Geant4.10
Main Page
Related Pages
Modules
Namespaces
Data Structures
Files
File List
Globals
All
Data Structures
Namespaces
Files
Functions
Variables
Typedefs
Enumerations
Enumerator
Friends
Macros
Groups
Pages
geant4.10.00.p01
source
particles
leptons
src
G4TauMinus.cc
Go to the documentation of this file.
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
// $Id: G4TauMinus.cc 69015 2013-04-15 09:46:48Z gcosmo $
28
//
29
//
30
// ----------------------------------------------------------------------
31
// GEANT 4 class implementation file
32
//
33
// History: first implementation, based on object model of
34
// 4th April 1996, G.Cosmo
35
// 7 July 1996 H.Kurashige
36
// **********************************************************************
37
// New impelemenataion as an utility class M.Asai, 26 July 2004
38
// ----------------------------------------------------------------------
39
40
#include "
G4TauMinus.hh
"
41
#include "
G4PhysicalConstants.hh
"
42
#include "
G4SystemOfUnits.hh
"
43
#include "
G4ParticleTable.hh
"
44
45
#include "
G4PhaseSpaceDecayChannel.hh
"
46
#include "
G4TauLeptonicDecayChannel.hh
"
47
#include "
G4DecayTable.hh
"
48
49
// ######################################################################
50
// ### TAUMINUS ###
51
// ######################################################################
52
G4TauMinus
* G4TauMinus::theInstance = 0;
53
54
G4TauMinus
*
G4TauMinus::Definition
()
55
{
56
if
(theInstance !=0)
return
theInstance;
57
const
G4String
name
=
"tau-"
;
58
// search in particle table]
59
G4ParticleTable
* pTable =
G4ParticleTable::GetParticleTable
();
60
G4ParticleDefinition
* anInstance = pTable->
FindParticle
(name);
61
if
(anInstance ==0)
62
{
63
// create particle
64
//
65
// Arguments for constructor are as follows
66
// name mass width charge
67
// 2*spin parity C-conjugation
68
// 2*Isospin 2*Isospin3 G-parity
69
// type lepton number baryon number PDG encoding
70
// stable lifetime decay table
71
// shortlived subType anti_encoding
72
anInstance =
new
G4ParticleDefinition
(
73
name, 1.77682*
GeV
, 2.265e-9*
MeV
, -1.*
eplus
,
74
1, 0, 0,
75
0, 0, 0,
76
"lepton"
, 1, 0, 15,
77
false
, 290.6e-6*
ns
, NULL,
78
false
,
"tau"
79
);
80
81
// Bohr Magnetron
82
G4double
muB = -0.5*
eplus
*
hbar_Planck
/(anInstance->
GetPDGMass
()/
c_squared
) ;
83
84
anInstance->
SetPDGMagneticMoment
( muB * 1.00118);
85
86
//create Decay Table
87
G4DecayTable
* table =
new
G4DecayTable
();
88
89
// create decay channels
90
G4VDecayChannel
* mode;
91
// tau- -> mu- + anti_nu_mu + nu_tau
92
mode =
new
G4TauLeptonicDecayChannel
(
"tau-"
,0.1736,
"mu-"
);
93
table->
Insert
(mode);
94
// tau- -> e- + anti_nu_e + nu_tau
95
mode =
new
G4TauLeptonicDecayChannel
(
"tau-"
,0.1784,
"e-"
);
96
table->
Insert
(mode);
97
// tau- -> pi- + nu_tau
98
mode =
new
G4PhaseSpaceDecayChannel
(
"tau-"
,0.1106,2,
"pi-"
,
"nu_tau"
);
99
table->
Insert
(mode);
100
// tau- -> pi0 + pi- + nu_tau
101
mode =
new
G4PhaseSpaceDecayChannel
(
"tau-"
,0.2541,3,
"pi0"
,
"pi-"
,
"nu_tau"
);
102
table->
Insert
(mode);
103
// tau- -> pi0 + pi0 + pi- + nu_tau
104
mode =
new
G4PhaseSpaceDecayChannel
();
105
mode->
SetParent
(
"tau-"
);
106
mode->
SetBR
(0.0917);
107
mode->
SetNumberOfDaughters
(4);
108
mode->
SetDaughter
(0,
"pi0"
);
109
mode->
SetDaughter
(1,
"pi0"
);
110
mode->
