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src
Validation
EventGenerator
src
TauDecay.cc
Go to the documentation of this file.
1
#include "
Validation/EventGenerator/interface/TauDecay.h
"
2
#include "
Validation/EventGenerator/interface/PdtPdgMini.h
"
3
4
5
#include <iomanip>
6
#include <cstdlib>
7
#include <iostream>
8
9
TauDecay::TauDecay
(){
10
Reset
();
11
}
12
13
TauDecay::~TauDecay
(){
14
15
}
16
17
void
TauDecay::Reset
(){
18
n_pi
=0;
19
n_pi0
=0;
20
n_K
=0;
21
n_K0L
=0;
22
n_K0S
=0;
23
n_gamma
=0;
24
n_nu
=0;
25
n_e
=0;
26
n_mu
=0;
27
n_a1
=0;
28
n_a10
=0;
29
n_rho
=0;
30
n_rho0
=0;
31
n_eta
=0;
32
n_omega
=0;
33
n_Kstar0
=0;
34
n_Kstar
=0;
35
unknown
=0;
36
}
37
38
bool
TauDecay::isTauFinalStateParticle
(
int
pdgid){
39
int
id
=
abs
(pdgid);
40
if
(
id
==
PdtPdgMini::e_minus
)
return
true
;
// e+-
41
if
(
id
==
PdtPdgMini::nu_e
)
return
true
;
// nu_e
42
if
(
id
==
PdtPdgMini::mu_minus
)
return
true
;
// mu+-
43
if
(
id
==
PdtPdgMini::nu_mu
)
return
true
;
// nu_mu
44
if
(
id
==
PdtPdgMini::nu_tau
)
return
true
;
// nu_tau
45
if
(
id
==
PdtPdgMini::gamma
)
return
true
;
// gamma happends in generator
46
if
(
id
==
PdtPdgMini::pi0
)
return
true
;
// pi0
47
if
(
id
==
PdtPdgMini::pi_plus
)
return
true
;
// pi+-
48
if
(
id
==
PdtPdgMini::K_L0
)
return
true
;
// K0L
49
if
(
id
==
PdtPdgMini::K_S0
)
return
true
;
// KS
50
if
(
id
==
PdtPdgMini::K_plus
)
return
true
;
// K+-
51
return
false
;
52
}
53
54
bool
TauDecay::isTauParticleCounter
(
int
pdgid){
55
int
id
=
abs
(pdgid);
56
//count particles
57
if
(
id
==
PdtPdgMini::pi_plus
) {
n_pi
++;
return
true
;}
58
if
(
id
==
PdtPdgMini::pi0
) {
n_pi0
++;
return
true
;}
59
if
(
id
==
PdtPdgMini::K_plus
) {
n_K
++;
return
true
;}
60
if
(
id
==
PdtPdgMini::K_L0
) {
n_K0L
++;
return
true
;}
61
if
(
id
==
PdtPdgMini::K_S0
) {
n_K0S
++;
return
true
;}
62
if
(
id
==
PdtPdgMini::gamma
) {
n_gamma
++;
return
true
;}
63
if
(
id
==
PdtPdgMini::nu_tau
||
64
id
==
PdtPdgMini::nu_e
||
65
id
==
PdtPdgMini::nu_mu
) {
n_nu
++;
return
true
;}
66
if
(
id
==
PdtPdgMini::e_minus
) {
n_e
++;
return
true
;}
67
if
(
id
==
PdtPdgMini::mu_minus
) {
n_mu
++;
return
true
;}
68
return
false
;
69
}
70
71
bool
TauDecay::isTauResonanceCounter
(
int
pdgid){
72
int
id
=
abs
(pdgid);
73
//count resonances
74
if
(
id
==
PdtPdgMini::a_1_plus
) {
n_a1
++;
return
true
;}
75
if
(
id
==
PdtPdgMini::a_10
) {
n_a10
++;
return
true
;}
76
if
(
id
==
PdtPdgMini::rho_plus
) {
n_rho
++;
return
true
;}
77
if
(
id
==
PdtPdgMini::rho0
) {
n_rho0
++;
return
true
;}
78
if
(
id
==
PdtPdgMini::eta
) {
n_eta
++;
return
true
;}
79
if
(
id
==
PdtPdgMini::omega
) {
n_omega
++;
return
true
;}
80
//if(id==PdtPdgMini::K_S0) { n_K0S++; return true;}
81
if
(
id
==
PdtPdgMini::K_star0
) {
n_Kstar0
++;
return
true
;}
82
if
(
id
==
PdtPdgMini::K_star_plus
){
n_Kstar
++;
return
true
;}
83
if
(
id
==
PdtPdgMini::W_plus
) {
return
true
;}
84
unknown
