1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/ChargedFinalState.hh"
namespace Rivet {
class LHCB_2012_I1119400 : public Analysis {
public:
/// @name Constructors etc.
//@{
/// Constructor
LHCB_2012_I1119400() : Analysis("LHCB_2012_I1119400"),
_p_min(5.0),
_pt_min(0.0),_pt1_edge(0.8), _pt2_edge(1.2),
//_eta_nbins(4),
_eta_min(2.5),
_eta_max(4.5)
{ }
//@}
public:
/// @name Analysis methods
//@{
/// Book histograms and initialise projections before the run
void init() {
fillMap(_partLftMap);
int id_shift = 0;
if (isCompatibleWithSqrtS(7000)) id_shift = 1;
// define ratios if second pdgid in pair is -1, it means that is a antiparticle/particle ratio
_ratiotype["pbarp"] = make_pair(2212, -1);
_ratiotype["kminuskplus"] = make_pair(321, -1);
_ratiotype["piminuspiplus"] = make_pair(211, -1);
_ratiotype["ppi"] = make_pair(2212, 211);
_ratiotype["kpi"] = make_pair(321, 211);
_ratiotype["pk"] = make_pair(2212, 321);
std::map<string, int > _hepdataid;
_hepdataid["pbarp"] = 1 + id_shift;
_hepdataid["kminuskplus"] = 3 + id_shift;
_hepdataid["piminuspiplus"] = 5 + id_shift;
_hepdataid["ppi"] = 7 + id_shift;
_hepdataid["kpi"] = 9 + id_shift;
_hepdataid["pk"] = 11 + id_shift;
std::map<std::string, std::pair<int, int> >::iterator it;
// booking histograms
for (it=_ratiotype.begin(); it!=_ratiotype.end(); it++) {
book(_h_ratio_lowpt [it->first], _hepdataid[it->first], 1, 1);
book(_h_ratio_midpt [it->first], _hepdataid[it->first], 1, 2);
book(_h_ratio_highpt[it->first], _hepdataid[it->first], 1, 3);
book(_h_num_lowpt [it->first], "TMP/num_l_"+it->first,refData(_hepdataid[it->first], 1, 1));
book(_h_num_midpt [it->first], "TMP/num_m_"+it->first,refData(_hepdataid[it->first], 1, 2));
book(_h_num_highpt [it->first], "TMP/num_h_"+it->first,refData(_hepdataid[it->first], 1, 3));
book(_h_den_lowpt [it->first], "TMP/den_l_"+it->first,refData(_hepdataid[it->first], 1, 1));
book(_h_den_midpt [it->first], "TMP/den_m_"+it->first,refData(_hepdataid[it->first], 1, 2));
book(_h_den_highpt [it->first], "TMP/den_h_"+it->first,refData(_hepdataid[it->first], 1, 3));
}
declare(ChargedFinalState(Cuts::etaIn(_eta_min, _eta_max) && Cuts::pT >= _pt_min*GeV), "CFS");
}
// Perform the per-event analysis
void analyze(const Event& event) {
const ChargedFinalState& cfs = apply<ChargedFinalState>(event, "CFS");
for (const Particle& p : cfs.particles()) {
int id = p.pid();
// continue if particle not a proton, a kaon or a pion
if ( !( (abs(id) == 211) || (abs(id) == 321) || (abs(id) == 2212))) {
continue;
}
// cut in momentum
const FourMomentum& qmom = p.momentum();
if (qmom.p3().mod() < _p_min) continue;
// Lifetime cut: ctau sum of all particle ancestors < 10^-9 m according to the paper (see eq. 5)
const double MAX_CTAU = 1.0e-9; // [m]
double ancestor_lftsum = getMotherLifeTimeSum(p);
if ( (ancestor_lftsum < 0.0) || (ancestor_lftsum > MAX_CTAU) ) continue;
double eta = qmom.eta();
double pT = qmom.pT();
std::map<std::string, std::pair<int, int> >::iterator it;
for (it=_ratiotype.begin(); it!=_ratiotype.end(); it++) {
// check what type of ratio is
if ((it->second.second)==-1) {
// check ptbin
if (pT < _pt1_edge) {
