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[u/mrichter/AliRoot.git] / PWG2 / SPECTRA / AliAnalysisTaskCheckPerformanceCascade.cxx
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b67ec6f7 1/*************************************************************** *
2 * Authors : Antonin Maire, Boris Hippolyte
3 * Contributors are mentioned in the code where appropriate. *
4 * *
5 * Permission to use, copy, modify and distribute this software and its *
6 * documentation strictly for non-commercial purposes is hereby granted *
7 * without fee, provided that the above copyright notice appears in all *
8 * copies and that both the copyright notice and this permission notice *
9 * appear in the supporting documentation. The authors make no claims *
10 * about the suitability of this software for any purpose. It is *
11 * provided "as is" without express or implied warranty. *
12 **************************************************************************/
13
14//-----------------------------------------------------------------
15// AliAnalysisTaskCheckPerformanceCascade class
16// This task is for a performance study of cascade identification.
17// It works with MC info and ESD/AOD tree.
18// Origin : A.Maire Mar2009, antonin.maire@ires.in2p3.fr
19//-----------------------------------------------------------------
20
21
6b843db3 22#include <Riostream.h>
b67ec6f7 23
24#include "TList.h"
25#include "TFile.h"
26#include "TH1F.h"
27#include "TH2F.h"
28#include "TCanvas.h"
29#include "TParticle.h"
30#include "TMath.h"
31
32#include "AliLog.h"
33#include "AliHeader.h"
34#include "AliMCEvent.h"
35#include "AliStack.h"
36#include "AliInputEventHandler.h"
37
38#include "AliESDEvent.h"
39#include "AliESDcascade.h"
40
41#include "AliAODEvent.h"
42
43#include "AliAnalysisTaskCheckPerformanceCascade.h"
44
45ClassImp(AliAnalysisTaskCheckPerformanceCascade)
46
47
48
49 //_____Dummy constructor________________________________________________________________
50AliAnalysisTaskCheckPerformanceCascade::AliAnalysisTaskCheckPerformanceCascade()
51: AliAnalysisTaskSE(), // <- take care to AliAnalysisTask( empty )
52 fDebugCascade(0), fAnalysisType("ESD"), fCollidingSystems(0),
53
54 // - Cascade part initialisation
55fListHistCascade(0),
56 fHistMCTrackMultiplicity(0),
57
58 fHistEtaGenProton(0),
59 fHistEtaGenAntiProton(0),
60
61 // Xi-
62 fHistEtaGenCascXiMinus(0),
ff0753e1 63 f2dHistGenPtVsGenYGenXiMinus(0),
b67ec6f7 64
65 fHistThetaGenCascXiMinus(0),
ff0753e1 66 f2dHistGenPtVsGenYFdblXiMinus(0),
b67ec6f7 67
68 fHistThetaLambdaXiMinus(0),
69 fHistThetaBachXiMinus(0),
70
71 fHistThetaMesDghterXiMinus(0),
72 fHistThetaBarDghterXiMinus(0),
73
74 fHistPtBachXiMinus(0),
75 fHistPtMesDghterXiMinus(0),
76 fHistPtBarDghterXiMinus(0),
77
78
79 // Xi+
80 fHistEtaGenCascXiPlus(0),
ff0753e1 81 f2dHistGenPtVsGenYGenXiPlus(0),
b67ec6f7 82
83 fHistThetaGenCascXiPlus(0),
ff0753e1 84 f2dHistGenPtVsGenYFdblXiPlus(0),
b67ec6f7 85
86 fHistThetaLambdaXiPlus(0),
87 fHistThetaBachXiPlus(0),
88
89 fHistThetaMesDghterXiPlus(0),
90 fHistThetaBarDghterXiPlus(0),
91
92 fHistPtBachXiPlus(0),
93 fHistPtMesDghterXiPlus(0),
94 fHistPtBarDghterXiPlus(0),
95
96 // Omega-
97 fHistEtaGenCascOmegaMinus(0),
ff0753e1 98 f2dHistGenPtVsGenYGenOmegaMinus(0),
b67ec6f7 99
100 fHistThetaGenCascOmegaMinus(0),
ff0753e1 101 f2dHistGenPtVsGenYFdblOmegaMinus(0),
b67ec6f7 102
103 fHistThetaLambdaOmegaMinus(0),
104 fHistThetaBachOmegaMinus(0),
105
106 fHistThetaMesDghterOmegaMinus(0),
107 fHistThetaBarDghterOmegaMinus(0),
108
109 fHistPtBachOmegaMinus(0),
110 fHistPtMesDghterOmegaMinus(0),
111 fHistPtBarDghterOmegaMinus(0),
112
113
114 // Omega+
115 fHistEtaGenCascOmegaPlus(0),
ff0753e1 116 f2dHistGenPtVsGenYGenOmegaPlus(0),
b67ec6f7 117
118 fHistThetaGenCascOmegaPlus(0),
ff0753e1 119 f2dHistGenPtVsGenYFdblOmegaPlus(0),
b67ec6f7 120
121 fHistThetaLambdaOmegaPlus(0),
122 fHistThetaBachOmegaPlus(0),
123
124 fHistThetaMesDghterOmegaPlus(0),
125 fHistThetaBarDghterOmegaPlus(0),
126
127 fHistPtBachOmegaPlus(0),
128 fHistPtMesDghterOmegaPlus(0),
129 fHistPtBarDghterOmegaPlus(0),
130
131// Part 2 - Association to MC
132
133 fHistMassXiMinus(0),
134 fHistMassXiPlus(0),
135 fHistMassOmegaMinus(0),
136 fHistMassOmegaPlus(0),
f87cd3db 137
138 // - Effective mass histos with combined PID
139 fHistMassWithCombPIDXiMinus(0), fHistMassWithCombPIDXiPlus(0),
140 fHistMassWithCombPIDOmegaMinus(0), fHistMassWithCombPIDOmegaPlus(0),
f870ac91 141
142 // - PID Probability versus MC Pt(bachelor track)
143 f2dHistPIDprobaKaonVsMCPtBach(0), f2dHistPIDprobaPionVsMCPtBach(0),
f87cd3db 144
145 // - Effective mass histos with perfect MC PID on the bachelor
146 fHistMassWithMcPIDXiMinus(0), fHistMassWithMcPIDXiPlus(0),
147 fHistMassWithMcPIDOmegaMinus(0), fHistMassWithMcPIDOmegaPlus(0),
b67ec6f7 148
ff0753e1 149
b67ec6f7 150 // - Effective mass histos for the cascade candidates associated with MC
151 fHistAsMCMassXiMinus(0),
152 fHistAsMCMassXiPlus(0),
153 fHistAsMCMassOmegaMinus(0),
154 fHistAsMCMassOmegaPlus(0),
f870ac91 155
ff0753e1 156 // - Generated Pt Vs generated y, for the cascade candidates associated with MC + Info Comb. PID
157 f2dHistAsMCandCombPIDGenPtVsGenYXiMinus(0),
158 f2dHistAsMCandCombPIDGenPtVsGenYXiPlus(0),
159 f2dHistAsMCandCombPIDGenPtVsGenYOmegaMinus(0),
160 f2dHistAsMCandCombPIDGenPtVsGenYOmegaPlus(0),
161
162 // - Generated Pt Vs generated y, for the cascade candidates associated with MC
163 f2dHistAsMCGenPtVsGenYXiMinus(0),
164 f2dHistAsMCGenPtVsGenYXiPlus(0),
165 f2dHistAsMCGenPtVsGenYOmegaMinus(0),
166 f2dHistAsMCGenPtVsGenYOmegaPlus(0),
b67ec6f7 167
168 // - Generated Eta of the the cascade candidates associated with MC
169 fHistAsMCGenEtaXiMinus(0),
170 fHistAsMCGenEtaXiPlus(0),
171 fHistAsMCGenEtaOmegaMinus(0),
172 fHistAsMCGenEtaOmegaPlus(0),
173
174 // - Resolution in Pt as function of generated Pt
175 f2dHistAsMCResPtXiMinus(0),
176 f2dHistAsMCResPtXiPlus(0),
177 f2dHistAsMCResPtOmegaMinus(0),
178 f2dHistAsMCResPtOmegaPlus(0),
179
180 // - Resolution in R(2D) as function of generated R
181 f2dHistAsMCResRXiMinus(0),
182 f2dHistAsMCResRXiPlus(0),
183 f2dHistAsMCResROmegaMinus(0),
184 f2dHistAsMCResROmegaPlus(0)
185
186
187
188{