++;
85
return
false
;
86
}
87
88
void
TauDecay::ClassifyDecayMode
(
unsigned
int
&JAK_ID,
unsigned
int
&TauBitMask){
89
//Reset Bits
90
JAK_ID=0;
91
TauBitMask=0;
92
// Classify according to JAK and TauDecayStructure
94
//
95
// Exlusive modes remove first
96
//
97
if
(
n_pi
>=1 &&
n_pi0
>=1 &&
n_nu
==1 &&
n_eta
==1){
// eta modes
98
JAK_ID=
JAK_ETAPIPI0
;
99
TauBitMask=
OneProng
;
100
if
(
n_pi0
==1)TauBitMask+=
OnePi0
;
101
if
(
n_pi0
==2)TauBitMask+=
TwoPi0
;
102
if
(
n_pi0
==3)TauBitMask+=
ThreePi0
;
103
ClassifyDecayResonance
(TauBitMask);
104
return
;
105
}
106
//JAK_K0BK0PI
107
if
((
n_K0S
+
n_K0L
==2 &&
n_pi
==1 &&
n_pi0
==0 &&
n_K
==0 &&
n_nu
==1) || (
n_pi
>=1 &&
n_pi0
==0 &&
n_K0L
+
n_K0S
==2 &&
n_K
==0 &&
n_nu
==1) ){
108
JAK_ID=
JAK_K0BK0PI
;
109
TauBitMask=
OneProng
;
110
if
(
n_pi
>1)TauBitMask+=
KS0_to_pipi
;
111
ClassifyDecayResonance
(TauBitMask);
112
return
;
113
}
114
//if(n_Kstar==1){ //JAK_KSTAR K0SPi && KPi0
115
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
>=1 &&
n_pi0
==0 &&
n_K
==0 &&
n_K0L
+
n_K0S
==1 &&
n_nu
==1){
116
JAK_ID=
JAK_KSTAR
;
117
TauBitMask=
OneProng
;
118
if
(
n_pi
==3)TauBitMask+=
KS0_to_pipi
;
119
ClassifyDecayResonance
(TauBitMask);
120
return
;
121
}
122
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==0 &&
n_pi0
==1 &&
n_K
==1 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
123
JAK_ID=
JAK_KSTAR
;
124
TauBitMask=
OneProng
;
125
ClassifyDecayResonance
(TauBitMask);
126
return
;
127
}
128
//}
129
//JAK_PIK0PI0
130
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
>=1 &&
n_pi0
==1 &&
n_K
==0 &&
n_K0L
+
n_K0S
==1 &&
n_nu
==1){
131
JAK_ID=
JAK_PIK0PI0
;
132
TauBitMask=
OneProng
;
133
TauBitMask+=
OnePi0
;
134
if
(
n_pi
==3)TauBitMask+=
KS0_to_pipi
;
135
ClassifyDecayResonance
(TauBitMask);
136
return
;
137
}
138
//JAK_KK0B
139
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi0
==0 &&
n_K
==1 &&
n_K0L
+
n_K0S
==1 &&
n_nu
==1){
140
JAK_ID=
JAK_KK0B
;
141
TauBitMask=
OneProng
;
142
if
(
n_pi
==2)TauBitMask+=
KS0_to_pipi
;
143
return
;
144
}
145
//JAK_ID=JAK_KK0BPI0
146
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi0
==1 &&
n_K
==1 &&
n_K0L
+
n_K0S
==1 &&
n_nu
==1){
147
JAK_ID=
JAK_KK0BPI0
;
148
TauBitMask=
OneProng
;
149
TauBitMask+=
OnePi0
;
150
if
(
n_pi
==2)TauBitMask+=
KS0_to_pipi
;
151
ClassifyDecayResonance
(TauBitMask);
152
return
;
153
}
154
155
156
//Safty handelling for exlusive modes
157
if
(
n_K0L
!=0){
158
std::cout
<<
"Unknown mode with KL0: n_e "
<<
n_e
<<
" n_mu "
<<
n_mu
<<
" n_pi "
<<
n_pi
<<
" n_pi0 "
<<
n_pi0
<<
" n_K "
<<
n_K
<<
" n_K0L "
<<
n_K0L
<<
" n_K0S "
<<
n_K0S
<<
" n_nu "
<<
n_nu
<<
" n_gamma "
<<
n_gamma
159
<< std::endl;
160
return
;
161
}
162
if
(
n_K0S
!=0){
163
std::cout
<<
"Unknown mode with KS0: n_e "
<<
n_e
<<
" n_mu "
<<
n_mu
<<
" n_pi "
<<
n_pi
<<
" n_pi0 "
<<
n_pi0
<<
" n_K "
<<
n_K
<<
" n_K0L "
<<
n_K0L
<<
" n_K0S "
<<
n_K0S
<<