// filling histos for numerator and denominator
if (id == -abs(it->second.first)) _h_num_lowpt[it->first]->fill(eta);
if (id == abs(it->second.first)) _h_den_lowpt[it->first]->fill(eta);
}
else if (pT < _pt2_edge) {
// filling histos for numerator and denominator
if (id == -abs(it->second.first)) _h_num_midpt[it->first]->fill(eta);
if (id == abs(it->second.first)) _h_den_midpt[it->first]->fill(eta);
}
else {
// filling histos for numerator and denominator
if (id == -abs(it->second.first)) _h_num_highpt[it->first]->fill(eta);
if (id == abs(it->second.first)) _h_den_highpt[it->first]->fill(eta);
}
}
else {
// check what type of ratio is
if (pT < _pt1_edge) {
// filling histos for numerator and denominator
if (abs(id) == abs(it->second.first)) _h_num_lowpt[it->first]->fill(eta);
if (abs(id) == abs(it->second.second)) _h_den_lowpt[it->first]->fill(eta);
}
else if (pT < _pt2_edge) {
// filling histos for numerator and denominator
if (abs(id) == abs(it->second.first)) _h_num_midpt[it->first]->fill(eta);
if (abs(id) == abs(it->second.second)) _h_den_midpt[it->first]->fill(eta);
}
else {
// filling histos for numerator and denominator
if (abs(id) == abs(it->second.first)) _h_num_highpt[it->first]->fill(eta);
if (abs(id) == abs(it->second.second)) _h_den_highpt[it->first]->fill(eta);
}
}
}
}
}
// Generate the ratio histograms
void finalize() {
std::map<std::string, std::pair<int, int> >::iterator it;
// booking histograms
for (it=_ratiotype.begin(); it!=_ratiotype.end(); it++) {
divide(_h_num_lowpt[it->first], _h_den_lowpt[it->first], _h_ratio_lowpt[it->first]);
divide(_h_num_midpt[it->first], _h_den_midpt[it->first], _h_ratio_midpt[it->first]);
divide(_h_num_highpt[it->first], _h_den_highpt[it->first], _h_ratio_highpt[it->first]);
}
}
//@}
private:
// Get particle lifetime from hardcoded data
double getLifeTime(int pid) {
pid = abs(pid);
double lft = -1.0;
map<int, double>::iterator pPartLft = _partLftMap.find(pid);
// search stable particle list
if (pPartLft == _partLftMap.end()) {
if (pid <= 100) return 0.0;
for (size_t i=0; i < sizeof(_stablePDGIds)/sizeof(unsigned int); i++) {
if (pid == _stablePDGIds[i]) {
lft = 0.0;
break;
}
}
} else {
lft = (*pPartLft).second;
}
if (lft < 0.0 && PID::isHadron(pid)) {
MSG_WARNING("Lifetime map imcomplete --- " << pid
<< "... assume zero lifetime");
lft = 0.0;
}
return lft;
}
// Data members like post-cuts event weight counters go here
double getMotherLifeTimeSum(const Particle& p) {
if (p.genParticle() == nullptr) return -1.;
double lftSum = 0.;
double plft = 0.;
ConstGenParticlePtr part = p.genParticle();
ConstGenVertexPtr ivtx = part->production_vertex();
while(ivtx){
vector<ConstGenParticlePtr> part_in = HepMCUtils::particles(ivtx, Relatives::PARENTS);
if (part_in.size() < 1) { lftSum = -1.; break; };
part = part_in.at(0);
if ( !(part) ) { lftSum = -1.; break; };
ivtx = part->production_vertex();
if ( (part->pdg_id() == 2212) || !(ivtx) ) break; // reached beam
plft = getLifeTime(part->pdg_id());
if (plft < 0.) { lftSum = -1.; break; };
lftSum += plft;
};
return (lftSum * c_light);
}
/// @name Private variables
// Momentum threshold
double _p_min;