189// Dummy constructor
190}
191
192
193
194
195//_____Non-default Constructor________________________________________________________________
196AliAnalysisTaskCheckPerformanceCascade::AliAnalysisTaskCheckPerformanceCascade(const char *name)
197 : AliAnalysisTaskSE(name),
198 fDebugCascade(0), fAnalysisType("ESD"), fCollidingSystems(0),
199
200 // - Cascade part initialisation
201fListHistCascade(0),
202 fHistMCTrackMultiplicity(0),
203
204 fHistEtaGenProton(0),
205 fHistEtaGenAntiProton(0),
206
ff0753e1 207// Xi-
208 fHistEtaGenCascXiMinus(0),
209 f2dHistGenPtVsGenYGenXiMinus(0),
b67ec6f7 210
211 fHistThetaGenCascXiMinus(0),
ff0753e1 212 f2dHistGenPtVsGenYFdblXiMinus(0),
b67ec6f7 213
214 fHistThetaLambdaXiMinus(0),
215 fHistThetaBachXiMinus(0),
216
217 fHistThetaMesDghterXiMinus(0),
218 fHistThetaBarDghterXiMinus(0),
219
220 fHistPtBachXiMinus(0),
221 fHistPtMesDghterXiMinus(0),
222 fHistPtBarDghterXiMinus(0),
223
224
225 // Xi+
ff0753e1 226 fHistEtaGenCascXiPlus(0),
227 f2dHistGenPtVsGenYGenXiPlus(0),
b67ec6f7 228
229 fHistThetaGenCascXiPlus(0),
ff0753e1 230 f2dHistGenPtVsGenYFdblXiPlus(0),
b67ec6f7 231
232 fHistThetaLambdaXiPlus(0),
233 fHistThetaBachXiPlus(0),
234
235 fHistThetaMesDghterXiPlus(0),
236 fHistThetaBarDghterXiPlus(0),
237
238 fHistPtBachXiPlus(0),
239 fHistPtMesDghterXiPlus(0),
240 fHistPtBarDghterXiPlus(0),
241
242 // Omega-
ff0753e1 243 fHistEtaGenCascOmegaMinus(0),
244 f2dHistGenPtVsGenYGenOmegaMinus(0),
b67ec6f7 245
246 fHistThetaGenCascOmegaMinus(0),
ff0753e1 247 f2dHistGenPtVsGenYFdblOmegaMinus(0),
b67ec6f7 248
249 fHistThetaLambdaOmegaMinus(0),
250 fHistThetaBachOmegaMinus(0),
251
252 fHistThetaMesDghterOmegaMinus(0),
253 fHistThetaBarDghterOmegaMinus(0),
254
255 fHistPtBachOmegaMinus(0),
256 fHistPtMesDghterOmegaMinus(0),
257 fHistPtBarDghterOmegaMinus(0),
258
259
260 // Omega+
ff0753e1 261 fHistEtaGenCascOmegaPlus(0),
262 f2dHistGenPtVsGenYGenOmegaPlus(0),
b67ec6f7 263
264 fHistThetaGenCascOmegaPlus(0),
ff0753e1 265 f2dHistGenPtVsGenYFdblOmegaPlus(0),
b67ec6f7 266
267 fHistThetaLambdaOmegaPlus(0),
268 fHistThetaBachOmegaPlus(0),
269
270 fHistThetaMesDghterOmegaPlus(0),
271 fHistThetaBarDghterOmegaPlus(0),
272
273 fHistPtBachOmegaPlus(0),
274 fHistPtMesDghterOmegaPlus(0),
275 fHistPtBarDghterOmegaPlus(0),
276
277// Part 2 - Association to MC
278
279 fHistMassXiMinus(0),
280 fHistMassXiPlus(0),
281 fHistMassOmegaMinus(0),
282 fHistMassOmegaPlus(0),
ff0753e1 283
f87cd3db 284 // - Effective mass histos with combined PID
285 fHistMassWithCombPIDXiMinus(0), fHistMassWithCombPIDXiPlus(0),
286 fHistMassWithCombPIDOmegaMinus(0), fHistMassWithCombPIDOmegaPlus(0),
ff0753e1 287
f870ac91 288 // - PID Probability versus MC Pt(bachelor track)
289 f2dHistPIDprobaKaonVsMCPtBach(0), f2dHistPIDprobaPionVsMCPtBach(0),
290
f87cd3db 291 // - Effective mass histos with perfect MC PID on the bachelor
292 fHistMassWithMcPIDXiMinus(0), fHistMassWithMcPIDXiPlus(0),
293 fHistMassWithMcPIDOmegaMinus(0), fHistMassWithMcPIDOmegaPlus(0),
ff0753e1 294
f87cd3db 295
b67ec6f7 296 // - Effective mass histos for the cascade candidates associated with MC
297 fHistAsMCMassXiMinus(0),
298 fHistAsMCMassXiPlus(0),
299 fHistAsMCMassOmegaMinus(0),
300 fHistAsMCMassOmegaPlus(0),
b67ec6f7 301
ff0753e1 302 // - Generated Pt Vs generated y, for the cascade candidates associated with MC + Info Comb. PID
303 f2dHistAsMCandCombPIDGenPtVsGenYXiMinus(0),
304 f2dHistAsMCandCombPIDGenPtVsGenYXiPlus(0),
305 f2dHistAsMCandCombPIDGenPtVsGenYOmegaMinus(0),
306 f2dHistAsMCandCombPIDGenPtVsGenYOmegaPlus(0),
307
308 // - Generated Pt Vs generated y, for the cascade candidates associated with MC
309 f2dHistAsMCGenPtVsGenYXiMinus(0),
310 f2dHistAsMCGenPtVsGenYXiPlus(0),
311 f2dHistAsMCGenPtVsGenYOmegaMinus(0),
312 f2dHistAsMCGenPtVsGenYOmegaPlus(0),
b67ec6f7 313
314 // - Generated Eta of the the cascade candidates associated with MC
315 fHistAsMCGenEtaXiMinus(0),
316 fHistAsMCGenEtaXiPlus(0),
317 fHistAsMCGenEtaOmegaMinus(0),
318 fHistAsMCGenEtaOmegaPlus(0),
319
320 // - Resolution in Pt as function of generated Pt
321 f2dHistAsMCResPtXiMinus(0),
322 f2dHistAsMCResPtXiPlus(0),
323 f2dHistAsMCResPtOmegaMinus(0),
324 f2dHistAsMCResPtOmegaPlus(0),
325
326 // - Resolution in R(2D) as function of generated R
327 f2dHistAsMCResRXiMinus(0),
328 f2dHistAsMCResRXiPlus(0),
329 f2dHistAsMCResROmegaMinus(0),
330 f2dHistAsMCResROmegaPlus(0)
331
ff0753e1 332
b67ec6f7 333{
334 // Constructor
335
336 // Define input and output slots here
337 // Input slot #0 works with a TChain
338 //DefineInput(0, TChain::Class());
339 // Output slot #0 writes into a TList container (cascade)
340 DefineOutput(1, TList::Class());
341
342}
343
344
345
346
347
348//________________________________________________________________________
349void AliAnalysisTaskCheckPerformanceCascade::UserCreateOutputObjects()
350{
351 // Create histograms
352 // Called once
353
354
355 // Option for AliLog
356 AliLog::SetGlobalLogLevel(AliLog::kError);
357 // to suppress the extensive info prompted by a run with MC
358
359
360
361 // Definition of the datamembers
362 fListHistCascade = new TList();
363
364
365 // - General
366
367 if (!fHistMCTrackMultiplicity) {
368 fHistMCTrackMultiplicity = new TH1F("fHistMCTrackMultiplicity", "MC Track Multiplicity;Number of MC tracks;Events", 100, 0, 500);
369 // fHistMCTrackMultiplicity = new TH1F("fHistMCTrackMultiplicity", "Multiplicity distribution;Number of tracks;Events", 200, 0, 40000); //HERE
370 fListHistCascade->Add(fHistMCTrackMultiplicity);
371 }
372
373 if (!fHistEtaGenProton) {
374 fHistEtaGenProton = new TH1F("fHistEtaGenProton", "#eta of any gen. p^{+};#eta;Number of prim. protons", 200, -10, 10);
375 fListHistCascade->Add(fHistEtaGenProton);
376 }
377
378 if (!fHistEtaGenAntiProton) {
379 fHistEtaGenAntiProton = new TH1F("fHistEtaGenAntiProton", "#eta of any gen. #bar{p}^{-};#eta;Number of prim. #bar{p}", 200, -10, 10);
380 fListHistCascade->Add(fHistEtaGenAntiProton);
381 }
382
383
384
385
386
387
388
389 //--------
390 // I - Xi-
391 // - Pseudo-Rapidity distribution
392 if (!fHistEtaGenCascXiMinus) {
393 fHistEtaGenCascXiMinus = new TH1F("fHistEtaGenCascXiMinus", "#eta of any gen. #Xi^{-};#eta;Number of Casc", 200, -10, 10);