" n_nu "
<<
n_nu
<<
" n_gamma "
<<
n_gamma
164
<< std::endl;
165
return
;
166
}
167
if
(
n_eta
!=0){
168
std::cout
<<
"Unknown mode with eta: n_e "
<<
n_e
<<
" n_mu "
<<
n_mu
<<
" n_pi "
<<
n_pi
<<
" n_pi0 "
<<
n_pi0
<<
" n_K "
<<
n_K
<<
" n_K0L "
<<
n_K0L
<<
" n_K0S "
<<
n_K0S
<<
" n_nu "
<<
n_nu
<<
" n_gamma "
<<
n_gamma
169
<< std::endl;
170
return
;
171
}
172
173
174
175
if
(
n_pi
+
n_K
+
n_e
+
n_mu
==1)TauBitMask=
OneProng
;
176
if
(
n_pi
+
n_K
==3)TauBitMask=
ThreeProng
;
177
if
(
n_pi
+
n_K
==5)TauBitMask=
FiveProng
;
178
if
(
n_pi0
==1)TauBitMask+=
OnePi0
;
179
if
(
n_pi0
==2)TauBitMask+=
TwoPi0
;
180
if
(
n_pi0
==3)TauBitMask+=
ThreePi0
;
181
ClassifyDecayResonance
(TauBitMask);
183
//
184
// Standard modes
185
//
186
if
(
n_e
==1 &&
n_mu
==0 &&
n_pi
==0 &&
n_pi0
==0 &&
n_K
==0 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==2){
187
JAK_ID=
JAK_ELECTRON
;
188
return
;
189
}
190
if
(
n_e
==0 &&
n_mu
==1 &&
n_pi
==0 &&
n_pi0
==0 &&
n_K
==0 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==2){
191
JAK_ID=
JAK_MUON
;
192
return
;
193
}
194
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==1 &&
n_pi0
==0 &&
n_K
==0 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
195
JAK_ID=
JAK_PION
;
196
return
;
197
}
198
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==1 &&
n_pi0
==1 &&
n_K
==0 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1
/*&& n_rho==1*/
){
199
JAK_ID=
JAK_RHO_PIPI0
;
200
return
;
201
}
202
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==1 &&
n_pi0
==2 &&
n_K
==0 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
203
JAK_ID=
JAK_A1_3PI
;
204
return
;
205
}
206
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==3 &&
n_pi0
==0 &&
n_K
==0 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
207
JAK_ID=
JAK_A1_3PI
;
208
return
;
209
}
210
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==0 &&
n_pi0
==0 &&
n_K
==1 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
211
JAK_ID=
JAK_KAON
;
212
return
;
213
}
214
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==3 &&
n_pi0
==1 &&
n_K
==0 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
215
JAK_ID=
JAK_3PIPI0
;
216
return
;
217
}
218
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==1 &&
n_pi0
==3 &&
n_K
==0 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
219
JAK_ID=
JAK_PI3PI0
;
220
return
;
221
}
222
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==3 &&
n_pi0
==2 &&
n_K
==0 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
223
JAK_ID=
JAK_3PI2PI0
;
224
return
;
225
}
226
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==5 &&
n_pi0
==0 &&
n_K
==0 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
227
JAK_ID=
JAK_5PI
;
228
return
;
229
}
230
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==5 &&
n_pi0
==1 &&
n_K
==0 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
231
JAK_ID=
JAK_5PIPI0
;