// The edges of the intervals of transversal momentum
double _pt_min;
double _pt1_edge;
double _pt2_edge;
// The limits of the pseudorapidity window
//int _eta_nbins;
double _eta_min;
double _eta_max;
// Map between PDG id and particle lifetimes in seconds
std::map<int, double> _partLftMap;
// Set of PDG Ids for stable particles (PDG Id <= 100 are considered stable)
static const int _stablePDGIds[205];
// Define histograms
// ratio
std::map<std::string, Scatter2DPtr > _h_ratio_lowpt;
std::map<std::string, Scatter2DPtr > _h_ratio_midpt;
std::map<std::string, Scatter2DPtr > _h_ratio_highpt;
// numerator
std::map<std::string, Histo1DPtr > _h_num_lowpt;
std::map<std::string, Histo1DPtr > _h_num_midpt;
std::map<std::string, Histo1DPtr > _h_num_highpt;
// denominator
std::map<std::string, Histo1DPtr > _h_den_lowpt;
std::map<std::string, Histo1DPtr > _h_den_midpt;
std::map<std::string, Histo1DPtr > _h_den_highpt;
// Map of ratios and IDs of numerator and denominator
std::map<string, pair<int,int> > _ratiotype;
// Fill the PDG Id to Lifetime[seconds] map
// Data was extracted from LHCb Particle Table through LHCb::ParticlePropertySvc
bool fillMap(map<int, double> &m) {
m[6] = 4.707703E-25; m[11] = 1.E+16; m[12] = 1.E+16;
m[13] = 2.197019E-06; m[14] = 1.E+16; m[15] = 2.906E-13; m[16] = 1.E+16; m[22] = 1.E+16;
m[23] = 2.637914E-25; m[24] = 3.075758E-25; m[25] = 9.4E-26; m[35] = 9.4E-26;
m[36] = 9.4E-26; m[37] = 9.4E-26; m[84] = 3.335641E-13; m[85] = 1.290893E-12;
m[111] = 8.4E-17; m[113] = 4.405704E-24; m[115] = 6.151516E-24; m[117] = 4.088275E-24;
m[119] = 2.102914E-24; m[130] = 5.116E-08; m[150] = 1.525E-12; m[211] = 2.6033E-08;
m[213] = 4.405704E-24; m[215] = 6.151516E-24; m[217] = 4.088275E-24; m[219] = 2.102914E-24;
m[221] = 5.063171E-19; m[223] = 7.752794E-23; m[225] = 3.555982E-24; m[227] = 3.91793E-24;
m[229] = 2.777267E-24; m[310] = 8.953E-11; m[313] = 1.308573E-23; m[315] = 6.038644E-24;
m[317] = 4.139699E-24; m[319] = 3.324304E-24; m[321] = 1.238E-08; m[323] = 1.295693E-23;
m[325] = 6.682357E-24; m[327] = 4.139699E-24; m[329] = 3.324304E-24; m[331] = 3.210791E-21;
m[333] = 1.545099E-22; m[335] = 9.016605E-24; m[337] = 7.565657E-24; m[350] = 1.407125E-12;
m[411] = 1.04E-12; m[413] = 6.856377E-21; m[415] = 1.778952E-23; m[421] = 4.101E-13;
m[423] = 1.000003E-19; m[425] = 1.530726E-23; m[431] = 5.E-13; m[433] = 1.000003E-19;
m[435] = 3.291061E-23; m[441] = 2.465214E-23; m[443] = 7.062363E-21; m[445] = 3.242425E-22;
m[510] = 1.525E-12; m[511] = 1.525E-12; m[513] = 1.000019E-19; m[515] = 1.31E-23;
m[521] = 1.638E-12; m[523] = 1.000019E-19; m[525] = 1.31E-23; m[530] = 1.536875E-12;
m[531] = 1.472E-12; m[533] = 1.E-19; m[535] = 1.31E-23; m[541] = 4.5E-13;
m[553] = 1.218911E-20; m[1112] = 4.539394E-24; m[1114] = 5.578069E-24; m[1116] = 1.994582E-24;
m[1118] = 2.269697E-24; m[1212] = 4.539394E-24; m[1214] = 5.723584E-24; m[1216] = 1.994582E-24;
m[1218] = 1.316424E-24; m[2112] = 8.857E+02; m[2114] = 5.578069E-24; m[2116] = 4.388081E-24;
m[2118] = 2.269697E-24; m[2122] = 4.539394E-24; m[2124] = 5.723584E-24; m[2126] = 1.994582E-24;
m[2128] = 1.316424E-24; m[2212] = 1.E+16; m[2214] = 5.578069E-24; m[2216] = 4.388081E-24;