394 fListHistCascade->Add(fHistEtaGenCascXiMinus);
395 }
396
ff0753e1 397 if (!f2dHistGenPtVsGenYGenXiMinus) {
398 f2dHistGenPtVsGenYGenXiMinus = new TH2F("f2dHistGenPtVsGenYGenXiMinus", "MC P_{t} Vs MC Y of Gen #Xi^{-} ;Pt_{MC} (GeV/c); Y_{MC}", 200, 0., 10., 240, -1.2, 1.2);
399 fListHistCascade->Add(f2dHistGenPtVsGenYGenXiMinus);
b67ec6f7 400 }
401
402
403 // - Info at the generation level of multi-strange particle
404
405 if (!fHistThetaGenCascXiMinus) {
406 fHistThetaGenCascXiMinus = new TH1F("fHistThetaGenCascXiMinus", "#theta of gen. #Xi^{-};#theta;Number of Casc.", 200, -10, 190);
407 fListHistCascade->Add(fHistThetaGenCascXiMinus);
408 }
409
ff0753e1 410 if (!f2dHistGenPtVsGenYFdblXiMinus) {
411 f2dHistGenPtVsGenYFdblXiMinus = new TH2F("f2dHistGenPtVsGenYFdblXiMinus", "MC P_{t} Vs MC Y of findable Gen #Xi^{-}; Pt_{MC} (GeV/c); Y_{MC}", 200, 0., 10., 240, -1.2, 1.2);
412 fListHistCascade->Add(f2dHistGenPtVsGenYFdblXiMinus);
b67ec6f7 413 }
414
415 // - Theta distribution the daughters (control plots)
416
417 if (!fHistThetaLambdaXiMinus) {
418 fHistThetaLambdaXiMinus = new TH1F("fHistThetaLambdaXiMinus", "#theta of gen. #Lambda (Xi dghter);#theta_{#Lambda};Number of #Lambda^0", 200, -10, 190);
419 fListHistCascade->Add(fHistThetaLambdaXiMinus);
420 }
421
422 if (!fHistThetaBachXiMinus) {
423 fHistThetaBachXiMinus = new TH1F("fHistThetaBachXiMinus", "#theta of gen. Bach.;#theta_{Bach};Number of Bach.", 200, -10, 190);
424 fListHistCascade->Add(fHistThetaBachXiMinus);
425 }
426
427 if (!fHistThetaMesDghterXiMinus) {
428 fHistThetaMesDghterXiMinus = new TH1F("fHistThetaMesDghterXiMinus", "#theta of gen. Meson #Lambda dghter;#theta_{MesDght};Number of Mes.", 200, -10, 190);
429 fListHistCascade->Add(fHistThetaMesDghterXiMinus);
430 }
431
432 if (!fHistThetaBarDghterXiMinus) {
433 fHistThetaBarDghterXiMinus = new TH1F("fHistThetaBarDghterXiMinus", "#theta of gen. Baryon #Lambda dghter;#theta_{BarDght};Number of Bar.", 200, -10, 190);
434 fListHistCascade->Add(fHistThetaBarDghterXiMinus);
435 }
436
437 // - Pt distribution (control plots)
438
439 if (!fHistPtBachXiMinus) {
440 fHistPtBachXiMinus = new TH1F("fHistPtBachXiMinus", "p_{t} of gen. Bach.;pt_{Bach};Number of Bach.", 200, 0, 10);
441 fListHistCascade->Add(fHistPtBachXiMinus);
442 }
443
444 if (!fHistPtMesDghterXiMinus) {
445 fHistPtMesDghterXiMinus = new TH1F("fHistPtMesDghterXiMinus", "p_{t} of gen. Meson #Lambda dghter;pt_{MesDght};Number of Mes.", 200, 0, 10);
446 fListHistCascade->Add(fHistPtMesDghterXiMinus);
447 }
448
449 if (!fHistPtBarDghterXiMinus) {
450 fHistPtBarDghterXiMinus = new TH1F("fHistPtBarDghterXiMinus", "p_{t} of gen. Baryon #Lambda dghter;pt_{BarDght};Number of Bar.", 200, 0, 10);
451 fListHistCascade->Add(fHistPtBarDghterXiMinus);
452 }
453
454
455
456 //--------
457 // II - Xi+
458 // - Pseudo-Rapidity distribution
459 if (!fHistEtaGenCascXiPlus) {
460 fHistEtaGenCascXiPlus = new TH1F("fHistEtaGenCascXiPlus", "#eta of any gen. #Xi^{+};#eta;Number of Casc", 200, -10, 10);
461 fListHistCascade->Add(fHistEtaGenCascXiPlus);
462 }
463
ff0753e1 464 if (!f2dHistGenPtVsGenYGenXiPlus) {
465 f2dHistGenPtVsGenYGenXiPlus = new TH2F("f2dHistGenPtVsGenYGenXiPlus", "MC P_{t} Vs MC Y of Gen #Xi^{+} ;Pt_{MC} (GeV/c); Y_{MC}", 200, 0., 10., 240, -1.2, 1.2);
466 fListHistCascade->Add(f2dHistGenPtVsGenYGenXiPlus);
b67ec6f7 467 }
468
469
470 // - Info at the generation level of multi-strange particle
471
472 if (!fHistThetaGenCascXiPlus) {
473 fHistThetaGenCascXiPlus = new TH1F("fHistThetaGenCascXiPlus", "#theta of gen. #Xi^{+};#theta;Number of Casc.", 200, -10, 190);
474 fListHistCascade->Add(fHistThetaGenCascXiPlus);
475 }
476
ff0753e1 477 if (!f2dHistGenPtVsGenYFdblXiPlus) {
478 f2dHistGenPtVsGenYFdblXiPlus = new TH2F("f2dHistGenPtVsGenYFdblXiPlus", "MC P_{t} Vs MC Y of findable Gen #Xi^{+} ;Pt_{MC} (GeV/c); Y_{MC}", 200, 0., 10., 240, -1.2, 1.2);
479 fListHistCascade->Add(f2dHistGenPtVsGenYFdblXiPlus);
b67ec6f7 480 }
481
482 // - Theta distribution the daughters (control plots)
483
484 if (!fHistThetaLambdaXiPlus) {
485 fHistThetaLambdaXiPlus = new TH1F("fHistThetaLambdaXiPlus", "#theta of gen. #Lambda (Xi dghter);#theta_{#Lambda};Number of #Lambda", 200, -10, 190);
486 fListHistCascade->Add(fHistThetaLambdaXiPlus);
487 }
488
489 if (!fHistThetaBachXiPlus) {
490 fHistThetaBachXiPlus = new TH1F("fHistThetaBachXiPlus", "#theta of gen. Bach.;#theta_{Bach};Number of Bach.", 200, -10, 190);
491 fListHistCascade->Add(fHistThetaBachXiPlus);
492 }
493
494 if (!fHistThetaMesDghterXiPlus) {
495 fHistThetaMesDghterXiPlus = new TH1F("fHistThetaMesDghterXiPlus", "#theta of gen. Meson #Lambda dghter;#theta_{MesDght};Number of Mes.", 200, -10, 190);
496 fListHistCascade->Add(fHistThetaMesDghterXiPlus);
497 }
498
499 if (!fHistThetaBarDghterXiPlus) {
500 fHistThetaBarDghterXiPlus = new TH1F("fHistThetaBarDghterXiPlus", "#theta of gen. Baryon #Lambda dghter;#theta_{BarDght};Number of Bar.", 200, -10, 190);
501 fListHistCascade->Add(fHistThetaBarDghterXiPlus);
502 }
503
504 // - Pt distribution (control plots)
505
506 if (!fHistPtBachXiPlus) {
507 fHistPtBachXiPlus = new TH1F("fHistPtBachXiPlus", "p_{t} of gen. Bach.;pt_{Bach};Number of Bach.", 200, 0, 10);
508 fListHistCascade->Add(fHistPtBachXiPlus);
509 }
510
511 if (!fHistPtMesDghterXiPlus) {
512 fHistPtMesDghterXiPlus = new TH1F("fHistPtMesDghterXiPlus", "p_{t} of gen. Meson #Lambda dghter);pt_{MesDght};Number of Mes.", 200, 0, 10);
513 fListHistCascade->Add(fHistPtMesDghterXiPlus);
514 }
515
516 if (!fHistPtBarDghterXiPlus) {
517 fHistPtBarDghterXiPlus = new TH1F("fHistPtBarDghterXiPlus", "p_{t} of gen. Baryon #Lambda dghter);pt_{BarDght};Number of Bar.", 200, 0, 10);
518 fListHistCascade->Add(fHistPtBarDghterXiPlus);
519 }
520
521
522 //---------
523 // III - Omega-
524 // - Pseudo-Rapidity distribution
525 if (!fHistEtaGenCascOmegaMinus) {
526 fHistEtaGenCascOmegaMinus = new TH1F("fHistEtaGenCascOmegaMinus", "#eta of any gen. #Omega^{-};#eta;Number of Casc", 200, -10, 10);
527 fListHistCascade->Add(fHistEtaGenCascOmegaMinus);
528 }
529
ff0753e1 530 if (!f2dHistGenPtVsGenYGenOmegaMinus) {
