
fs->
addCreatedParticle
(pion2);
169
170
}
171
}
geant4
tree
geant4-10.6-release
source
processes
hadronic
models
inclxx
incl_physics
src
G4INCLNKbToNKb2piChannel.cc
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:45
using
1.8.2 with
ECCE GitHub integration