m[2218] = 2.269697E-24; m[2222] = 4.539394E-24; m[2224] = 5.578069E-24; m[2226] = 1.994582E-24;
m[2228] = 2.269697E-24; m[3112] = 1.479E-10; m[3114] = 1.670589E-23; m[3116] = 5.485102E-24;
m[3118] = 3.656734E-24; m[3122] = 2.631E-10; m[3124] = 4.219309E-23; m[3126] = 8.227653E-24;
m[3128] = 3.291061E-24; m[3212] = 7.4E-20; m[3214] = 1.828367E-23; m[3216] = 5.485102E-24;
m[3218] = 3.656734E-24; m[3222] = 8.018E-11; m[3224] = 1.838582E-23; m[3226] = 5.485102E-24;
m[3228] = 3.656734E-24; m[3312] = 1.639E-10; m[3314] = 6.648608E-23; m[3322] = 2.9E-10;
m[3324] = 7.233101E-23; m[3334] = 8.21E-11; m[4112] = 2.991874E-22; m[4114] = 4.088274E-23;
m[4122] = 2.E-13; m[4132] = 1.12E-13; m[4212] = 3.999999E-22; m[4214] = 3.291061E-22;
m[4222] = 2.951624E-22; m[4224] = 4.417531E-23; m[4232] = 4.42E-13; m[4332] = 6.9E-14;
m[4412] = 3.335641E-13; m[4422] = 3.335641E-13; m[4432] = 3.335641E-13; m[5112] = 1.E-19;
m[5122] = 1.38E-12; m[5132] = 1.42E-12; m[5142] = 1.290893E-12; m[5212] = 1.E-19;
m[5222] = 1.E-19; m[5232] = 1.42E-12; m[5242] = 1.290893E-12; m[5312] = 1.E-19;
m[5322] = 1.E-19; m[5332] = 1.55E-12; m[5342] = 1.290893E-12; m[5442] = 1.290893E-12;
m[5512] = 1.290893E-12; m[5522] = 1.290893E-12; m[5532] = 1.290893E-12; m[5542] = 1.290893E-12;
m[10111] = 2.48382E-24; m[10113] = 4.635297E-24; m[10115] = 2.54136E-24; m[10211] = 2.48382E-24;
m[10213] = 4.635297E-24; m[10215] = 2.54136E-24; m[10223] = 1.828367E-24; m[10225] = 3.636531E-24;
m[10311] = 2.437823E-24; m[10313] = 7.313469E-24; m[10315] = 3.538775E-24;
m[10321] = 2.437823E-24; m[10323] = 7.313469E-24; m[10325] = 3.538775E-24;
m[10331] = 4.804469E-24; m[10411] = 4.38E-24; m[10413] = 3.29E-23; m[10421] = 4.38E-24;
m[10423] = 3.22653E-23; m[10431] = 6.5821E-22; m[10433] = 6.5821E-22; m[10441] = 6.453061E-23;
m[10511] = 4.39E-24; m[10513] = 1.65E-23; m[10521] = 4.39E-24; m[10523] = 1.65E-23;
m[10531] = 4.39E-24; m[10533] = 1.65E-23; m[11114] = 2.194041E-24; m[11116] = 1.828367E-24;
m[11212] = 1.880606E-24; m[11216] = 1.828367E-24; m[12112] = 2.194041E-24;
m[12114] = 2.194041E-24; m[12116] = 5.063171E-24; m[12126] = 1.828367E-24;
m[12212] = 2.194041E-24; m[12214] = 2.194041E-24; m[12216] = 5.063171E-24;
m[12224] = 2.194041E-24; m[12226] = 1.828367E-24; m[13112] = 6.582122E-24; m[13114] = 1.09702E-23;
m[13116] = 5.485102E-24; m[13122] = 1.316424E-23; m[13124] = 1.09702E-23; m[13126] = 6.928549E-24;
m[13212] = 6.582122E-24; m[13214] = 1.09702E-23; m[13216] = 5.485102E-24; m[13222] = 6.582122E-24;
m[13224] = 1.09702E-23; m[13226] = 5.485102E-24; m[13314] = 2.742551E-23;
m[13324] = 2.742551E-23; m[14122] = 1.828367E-22; m[20022] = 1.E+16; m[20113] = 1.567172E-24;
m[20213] = 1.567172E-24; m[20223] = 2.708692E-23; m[20313] = 3.782829E-24;
m[20315] = 2.384827E-24; m[20323] = 3.782829E-24; m[20325] = 2.384827E-24;
m[20333] = 1.198929E-23; m[20413] = 2.63E-24; m[20423] = 2.63E-24; m[20433] = 6.5821E-22;
m[20443] = 7.395643E-22; m[20513] = 2.63E-24; m[20523] = 2.63E-24; m[20533] = 2.63E-24;
m[21112] = 2.632849E-24; m[21114] = 3.291061E-24; m[21212] = 2.632849E-24;
m[21214] = 6.582122E-24; m[22112] = 4.388081E-24; m[22114] = 3.291061E-24;