531 f2dHistGenPtVsGenYGenOmegaMinus = new TH2F("f2dHistGenPtVsGenYGenOmegaMinus", "MC P_{t} Vs MC Y of Gen #Omega^{-} ;Pt_{MC} (GeV/c); Y_{MC}", 200, 0., 10., 240, -1.2, 1.2);
532 fListHistCascade->Add(f2dHistGenPtVsGenYGenOmegaMinus);
b67ec6f7 533 }
534
535
b67ec6f7 536 // - Info at the generation level of multi-strange particle
537
538 if (!fHistThetaGenCascOmegaMinus) {
539 fHistThetaGenCascOmegaMinus = new TH1F("fHistThetaGenCascOmegaMinus", "#theta of gen. #Omega^{-};#theta;Number of Casc.", 200, -10, 190);
540 fListHistCascade->Add(fHistThetaGenCascOmegaMinus);
541 }
542
ff0753e1 543 if (!f2dHistGenPtVsGenYFdblOmegaMinus) {
544 f2dHistGenPtVsGenYFdblOmegaMinus = new TH2F("f2dHistGenPtVsGenYFdblOmegaMinus", "MC P_{t} Vs MC Y of findable Gen #Omega^{-}; Pt_{MC} (GeV/c); Y_{MC}", 200, 0., 10., 240, -1.2, 1.2);
545 fListHistCascade->Add(f2dHistGenPtVsGenYFdblOmegaMinus);
b67ec6f7 546 }
547
548 // - Theta distribution the daughters (control plots)
549
550 if (!fHistThetaLambdaOmegaMinus) {
551 fHistThetaLambdaOmegaMinus = new TH1F("fHistThetaLambdaOmegaMinus", "#theta of gen. #Lambda (Omega dghter);#theta_{#Lambda};Number of #Lambda", 200, -10, 190);
552 fListHistCascade->Add(fHistThetaLambdaOmegaMinus);
553 }
554
555 if (!fHistThetaBachOmegaMinus) {
556 fHistThetaBachOmegaMinus = new TH1F("fHistThetaBachOmegaMinus", "#theta of gen. Bach.;#theta_{Bach};Number of Bach.", 200, -10, 190);
557 fListHistCascade->Add(fHistThetaBachOmegaMinus);
558 }
559
560 if (!fHistThetaMesDghterOmegaMinus) {
561 fHistThetaMesDghterOmegaMinus = new TH1F("fHistThetaMesDghterOmegaMinus", "#theta of gen. Meson #Lambda dghter;#theta_{MesDght};Number of Mes.", 200, -10, 190);
562 fListHistCascade->Add(fHistThetaMesDghterOmegaMinus);
563 }
564
565 if (!fHistThetaBarDghterOmegaMinus) {
566 fHistThetaBarDghterOmegaMinus = new TH1F("fHistThetaBarDghterOmegaMinus", "#theta of gen. Baryon #Lambda dghter;#theta_{BarDght};Number of Bar.", 200, -10, 190);
567 fListHistCascade->Add(fHistThetaBarDghterOmegaMinus);
568 }
569
570 // - Pt distribution (control plots)
571
572 if (!fHistPtBachOmegaMinus) {
573 fHistPtBachOmegaMinus = new TH1F("fHistPtBachOmegaMinus", "p_{t} of gen. Bach.;pt_{Bach};Number of Bach.", 200, 0, 10);
574 fListHistCascade->Add(fHistPtBachOmegaMinus);
575 }
576
577 if (!fHistPtMesDghterOmegaMinus) {
578 fHistPtMesDghterOmegaMinus = new TH1F("fHistPtMesDghterOmegaMinus", "p_{t} of gen. Meson #Lambda dghter);pt_{MesDght};Number of Mes.", 200, 0, 10);
579 fListHistCascade->Add(fHistPtMesDghterOmegaMinus);
580 }
581
582 if (!fHistPtBarDghterOmegaMinus) {
583 fHistPtBarDghterOmegaMinus = new TH1F("fHistPtBarDghterOmegaMinus", "p_{t} of gen. Baryon #Lambda dghter);pt_{BarDght};Number of Bar.", 200, 0, 10);
584 fListHistCascade->Add(fHistPtBarDghterOmegaMinus);
585 }
586
587
588 //---------
589 // IV - Omega+
590 // - Pseudo-Rapidity distribution
591 if (!fHistEtaGenCascOmegaPlus) {
592 fHistEtaGenCascOmegaPlus = new TH1F("fHistEtaGenCascOmegaPlus", "#eta of any gen. #Omega^{+};#eta;Number of Casc", 200, -10, 10);
593 fListHistCascade->Add(fHistEtaGenCascOmegaPlus);
594 }
595
ff0753e1 596 if (!f2dHistGenPtVsGenYGenOmegaPlus) {
597 f2dHistGenPtVsGenYGenOmegaPlus = new TH2F("f2dHistGenPtVsGenYGenOmegaPlus", "MC P_{t} Vs MC Y of Gen #Omega^{+} ;Pt_{MC} (GeV/c); Y_{MC}", 200, 0., 10., 240, -1.2, 1.2);
598 fListHistCascade->Add(f2dHistGenPtVsGenYGenOmegaPlus);
b67ec6f7 599 }
600
601
602
603 // - Info at the generation level of multi-strange particle
604
605 if (!fHistThetaGenCascOmegaPlus) {
606 fHistThetaGenCascOmegaPlus = new TH1F("fHistThetaGenCascOmegaPlus", "#theta of gen. #Omega^{+};#theta;Number of Casc.", 200, -10, 190);
607 fListHistCascade->Add(fHistThetaGenCascOmegaPlus);
608 }
609
ff0753e1 610 if (!f2dHistGenPtVsGenYFdblOmegaPlus) {
611 f2dHistGenPtVsGenYFdblOmegaPlus = new TH2F("f2dHistGenPtVsGenYFdblOmegaPlus", "MC P_{t} Vs MC Y of findable Gen #Omega^{+}; Pt_{MC} (GeV/c); Y_{MC}", 200, 0., 10., 240, -1.2, 1.2);
612 fListHistCascade->Add(f2dHistGenPtVsGenYFdblOmegaPlus);
b67ec6f7 613 }
ff0753e1 614
b67ec6f7 615
616 // - Theta distribution the daughters (control plots)
617
618 if (!fHistThetaLambdaOmegaPlus) {
619 fHistThetaLambdaOmegaPlus = new TH1F("fHistThetaLambdaOmegaPlus", "#theta of gen. #Lambda (Omega dghter);#theta_{#Lambda};Number of #Lambda", 200, -10, 190);
620 fListHistCascade->Add(fHistThetaLambdaOmegaPlus);
621 }
622
623 if (!fHistThetaBachOmegaPlus) {
624 fHistThetaBachOmegaPlus = new TH1F("fHistThetaBachOmegaPlus", "#theta of gen. Bach.;#theta_{Bach};Number of Bach.", 200, -10, 190);
625 fListHistCascade->Add(fHistThetaBachOmegaPlus);
626 }
627
628 if (!fHistThetaMesDghterOmegaPlus) {
629 fHistThetaMesDghterOmegaPlus = new TH1F("fHistThetaMesDghterOmegaPlus", "#theta of gen. Meson #Lambda dghter;#theta_{MesDght};Number of Mes.", 200, -10, 190);
630 fListHistCascade->Add(fHistThetaMesDghterOmegaPlus);
631 }
632
633 if (!fHistThetaBarDghterOmegaPlus) {
634 fHistThetaBarDghterOmegaPlus = new TH1F("fHistThetaBarDghterOmegaPlus", "#theta of gen. Baryon #Lambda dghter;#theta_{BarDght};Number of Bar.", 200, -10, 190);
635 fListHistCascade->Add(fHistThetaBarDghterOmegaPlus);
636 }
637
638 // - Pt distribution (control plots)
639
640 if (!fHistPtBachOmegaPlus) {
641 fHistPtBachOmegaPlus = new TH1F("fHistPtBachOmegaPlus", "p_{t} of gen. Bach.;pt_{Bach};Number of Bach.", 200, 0, 10);
642 fListHistCascade->Add(fHistPtBachOmegaPlus);
643 }
644
645 if (!fHistPtMesDghterOmegaPlus) {
646 fHistPtMesDghterOmegaPlus = new TH1F("fHistPtMesDghterOmegaPlus", "p_{t} of gen. Meson #Lambda dghter);pt_{MesDght};Number of Mes.", 200, 0, 10);
647 fListHistCascade->Add(fHistPtMesDghterOmegaPlus);
648 }
649
650 if (!fHistPtBarDghterOmegaPlus) {
651 fHistPtBarDghterOmegaPlus = new TH1F("fHistPtBarDghterOmegaPlus", "p_{t} of gen. Baryon #Lambda dghter);pt_{BarDght};Number of Bar.", 200, 0, 10);
652 fListHistCascade->Add(fHistPtBarDghterOmegaPlus);
653 }
654
655
f870ac91 656//--------------------------------------------------------------------------------
b67ec6f7 657// Part 2 - Any reconstructed cascades + reconstructed cascades associated with MC
658
659 // - Effective mass histos for cascades candidates.