SetDaughter
(2,
"pi-"
);
111
mode->
SetDaughter
(3,
"nu_tau"
);
112
table->
Insert
(mode);
113
// tau- -> pi- + pi- + pi+ + nu_tau
114
mode =
new
G4PhaseSpaceDecayChannel
();
115
mode->
SetParent
(
"tau-"
);
116
mode->
SetBR
(0.0946);
117
mode->
SetNumberOfDaughters
(4);
118
mode->
SetDaughter
(0,
"pi-"
);
119
mode->
SetDaughter
(1,
"pi-"
);
120
mode->
SetDaughter
(2,
"pi+"
);
121
mode->
SetDaughter
(3,
"nu_tau"
);
122
table->
Insert
(mode);
123
124
anInstance->
SetDecayTable
(table);
125
}
126
theInstance =
reinterpret_cast<
G4TauMinus
*
>
(anInstance);
127
return
theInstance;
128
}
129
130
G4TauMinus
*
G4TauMinus::TauMinusDefinition
()
131
{
132
return
Definition
();
133
}
134
135
G4TauMinus
*
G4TauMinus::TauMinus
()
136
{
137
return
Definition
();
138
}
139
140
G4ParticleDefinition::SetDecayTable
void SetDecayTable(G4DecayTable *aDecayTable)
python.hepunit.GeV
GeV
Definition:
hepunit.py:120
G4ParticleTable::FindParticle
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
Definition:
G4ParticleTable.cc:620
G4VDecayChannel::SetBR
void SetBR(G4double value)
Definition:
G4VDecayChannel.hh:329
G4TauMinus.hh
python.hepunit.MeV
MeV
Definition:
hepunit.py:117
python.hepunit.c_squared
c_squared
Definition:
hepunit.py:258
name
const XML_Char * name
Definition:
include/expat.h:151
python.hepunit.hbar_Planck
hbar_Planck
Definition:
hepunit.py:264
G4ParticleDefinition
Definition:
G4ParticleDefinition.hh:111
G4ParticleDefinition::G4ParticleDefinition
G4ParticleDefinition()
Definition:
G4ParticleDefinition.cc:203
G4TauMinus
Definition:
G4TauMinus.hh:50
G4VDecayChannel
Definition:
G4VDecayChannel.hh:101
G4TauMinus::Definition
static G4TauMinus * Definition()
Definition:
G4TauMinus.cc:54
G4DecayTable
Definition:
G4DecayTable.hh:50
G4ParticleTable.hh
G4VDecayChannel::SetNumberOfDaughters
void SetNumberOfDaughters(G4int value)
Definition:
G4VDecayChannel.cc:249
G4ParticleTable
Definition:
G4ParticleTable.hh:65
G4PhaseSpaceDecayChannel.hh
G4PhysicalConstants.hh
G4TauLeptonicDecayChannel
Definition:
G4TauLeptonicDecayChannel.hh:43
G4DecayTable::Insert
void Insert(G4VDecayChannel *aChannel)
Definition:
G4DecayTable.cc:60
G4ParticleDefinition::GetPDGMass
G4double GetPDGMass() const
Definition:
G4ParticleDefinition.hh:161
G4ParticleTable::GetParticleTable
static G4ParticleTable * GetParticleTable()
Definition:
G4ParticleTable.cc:95
G4TauMinus::TauMinusDefinition
static G4TauMinus * TauMinusDefinition()
Definition:
G4TauMinus.cc:130
G4VDecayChannel::SetParent
void SetParent(const G4ParticleDefinition *particle_type)
Definition:
G4VDecayChannel.cc:450
G4VDecayChannel::SetDaughter
void SetDaughter(G4int anIndex, const G4ParticleDefinition *particle_type)
Definition:
G4VDecayChannel.cc:308
G4PhaseSpaceDecayChannel
Definition:
G4PhaseSpaceDecayChannel.hh:45
G4TauLeptonicDecayChannel.hh
G4double
double G4double
Definition:
G4Types.hh:76
G4SystemOfUnits.hh
G4DecayTable.hh
ns
#define ns
Definition:
xmlparse.cc:597
G4TauMinus::TauMinus
static G4TauMinus * TauMinus()
Definition:
G4TauMinus.cc:135
python.hepunit.eplus
int eplus
Definition:
hepunit.py:100
G4ParticleDefinition::SetPDGMagneticMoment
void SetPDGMagneticMoment(G4double mageticMoment)
G4String
Definition:
examples/extended/parallel/TopC/ParN02/AnnotatedFiles/G4String.hh:45
Generated on Wed Apr 30 2014 15:55:06 for Geant4.10 by
1.8.7