m[22122] = 2.632849E-24; m[22124] = 6.582122E-24; m[22212] = 4.388081E-24;
m[22214] = 3.291061E-24; m[22222] = 2.632849E-24; m[22224] = 3.291061E-24;
m[23112] = 7.313469E-24; m[23114] = 2.991874E-24; m[23122] = 4.388081E-24;
m[23124] = 6.582122E-24; m[23126] = 3.291061E-24; m[23212] = 7.313469E-24;
m[23214] = 2.991874E-24; m[23222] = 7.313469E-24; m[23224] = 2.991874E-24;
m[30113] = 2.632849E-24; m[30213] = 2.632849E-24; m[30221] = 1.880606E-24;
m[30223] = 2.089563E-24; m[30313] = 2.056913E-24; m[30323] = 2.056913E-24;
m[30443] = 2.419898E-23; m[31114] = 1.880606E-24; m[31214] = 3.291061E-24;
m[32112] = 3.989164E-24; m[32114] = 1.880606E-24; m[32124] = 3.291061E-24;
m[32212] = 3.989164E-24; m[32214] = 1.880606E-24; m[32224] = 1.880606E-24;
m[33122] = 1.880606E-23; m[42112] = 6.582122E-24; m[42212] = 6.582122E-24;
m[43122] = 2.194041E-24; m[53122] = 4.388081E-24; m[100111] = 1.645531E-24;
m[100113] = 1.64553E-24; m[100211] = 1.645531E-24; m[100213] = 1.64553E-24;
m[100221] = 1.196749E-23; m[100223] = 3.061452E-24; m[100313] = 2.837122E-24;
m[100323] = 2.837122E-24; m[100331] = 4.459432E-25; m[100333] = 4.388081E-24;
m[100441] = 4.701516E-23; m[100443] = 2.076379E-21; m[100553] = 2.056913E-20;
m[200553] = 3.242425E-20; m[300553] = 3.210791E-23; m[9000111] = 8.776163E-24;
m[9000211] = 8.776163E-24; m[9000443] = 8.227652E-24; m[9000553] = 5.983747E-24;
m[9010111] = 3.164482E-24; m[9010211] = 3.164482E-24; m[9010221] = 9.403031E-24;
m[9010443] = 8.438618E-24; m[9010553] = 8.3318E-24; m[9020443] = 1.061633E-23;
m[9030221] = 6.038644E-24; m[9042413] = 2.07634E-21; m[9050225] = 1.394517E-24;
m[9060225] = 3.291061E-24; m[9080225] = 4.388081E-24; m[9090225] = 2.056913E-24;
m[9910445] = 2.07634E-21; m[9920443] = 2.07634E-21;
return true;
}
};
const int LHCB_2012_I1119400::_stablePDGIds[205] = {
311, 543, 545, 551, 555, 557, 1103, 2101, 2103, 2203, 3101, 3103, 3201, 3203, 3303,
4101, 4103, 4124, 4201, 4203, 4301, 4303, 4312, 4314, 4322, 4324, 4334, 4403, 4414,
4424, 4434, 4444, 5101, 5103, 5114, 5201, 5203, 5214, 5224, 5301, 5303, 5314, 5324,
5334, 5401, 5403, 5412, 5414, 5422, 5424, 5432, 5434, 5444, 5503, 5514, 5524, 5534,
5544, 5554, 10022, 10333, 10335, 10443, 10541, 10543, 10551, 10553, 10555, 11112,
12118, 12122, 12218, 12222, 13316, 13326, 20543, 20553, 20555, 23314, 23324, 30343,
30353, 30363, 30553, 33314, 33324, 41214, 42124, 52114, 52214, 100311, 100315, 100321,
100325, 100411, 100413, 100421, 100423, 100551, 100555, 100557, 110551, 110553, 110555,
120553, 120555, 130553, 200551, 200555, 210551, 210553, 220553, 1000001, 1000002,
1000003, 1000004, 1000005, 1000006, 1000011, 1000012, 1000013, 1000014, 1000015,
1000016, 1000021, 1000022, 1000023, 1000024, 1000025, 1000035, 1000037, 1000039,
2000001, 2000002, 2000003, 2000004, 2000005, 2000006, 2000011, 2000012, 2000013,
2000014, 2000015, 2000016, 3000111, 3000113, 3000211, 3000213, 3000221, 3000223,
3000331, 3100021, 3100111, 3100113, 3200111, 3200113, 3300113, 3400113, 4000001,
4000002, 4000011, 4000012, 5000039, 9000221, 9900012, 9900014, 9900016, 9900023,
9900024, 9900041, 9900042 };
// Plugin hook
RIVET_DECLARE_PLUGIN(LHCB_2012_I1119400);
}
|