660
661 if (! fHistMassXiMinus) {
662 fHistMassXiMinus = new TH1F("fHistMassXiMinus","#Xi^{-} candidates;M( #Lambda , #pi^{-} ) (GeV/c^{2});Counts", 200,1.2,2.0);
663 fListHistCascade->Add(fHistMassXiMinus);
664 }
665
666 if (! fHistMassXiPlus) {
667 fHistMassXiPlus = new TH1F("fHistMassXiPlus","#Xi^{+} candidates;M( #bar{#Lambda}^{0} , #pi^{+} ) (GeV/c^{2});Counts",200,1.2,2.0);
668 fListHistCascade->Add(fHistMassXiPlus);
669 }
670
671 if (! fHistMassOmegaMinus) {
672 fHistMassOmegaMinus = new TH1F("fHistMassOmegaMinus","#Omega^{-} candidates;M( #Lambda , K^{-} ) (GeV/c^{2});Counts", 250,1.5,2.5);
673 fListHistCascade->Add(fHistMassOmegaMinus);
674 }
675
676 if (! fHistMassOmegaPlus) {
677 fHistMassOmegaPlus = new TH1F("fHistMassOmegaPlus","#Omega^{+} candidates;M( #bar{#Lambda}^{0} , K^{+} ) (GeV/c^{2});Counts", 250,1.5,2.5);
678 fListHistCascade->Add(fHistMassOmegaPlus);
679 }
680
f87cd3db 681
682
683 // - Effective mass histos with combined PID
684
685 if (! fHistMassWithCombPIDXiMinus) {
686 fHistMassWithCombPIDXiMinus = new TH1F("fHistMassWithCombPIDXiMinus","#Xi^{-} candidates, with Bach. comb. PID;M( #Lambda , #pi^{-} ) (GeV/c^{2});Counts", 200,1.2,2.0);
687 fListHistCascade->Add(fHistMassWithCombPIDXiMinus);
688 }
689
690 if (! fHistMassWithCombPIDXiPlus) {
691 fHistMassWithCombPIDXiPlus = new TH1F("fHistMassWithCombPIDXiPlus","#Xi^{+} candidates, with Bach. comb. PID;M( #bar{#Lambda}^{0} , #pi^{+} ) (GeV/c^{2});Counts",200,1.2,2.0);
692 fListHistCascade->Add(fHistMassWithCombPIDXiPlus);
693 }
694
695 if (! fHistMassWithCombPIDOmegaMinus) {
696 fHistMassWithCombPIDOmegaMinus = new TH1F("fHistMassWithCombPIDOmegaMinus","#Omega^{-} candidates, with Bach. comb. PID;M( #Lambda , K^{-} ) (GeV/c^{2});Counts", 250,1.5,2.5);
697 fListHistCascade->Add(fHistMassWithCombPIDOmegaMinus);
698 }
699
700 if (! fHistMassWithCombPIDOmegaPlus) {
701 fHistMassWithCombPIDOmegaPlus = new TH1F("fHistMassWithCombPIDOmegaPlus","#Omega^{+} candidates, with Bach. comb. PID;M( #bar{#Lambda}^{0} , K^{+} ) (GeV/c^{2});Counts", 250,1.5,2.5);
702 fListHistCascade->Add(fHistMassWithCombPIDOmegaPlus);
703 }
704
f870ac91 705 // - PID Probability versus MC Pt(bachelor track)
706 if(! f2dHistPIDprobaKaonVsMCPtBach ){
707 f2dHistPIDprobaKaonVsMCPtBach = new TH2F( "f2dHistPIDprobaKaonVsMCPtBach" , "Comb. PID proba to be K^{#pm} Vs MC Bach. Pt ; Pt_{MC}(Bach.) (GeV/c); Comb. PID Proba (Bach. = K^{#pm})", 100, 0.0, 5.0, 110, 0.0, 1.10 );
708 fListHistCascade->Add(f2dHistPIDprobaKaonVsMCPtBach);
709 }
710
711 if(! f2dHistPIDprobaPionVsMCPtBach ){
712 f2dHistPIDprobaPionVsMCPtBach = new TH2F( "f2dHistPIDprobaPionVsMCPtBach" , "Comb. PID proba to be #pi^{#pm} Vs MC Bach. Pt ; Pt_{MC}(Bach.) (GeV/c); Comb. PID Proba (Bach. = #pi^{#pm})", 100, 0.0, 5.0, 110, 0.0, 1.10 );
713 fListHistCascade->Add(f2dHistPIDprobaPionVsMCPtBach);
714 }
715
716
f87cd3db 717 // - Effective mass histos with perfect MC PID on the bachelor
718
719 if (! fHistMassWithMcPIDXiMinus) {
720 fHistMassWithMcPIDXiMinus = new TH1F("fHistMassWithMcPIDXiMinus","#Xi^{-} candidates, with Bach. MC PID;M( #Lambda , #pi^{-} ) (GeV/c^{2});Counts", 200,1.2,2.0);
721 fListHistCascade->Add(fHistMassWithMcPIDXiMinus);
722 }
723
724 if (! fHistMassWithMcPIDXiPlus) {
725 fHistMassWithMcPIDXiPlus = new TH1F("fHistMassWithMcPIDXiPlus","#Xi^{+} candidates, with Bach. MC PID;M( #bar{#Lambda}^{0} , #pi^{+} ) (GeV/c^{2});Counts",200,1.2,2.0);
726 fListHistCascade->Add(fHistMassWithMcPIDXiPlus);
727 }
728
729 if (! fHistMassWithMcPIDOmegaMinus) {
730 fHistMassWithMcPIDOmegaMinus = new TH1F("fHistMassWithMcPIDOmegaMinus","#Omega^{-} candidates, with Bach. MC PID;M( #Lambda , K^{-} ) (GeV/c^{2});Counts", 250,1.5,2.5);
731 fListHistCascade->Add(fHistMassWithMcPIDOmegaMinus);
732 }
733
734 if (! fHistMassWithMcPIDOmegaPlus) {
735 fHistMassWithMcPIDOmegaPlus = new TH1F("fHistMassWithMcPIDOmegaPlus","#Omega^{+} candidates, with Bach. MC PID;M( #bar{#Lambda}^{0} , K^{+} ) (GeV/c^{2});Counts", 250,1.5,2.5);
736 fListHistCascade->Add(fHistMassWithMcPIDOmegaPlus);
737 }
738
739
b67ec6f7 740 // - Effective mass histos for cascades candidates ASSOCIATED with MC.
741
742 if (! fHistAsMCMassXiMinus) {
743 fHistAsMCMassXiMinus = new TH1F("fHistAsMCMassXiMinus","#Xi^{-} candidates associated to MC;M( #Lambda , #pi^{-} ) (GeV/c^{2});Counts", 200,1.2,2.0);
744 fListHistCascade->Add(fHistAsMCMassXiMinus);
745 }
746
747 if (! fHistAsMCMassXiPlus) {
748 fHistAsMCMassXiPlus = new TH1F("fHistAsMCMassXiPlus","#Xi^{+} candidates associated to MC;M( #bar{#Lambda}^{0} , #pi^{+} ) (GeV/c^{2});Counts",200,1.2,2.0);
749 fListHistCascade->Add(fHistAsMCMassXiPlus);
750 }
751
752 if (! fHistAsMCMassOmegaMinus) {
753 fHistAsMCMassOmegaMinus = new TH1F("fHistAsMCMassOmegaMinus","#Omega^{-} candidates associated to MC;M( #Lambda , K^{-} ) (GeV/c^{2});Counts", 250,1.5,2.5);
754 fListHistCascade->Add(fHistAsMCMassOmegaMinus);
755 }
756
757 if (! fHistAsMCMassOmegaPlus) {
758 fHistAsMCMassOmegaPlus = new TH1F("fHistAsMCMassOmegaPlus","#Omega^{+} candidates associated to MC;M( #bar{#Lambda}^{0} , K^{+} ) (GeV/c^{2});Counts", 250,1.5,2.5);
759 fListHistCascade->Add(fHistAsMCMassOmegaPlus);
760 }
761
f870ac91 762
ff0753e1 763 // - Generated Pt Vs generated Y of the cascade candidates associated with MC
764 // + having the proper maximum proba of combined PID for the bachelor
f870ac91 765
ff0753e1 766 if (!f2dHistAsMCandCombPIDGenPtVsGenYXiMinus) {
767 f2dHistAsMCandCombPIDGenPtVsGenYXiMinus = new TH2F("f2dHistAsMCandCombPIDGenPtVsGenYXiMinus", "MC P_{t} Vs MC Y of #Xi^{-} (associated+Bach.PID); Pt_{MC} (GeV/c); Y_{MC}", 200, 0., 10., 240, -1.2, 1.2);
768 fListHistCascade->Add(f2dHistAsMCandCombPIDGenPtVsGenYXiMinus);
f870ac91 769 }
770
ff0753e1 771 if (!f2dHistAsMCandCombPIDGenPtVsGenYXiPlus) {
772 f2dHistAsMCandCombPIDGenPtVsGenYXiPlus = new TH2F("f2dHistAsMCandCombPIDGenPtVsGenYXiPlus", "MC P_{t} Vs MC Y of #Xi^{+} (associated+Bach.PID); Pt_{MC} (GeV/c); Y_{MC}", 200, 0., 10., 240, -1.2, 1.2);
773 fListHistCascade->Add(f2dHistAsMCandCombPIDGenPtVsGenYXiPlus);
f870ac91 774 }
b67ec6f7 775
ff0753e1 776 if (!f2dHistAsMCandCombPIDGenPtVsGenYOmegaMinus) {