232
return
;
233
}
234
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==3 &&
n_pi0
==3 &&
n_K
==0 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
235
JAK_ID=
JAK_3PI3PI0
;
236
return
;
237
}
238
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==1 &&
n_pi0
==0 &&
n_K
==2 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
239
JAK_ID=
JAK_KPIK
;
240
return
;
241
}
242
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==0 &&
n_pi0
==2 &&
n_K
==1 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
243
JAK_ID=
JAK_K2PI0
;
244
return
;
245
}
246
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==2 &&
n_pi0
==0 &&
n_K
==1 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1){
247
JAK_ID=
JAK_KPIPI
;
248
return
;
249
}
250
if
(
n_e
==0 &&
n_mu
==0 &&
n_pi
==1 &&
n_pi0
==1 &&
n_K
==0 &&
n_K0L
==0 &&
n_K0S
==0 &&
n_nu
==1 &&
n_gamma
>=1 &&
n_rho
==0){
251
JAK_ID=
JAK_PIPI0GAM
;
252
return
;
253
}
254
std::cout
<<
"Tau Mode not found: n_e "
<<
n_e
<<
" n_mu "
<<
n_mu
<<
" n_pi "
<<
n_pi
<<
" n_pi0 "
<<
n_pi0
<<
" n_K "
<<
n_K
<<
" n_K0L "
<<
n_K0L
<<
" n_K0S "
<<
n_K0S
<<
" n_nu "
<<
n_nu
<<
" n_gamma "
<<
n_gamma
<< std::endl;
255
JAK_ID=
JAK_UNKNOWN
;
256
}
257
258
void
TauDecay::ClassifyDecayResonance
(
unsigned
int
&TauBitMask){
259
// Add Resonance info to TauBitMask
260
if
(
n_a1
>0) TauBitMask+=
Res_a1_pm
;
261
if
(
n_a10
>0) TauBitMask+=
Res_a1_0
;
262
if
(
n_rho
>0) TauBitMask+=
Res_rho_pm
;
263
if
(
n_rho0
>0) TauBitMask+=
Res_rho_0
;
264
if
(
n_eta
>0) TauBitMask+=
Res_eta
;
265
if
(
n_omega
>0) TauBitMask+=
Res_omega
;
266
if
(
n_Kstar
>0) TauBitMask+=
Res_Kstar_pm
;
267
if
(
n_Kstar0
>0) TauBitMask+=
Res_Kstar_0
;
268
}
TauDecay::JAK_3PI2PI0
Definition:
TauDecay.h:61
TauDecay::JAK_5PIPI0
Definition:
TauDecay.h:63
TauDecay::JAK_PI3PI0
Definition:
TauDecay.h:60
TauDecay::Res_Kstar_pm
Definition:
TauDecay.h:91
TauDecay::n_pi
unsigned int n_pi
Definition:
TauDecay.h:123
TauDecay::JAK_RHO_PIPI0
Definition:
TauDecay.h:55
TauDecay::Res_eta
Definition:
TauDecay.h:89
TauDecay::Reset
void Reset()
Definition:
TauDecay.cc:17
TauDecay::Res_Kstar_0
Definition:
TauDecay.h:92
TauDecay::JAK_K2PI0
Definition:
TauDecay.h:68
TauDecay::JAK_3PI3PI0
Definition:
TauDecay.h:64
TauDecay::unknown
unsigned int unknown
Definition:
TauDecay.h:124
TauDecay::TwoPi0
Definition:
TauDecay.h:83
TauDecay::JAK_KSTAR
Definition:
TauDecay.h:58
TauDecay::n_nu
unsigned int n_nu
Definition:
TauDecay.h:123
TauDecay::~TauDecay
~TauDecay()
Definition:
TauDecay.cc:13
TauDecay::JAK_MUON
Definition:
TauDecay.h:53
abs
#define abs(x)
Definition:
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PdtPdgMini.h
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TauDecay.h:87
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TauDecay.h:123
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TauDecay.h:123
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