777 f2dHistAsMCandCombPIDGenPtVsGenYOmegaMinus = new TH2F("f2dHistAsMCandCombPIDGenPtVsGenYOmegaMinus", "MC P_{t} Vs MC Y of #Omega^{-} (associated+Bach.PID); Pt_{MC} (GeV/c); Y_{MC}", 200, 0., 10., 240, -1.2, 1.2);
778 fListHistCascade->Add(f2dHistAsMCandCombPIDGenPtVsGenYOmegaMinus);
f870ac91 779 }
780
ff0753e1 781 if (!f2dHistAsMCandCombPIDGenPtVsGenYOmegaPlus) {
782 f2dHistAsMCandCombPIDGenPtVsGenYOmegaPlus = new TH2F("f2dHistAsMCandCombPIDGenPtVsGenYOmegaPlus", "MC P_{t} Vs MC Y of #Omega^{+} (associated+Bach.PID); Pt_{MC} (GeV/c); Y_{MC}", 200, 0., 10., 240, -1.2, 1.2);
783 fListHistCascade->Add(f2dHistAsMCandCombPIDGenPtVsGenYOmegaPlus);
f870ac91 784 }
785
786
ff0753e1 787 // - Generated Pt Vs Generated Y, for the cascade candidates associated with MC
b67ec6f7 788
ff0753e1 789 if (!f2dHistAsMCGenPtVsGenYXiMinus) {
790 f2dHistAsMCGenPtVsGenYXiMinus = new TH2F("f2dHistAsMCGenPtVsGenYXiMinus", "MC P_{t} Vs MC Y of gen. #Xi^{-} (associated);Pt_{MC} (GeV/c); Rapidity, Y_{MC}",200, 0., 10., 240, -1.2, 1.2);
791 fListHistCascade->Add(f2dHistAsMCGenPtVsGenYXiMinus );
b67ec6f7 792 }
793
ff0753e1 794 if (!f2dHistAsMCGenPtVsGenYXiPlus) {
795 f2dHistAsMCGenPtVsGenYXiPlus = new TH2F("f2dHistAsMCGenPtVsGenYXiPlus", "MC P_{t} Vs MC Y of gen. #Xi^{+} (associated);Pt_{MC} (GeV/c); Rapidity, Y_{MC}",200, 0., 10., 240, -1.2, 1.2);
796 fListHistCascade->Add(f2dHistAsMCGenPtVsGenYXiPlus );
b67ec6f7 797 }
798
ff0753e1 799 if (!f2dHistAsMCGenPtVsGenYOmegaMinus) {
800 f2dHistAsMCGenPtVsGenYOmegaMinus = new TH2F("f2dHistAsMCGenPtVsGenYOmegaMinus", "MC P_{t} Vs MC Y of gen. #Omega^{-} (associated);Pt_{MC} (GeV/c); Rapidity, Y_{MC}",200, 0., 10., 240, -1.2, 1.2);
801 fListHistCascade->Add(f2dHistAsMCGenPtVsGenYOmegaMinus );
b67ec6f7 802 }
803
ff0753e1 804 if (!f2dHistAsMCGenPtVsGenYOmegaPlus) {
805 f2dHistAsMCGenPtVsGenYOmegaPlus = new TH2F("f2dHistAsMCGenPtVsGenYOmegaPlus", "MC P_{t} Vs MC Y of gen. #Omega^{+} (associated);Pt_{MC} (GeV/c); Rapidity, Y_{MC}",200, 0., 10., 240, -1.2, 1.2);
806 fListHistCascade->Add(f2dHistAsMCGenPtVsGenYOmegaPlus );
b67ec6f7 807 }
808
809
810 // - Generated Eta of the the cascade candidates associated with MC
811 if (!fHistAsMCGenEtaXiMinus) {
812 fHistAsMCGenEtaXiMinus = new TH1F("fHistAsMCGenEtaXiMinus", "#eta of gen. #Xi^{-} (associated);#eta;Number of Casc", 100, -5, 5);
813 fListHistCascade->Add( fHistAsMCGenEtaXiMinus );
814 }
815
816 if (!fHistAsMCGenEtaXiPlus) {
817 fHistAsMCGenEtaXiPlus = new TH1F("fHistAsMCGenEtaXiPlus", "#eta of gen. #Xi^{+} (associated);#eta;Number of Casc", 100, -5, 5);
818 fListHistCascade->Add( fHistAsMCGenEtaXiPlus );
819 }
820
821 if (!fHistAsMCGenEtaOmegaMinus) {
822 fHistAsMCGenEtaOmegaMinus = new TH1F("fHistAsMCGenEtaOmegaMinus", "#eta of gen. #Omega^{-} (associated);#eta;Number of Casc", 100, -5, 5);
823 fListHistCascade->Add( fHistAsMCGenEtaOmegaMinus );
824 }
825
826 if (!fHistAsMCGenEtaOmegaPlus) {
827 fHistAsMCGenEtaOmegaPlus = new TH1F("fHistAsMCGenEtaOmegaPlus", "#eta of gen. #Omega^{+} (associated);#eta;Number of Casc", 100, -5, 5);
828 fListHistCascade->Add( fHistAsMCGenEtaOmegaPlus );
829 }
830
831
832
833 // - Resolution in Pt as function of generated Pt
834
835 if(! f2dHistAsMCResPtXiMinus) {
f870ac91 836 f2dHistAsMCResPtXiMinus = new TH2F( "f2dHistAsMCResPtXiMinus", "Resolution in Pt reconstruction for #Xi^{-}; Pt_{MC} (GeV/c); (Pt_{reco} - Pt_{MC}) / Pt_{MC}", 200, 0., 10., 200, -0.1, 0.1);
b67ec6f7 837 fListHistCascade->Add(f2dHistAsMCResPtXiMinus);
838 }
839
840 if(! f2dHistAsMCResPtXiPlus) {
f870ac91 841 f2dHistAsMCResPtXiPlus = new TH2F( "f2dHistAsMCResPtXiPlus", "Resolution in Pt reconstruction for #Xi^{+}; Pt_{MC} (GeV/c); (Pt_{reco} - Pt_{MC}) / Pt_{MC}", 200, 0., 10., 200, -0.1, 0.1);
b67ec6f7 842 fListHistCascade->Add(f2dHistAsMCResPtXiPlus);
843 }
844
845 if(! f2dHistAsMCResPtOmegaMinus) {
f870ac91 846 f2dHistAsMCResPtOmegaMinus = new TH2F( "f2dHistAsMCResPtOmegaMinus", "Resolution in Pt reconstruction for #Omega^{-}; Pt_{MC} (GeV/c); (Pt_{reco} - Pt_{MC}) / Pt_{MC}", 200, 0., 10., 200, -0.1, 0.1);
b67ec6f7 847 fListHistCascade->Add(f2dHistAsMCResPtOmegaMinus);
848 }
849
850 if(! f2dHistAsMCResPtOmegaPlus) {
f870ac91 851 f2dHistAsMCResPtOmegaPlus = new TH2F( "f2dHistAsMCResPtOmegaPlus", "Resolution in Pt reconstruction for #Omega^{+}; Pt_{MC} (GeV/c); (Pt_{reco} - Pt_{MC}) / Pt_{MC}", 200, 0., 10., 200, -0.1, 0.1);
b67ec6f7 852 fListHistCascade->Add(f2dHistAsMCResPtOmegaPlus);
853 }
854
855 // - Resolution in R(2D) as function of generated R
856
857 if(! f2dHistAsMCResRXiMinus) {
f870ac91 858 f2dHistAsMCResRXiMinus = new TH2F( "f2dHistAsMCResRXiMinus", "Resolution in transv. position for #Xi^{-}; R_{MC} (cm); (R_{reco} - R_{MC}) / R_{MC}", 450, 0., 45.0, 240, -0.3, 0.3);
b67ec6f7 859 fListHistCascade->Add(f2dHistAsMCResRXiMinus);
860 }
861
862 if(! f2dHistAsMCResRXiPlus) {
f870ac91 863 f2dHistAsMCResRXiPlus = new TH2F( "f2dHistAsMCResRXiPlus", "Resolution in transv. position for #Xi^{+}; R_{MC} (cm); (R_{reco} - R_{MC}) / R_{MC}", 450, 0., 45.0, 240, -0.3, 0.3);
b67ec6f7 864 fListHistCascade->Add(f2dHistAsMCResRXiPlus);
865 }
866
867 if(! f2dHistAsMCResROmegaMinus) {
f870ac91 868 f2dHistAsMCResROmegaMinus = new TH2F( "f2dHistAsMCResROmegaMinus", "Resolution in transv. position for #Omega^{-}; R_{MC} (cm); (R_{reco} - R_{MC}) / R_{MC}", 450, 0., 45.0, 240, -0.3, 0.3);
b67ec6f7 869 fListHistCascade->Add(f2dHistAsMCResROmegaMinus);
870 }
871
872 if(! f2dHistAsMCResROmegaPlus) {
f870ac91 873 f2dHistAsMCResROmegaPlus = new TH2F( "f2dHistAsMCResROmegaPlus", "Resolution in transv. position for #Omega^{+}; R_{MC} (cm); (R_{reco} - R_{MC}) / R_{MC}", 450, 0., 45.0, 240, -0.3, 0.3);
b67ec6f7 874 fListHistCascade->Add(f2dHistAsMCResROmegaPlus);
875 }
876
877
878}// end CreateOutputObjects
879
880
881
882
883
884
885//________________________________________________________________________
886void AliAnalysisTaskCheckPerformanceCascade::UserExec(Option_t *)
887{
888
889 // Main loop
890 // Called for each event
891
892 AliESDEvent *lESDevent = 0x0;
893 AliAODEvent *lAODevent = 0x0;
894 AliMCEvent *lMCevent = 0x0;
895 AliStack *lMCstack = 0x0;
896 Int_t ncascades = -1;
897
898
899 // Connect to the InputEvent
900 // After these lines, we should have an ESD/AOD event + the number of cascades in it.
901
902 if(fAnalysisType == "ESD"){
903 lESDevent = dynamic_cast<AliESDEvent*>( InputEvent() );
904 if (!lESDevent) {
905 Printf("ERROR: lESDevent not available \n");
906 cout << "Name of the file with pb :" << fInputHandler->GetTree()->GetCurrentFile()->GetName() << endl;
907 return;
908 }
909 ncascades = lESDevent->GetNumberOfCascades();
910 }
911
912 else if(fAnalysisType == "AOD"){
913 lAODevent = dynamic_cast<AliAODEvent*>( InputEvent() );
914 if (!lAODevent) {
915 Printf("ERROR: lAODevent not available \n");
916 cout << "Name of the file with pb :" << fInputHandler->GetTree()->GetCurrentFile()->GetName() << endl;
917 return;
918 }
919 ncascades = lAODevent->GetNumberOfCascades();
920 }
921
922
923 lMCevent = MCEvent();
924 if (!lMCevent) {
925 Printf("ERROR: Could not retrieve MC event \n");
926 cout << "Name of the file with pb :" << fInputHandler->GetTree()->GetCurrentFile()->GetName() << endl;
927 return;
928 }
929
930 lMCstack = lMCevent->Stack();
931 if (!lMCstack) {
932 Printf("ERROR: Could not retrieve MC stack \n");
933 cout << "Name of the file with pb :" << fInputHandler->GetTree()->GetCurrentFile()->GetName() << endl;
934 return;
935
936 }
937
938
939 // cout << "Name of the accessed file :" << fInputHandler->GetTree()->GetCurrentFile()->GetName() << endl;
940
941 // cout << "Tree characteristics ..." << endl;
942 // fInputHandler->GetTree()->Print("toponly");
943 // fInputHandler->GetTree()->GetBranch("PrimaryVertex")->Print();
944 // fInputHandler->GetTree()->GetBranch("SPDVertex")->Print();
945
946
947
948
949
950
951
952 // ---------------------------------------------------------------
953 // - Initialisation of the part dedicated to cascade vertices
954
955 Int_t iNumberOfPrimaries = -1;
956 iNumberOfPrimaries = lMCstack->GetNprimary();
957
958 if(iNumberOfPrimaries < 1) return;
959
960 fHistMCTrackMultiplicity->Fill( lMCstack->GetNtrack() );
961
962 // For proton
963 /*
964 for (Int_t iCurrentLabelStack = 0; iCurrentLabelStack < iNumberOfPrimaries; iCurrentLabelStack++)
965 {// This is the begining of the loop on primaries, for protons
966
967 TParticle* lCurrentParticle = lMCstack->Particle( iCurrentLabelStack );
968 if(!lCurrentParticle){
969 Printf("Proton loop %d - MC TParticle pointer to current stack particle = 0x0 ! Skip ...\n", iCurrentLabelStack );
970 continue;
971
972 }
973
974 if( lCurrentParticle->GetPdgCode() == 2212 )
975 fHistEtaGenProton->Fill( lCurrentParticle->Eta() );
976
977 if( lCurrentParticle->GetPdgCode() == -2212 )
978 fHistEtaGenAntiProton->Fill( lCurrentParticle->Eta() );
979 }// end loop over primary proton
980 */
981
982
983
984//__________________________________________________________________________
985// Part 1 - Loop over the different types of generated cascades (Xi-+, Omega-+)
986
987 // - Initialisation of useful local variables
988
989 Int_t lPdgCodeCasc = 0;
990 Int_t lPdgCodeBach = 0;
991 Int_t lPdgCodeLambda = 0;
992 Int_t lPdgCodeDghtMesV0 = 0;
993 Int_t lPdgCodeDghtBarV0 = 0;
994
b67ec6f7 995
ff0753e1 996 TH1F *lHistEtaGenCasc = 0;
997 TH2F *l2dHistGenPtVsGenYGen = 0;
998
b67ec6f7 999 TH1F *lHistThetaGenCasc = 0;
ff0753e1 1000 TH2F *l2dHistGenPtVsGenYFdbl = 0;
b67ec6f7 1001 TH1F *lHistThetaLambda = 0;
1002 TH1F *lHistThetaBach = 0;
1003 TH1F *lHistThetaBarDghter = 0;
1004 TH1F *lHistThetaMesDghter = 0;
1005 TH1F *lHistPtBach = 0;
1006 TH1F *lHistPtBarDghter = 0;
1007 TH1F *lHistPtMesDghter = 0;
1008
1009
db71a168 1010for(Int_t iCascType = 1; iCascType < 5; iCascType++)
b67ec6f7 1011{
1012
db71a168 1013switch (iCascType)
b67ec6f7 1014 {
1015 case 1: // Xi-
1016 lPdgCodeCasc = 3312; //Xi-
1017 lPdgCodeBach = -211; //Pi-
1018 lPdgCodeLambda = 3122; //Lambda0
1019 lPdgCodeDghtMesV0 = -211; //Pi-
1020 lPdgCodeDghtBarV0 = 2212; //Proton
1021
1022 // any Xi-
ff0753e1 1023 lHistEtaGenCasc = fHistEtaGenCascXiMinus;
1024 l2dHistGenPtVsGenYGen = f2dHistGenPtVsGenYGenXiMinus;
1025
b67ec6f7 1026 // cascades generated within acceptance (cut in pt + theta)
ff0753e1 1027 lHistThetaGenCasc = fHistThetaGenCascXiMinus;
1028 l2dHistGenPtVsGenYFdbl = f2dHistGenPtVsGenYFdblXiMinus;
1029 lHistThetaLambda = fHistThetaLambdaXiMinus;
1030 lHistThetaBach = fHistThetaBachXiMinus;
1031 lHistThetaBarDghter = fHistThetaBarDghterXiMinus;
1032 lHistThetaMesDghter = fHistThetaMesDghterXiMinus;
1033 lHistPtBach = fHistPtBachXiMinus;
1034 lHistPtBarDghter = fHistPtBarDghterXiMinus;
1035 lHistPtMesDghter = fHistPtMesDghterXiMinus;
b67ec6f7 1036 break;
1037
1038 case 2: // Xi+
1039 lPdgCodeCasc = -3312; //Xi+
1040 lPdgCodeBach = 211; //Pi+
1041 lPdgCodeLambda = -3122; //AntiLambda0
1042 lPdgCodeDghtMesV0 = 211; //Pi+
1043 lPdgCodeDghtBarV0 = -2212; //AntiProton
1044
1045 // any Xi+
ff0753e1 1046 lHistEtaGenCasc = fHistEtaGenCascXiPlus;
1047 l2dHistGenPtVsGenYGen = f2dHistGenPtVsGenYGenXiPlus;
1048
b67ec6f7 1049 // cascades generated within acceptance (cut in pt + theta)
ff0753e1 1050 lHistThetaGenCasc = fHistThetaGenCascXiPlus;
1051 l2dHistGenPtVsGenYFdbl = f2dHistGenPtVsGenYFdblXiPlus;
1052 lHistThetaLambda = fHistThetaLambdaXiPlus;
1053 lHistThetaBach = fHistThetaBachXiPlus;
1054 lHistThetaBarDghter = fHistThetaBarDghterXiPlus;
1055 lHistThetaMesDghter = fHistThetaMesDghterXiPlus;
1056 lHistPtBach = fHistPtBachXiPlus;
1057 lHistPtBarDghter = fHistPtBarDghterXiPlus;
1058 lHistPtMesDghter = fHistPtMesDghterXiPlus;
b67ec6f7 1059 break;
1060
1061 case 3: // Omega-
1062 lPdgCodeCasc = 3334; //Omega-
1063 lPdgCodeBach = -321; //K-
1064 lPdgCodeLambda = 3122; //Lambda0
1065 lPdgCodeDghtMesV0 = -211; //Pi-
1066 lPdgCodeDghtBarV0 = 2212; //Proton
1067
1068 // any Omega-
ff0753e1 1069 lHistEtaGenCasc = fHistEtaGenCascOmegaMinus;
1070 l2dHistGenPtVsGenYGen = f2dHistGenPtVsGenYGenOmegaMinus;
1071
b67ec6f7 1072 // cascades generated within acceptance (cut in pt + theta)
ff0753e1 1073 lHistThetaGenCasc = fHistThetaGenCascOmegaMinus;
1074 l2dHistGenPtVsGenYFdbl = f2dHistGenPtVsGenYFdblOmegaMinus;
1075 lHistThetaLambda = fHistThetaLambdaOmegaMinus;
1076 lHistThetaBach = fHistThetaBachOmegaMinus;
1077 lHistThetaBarDghter = fHistThetaBarDghterOmegaMinus;
1078 lHistThetaMesDghter = fHistThetaMesDghterOmegaMinus;
1079 lHistPtBach = fHistPtBachOmegaMinus;
1080 lHistPtBarDghter = fHistPtBarDghterOmegaMinus;
1081 lHistPtMesDghter = fHistPtMesDghterOmegaMinus;
b67ec6f7 1082 break;
1083
1084 case 4: // Omega+
1085 lPdgCodeCasc = -3334; //Omega+
1086 lPdgCodeBach = 321; //K+
1087 lPdgCodeLambda = -3122; //AntiLambda0
1088 lPdgCodeDghtMesV0 = 211; //Pi+
1089 lPdgCodeDghtBarV0 = -2212; //AntiProton
1090
1091 // any Omega+
ff0753e1 1092 lHistEtaGenCasc = fHistEtaGenCascOmegaPlus;
1093 l2dHistGenPtVsGenYGen = f2dHistGenPtVsGenYGenOmegaPlus;
b67ec6f7 1094
1095 // cascades generated within acceptance (cut in pt + theta)
ff0753e1 1096 lHistThetaGenCasc = fHistThetaGenCascOmegaPlus;
1097 l2dHistGenPtVsGenYFdbl = f2dHistGenPtVsGenYFdblOmegaPlus;
1098 lHistThetaLambda = fHistThetaLambdaOmegaPlus;
1099 lHistThetaBach = fHistThetaBachOmegaPlus;
1100 lHistThetaBarDghter = fHistThetaBarDghterOmegaPlus;
1101 lHistThetaMesDghter = fHistThetaMesDghterOmegaPlus;
1102 lHistPtBach = fHistPtBachOmegaPlus;
1103 lHistPtBarDghter = fHistPtBarDghterOmegaPlus;
1104 lHistPtMesDghter = fHistPtMesDghterOmegaPlus;
b67ec6f7 1105 break;
1106
1107 }// end switch cascade
db71a168 1108
1109
b67ec6f7 1110 for (Int_t iCurrentLabelStack = 0; iCurrentLabelStack < iNumberOfPrimaries; iCurrentLabelStack++)
1111 {// This is the begining of the loop on primaries
1112
1113 TParticle* lCurrentParticle = 0x0;
1114 lCurrentParticle = lMCstack->Particle( iCurrentLabelStack );
1115 if(!lCurrentParticle){
1116 Printf("Cascade loop %d - MC TParticle pointer to current stack particle = 0x0 ! Skip ...\n", iCurrentLabelStack );
1117 continue;
1118
1119 }
db71a168 1120
b67ec6f7 1121 if( lCurrentParticle->GetPdgCode() == lPdgCodeCasc ){ // Here !
ff0753e1 1122 //cout << "Xi- within loop " << iCurrentLabelStack << "/ " << iNumberOfPrimaries << endl;
b67ec6f7 1123
1124 // - Xi level ... _____________________________________________________________
1125 TParticle* xiMC = 0x0;
1126 xiMC = lCurrentParticle;
1127 if(!xiMC){
1128 Printf("MC TParticle pointer to Cascade = 0x0 ! Skip ...");
1129 continue;
1130
1131 }
1132
ff0753e1 1133 // Fill the first histos : = any generated Xi, not necessarily within the acceptance
1134 Double_t lRapXiMC = 0.5*TMath::Log((xiMC->Energy() + xiMC->Pz()) / (xiMC->Energy() - xiMC->Pz() +1.e-13));
b67ec6f7 1135
ff0753e1 1136 lHistEtaGenCasc ->Fill( xiMC->Eta() );
1137 l2dHistGenPtVsGenYGen ->Fill( xiMC->Pt(), lRapXiMC );
1138
b67ec6f7 1139
b67ec6f7 1140
ff0753e1 1141 // Check the emission of particle stays within the acceptance of the detector (cut in theta)
b67ec6f7 1142 if( xiMC->Theta() < TMath::Pi()/4.0 || xiMC->Theta() > 3.0*TMath::Pi()/4.0 ) continue;
1143 if( xiMC->GetNDaughters() != 2) continue;
1144 if( xiMC->GetDaughter(0) < 0 ) continue;
1145 if( xiMC->GetDaughter(1) < 0 ) continue;
1146
1147 TParticle* lDght0ofXi = lMCstack->Particle( xiMC->GetDaughter(0) );
1148 TParticle* lDght1ofXi = lMCstack->Particle( xiMC->GetDaughter(1) );
1149
1150 TParticle* lLambda = 0;
1151 TParticle* lBach = 0;
1152
1153 // Xi - Case 1
1154 if( lDght0ofXi->GetPdgCode() == lPdgCodeLambda && // Here !
1155 lDght1ofXi->GetPdgCode() == lPdgCodeBach ){ // Here !
1156
1157 lLambda = lDght0ofXi;
1158 lBach = lDght1ofXi;
1159 }// end if dghter 0 = Lambda and dghter 1 = Pi-
1160
1161 // Xi - Case 2
1162 else if( lDght0ofXi->GetPdgCode() == lPdgCodeBach && // Here !
1163 lDght1ofXi->GetPdgCode() == lPdgCodeLambda ){ // Here !
1164
1165 lBach = lDght0ofXi;
1166 lLambda = lDght1ofXi;
1167 }// end if dghter 0 = Pi- and dghter 1 = Lambda
1168
1169 // V0 otherwise - Case 3
1170 else continue;
1171
ff0753e1 1172 // Check the emission of particle stays within the acceptance of the detector (cut in pt + theta)
b67ec6f7 1173 if( lLambda->Theta() < TMath::Pi()/4.0 || lLambda->Theta() > 3.0*TMath::Pi()/4.0 ) continue;
1174 if( lBach->Theta() < TMath::Pi()/4.0 || lBach->Theta() > 3.0*TMath::Pi()/4.0 ) continue;
1175
1176 if( lBach->Pt() < 0.2 ) continue;
1177
1178
1179
1180 // - V0 level ... _____________________________________________________________
1181 TParticle* lDghtBarV0 = 0;
1182 TParticle* lDghtMesV0 = 0;
1183
1184 if( lLambda->GetNDaughters() != 2 ) continue;
1185 if( lLambda->GetDaughter(0) < 0 ) continue;
1186 if( lLambda->GetDaughter(1) < 0 ) continue;
1187
1188
1189 TParticle* lDght0ofLambda = lMCstack->Particle( lLambda->GetDaughter(0) );
1190 TParticle* lDght1ofLambda = lMCstack->Particle( lLambda->GetDaughter(1) );
1191
1192 // V0 - Case 1
1193 if( lDght0ofLambda->GetPdgCode() == lPdgCodeDghtBarV0 && // Here !
1194 lDght1ofLambda->GetPdgCode() == lPdgCodeDghtMesV0 ){ // Here !
1195
1196 lDghtBarV0 = lDght0ofLambda;
1197 lDghtMesV0 = lDght1ofLambda;
1198 }// end if dghter 0 = Proton and dghter 1 = Pi-
1199
1200 // V0 - Case 2
1201 else if( lDght0ofLambda->GetPdgCode() == lPdgCodeDghtMesV0 && // Here !
1202 lDght1ofLambda->GetPdgCode() == lPdgCodeDghtBarV0 ){ // Here !
1203
1204 lDghtMesV0 = lDght0ofLambda;
1205 lDghtBarV0 = lDght1ofLambda;
1206 }// end if dghter 0 = Pi- and dghter 1 = proton
1207
1208 // V0 otherwise - Case 3
1209 else continue;
1210
1211
1212 // Check the emission of particle stays within the acceptance of the detector
1213 if( lDghtBarV0->Theta() < TMath::Pi()/4.0 || lDghtBarV0->Theta() > 3.0*TMath::Pi()/4.0 ) continue;
1214 if( lDghtMesV0->Theta() < TMath::Pi()/4.0 || lDghtMesV0->Theta() > 3.0*TMath::Pi()/4.0 ) continue;
1215
1216 if( lDghtBarV0->Pt() < 0.5 ) continue;
1217 if( lDghtMesV0->Pt() < 0.2 ) continue;
1218
1219
1220
1221 // - Just to know which file is currently open : locate the file containing Xi
1222 //cout << "Name of the file containing generated Xi :" << fInputHandler->GetTree()->GetCurrentFile()->GetName()
1223 // << endl;
1224
ff0753e1 1225 Double_t lRadToDeg = 180.0/TMath::Pi();
1226
b67ec6f7 1227 // - Filling histos ... _________________________________________________________________
1228 lHistThetaGenCasc ->Fill( lRadToDeg * xiMC->Theta() );
ff0753e1 1229 l2dHistGenPtVsGenYFdbl ->Fill( xiMC->Pt(), lRapXiMC );
b67ec6f7 1230
1231 // - Fill theta histos for Lambda and Bach
1232 lHistThetaLambda ->Fill( lRadToDeg * lLambda->Theta() );
1233 lHistThetaBach ->Fill( lRadToDeg * lBach->Theta() );
1234
1235 // - Fill theta histos for V0 daughters
1236 lHistThetaBarDghter ->Fill( lRadToDeg * lDghtBarV0->Theta() );
1237 lHistThetaMesDghter ->Fill( lRadToDeg * lDghtMesV0->Theta() );
1238
1239 // - Fill pt histos.
1240 lHistPtBach ->Fill( lBach->Pt() );
1241 lHistPtBarDghter ->Fill( lDghtBarV0->Pt() );
1242 lHistPtMesDghter ->Fill( lDghtMesV0->Pt() );
db71a168 1243
b67ec6f7 1244 }// end if current particle = Xi-
1245
1246 }// This is the end of the loop on primaries
db71a168 1247
1248// - Re-initialisation of the local TH1F pointers
1249lHistEtaGenCasc = 0x0;
ff0753e1 1250l2dHistGenPtVsGenYGen = 0x0;
db71a168 1251
1252lHistThetaGenCasc = 0x0;
ff0753e1 1253l2dHistGenPtVsGenYFdbl = 0x0;
db71a168 1254lHistThetaLambda = 0x0;
1255lHistThetaBach = 0x0;
1256lHistThetaBarDghter = 0x0;
1257lHistThetaMesDghter = 0x0;
1258lHistPtBach = 0x0;
1259lHistPtBarDghter = 0x0;
1260lHistPtMesDghter = 0x0;
b67ec6f7 1261
1262} // end of loop over the different types of cascades (Xi-+, Omega-+)
1263
1264
1265
1266//__________________________________________________________________________
1267// Part 2 - Loop over the reconstructed candidates
1268
1269
1270// Temporary way : AOD awareness of the code to be developed
1271if(fAnalysisType == "AOD") return;
1272
1273
1274for (Int_t iXi = 0; iXi < ncascades; iXi++)
1275{// This is the begining of the Cascade loop
1276
1277 AliESDcascade *xiESD = lESDevent->GetCascade(iXi);
1278
1279 if (!xiESD) continue;
1280
1281 // - Step 1 : Preparing the general info about of the event
1282 //-------------
1283 //const AliESDVertex *lPrimaryVtx = lESDevent->GetPrimaryVertex(); // get the best vtx available
1284 // Double_t lPrimaryVtxPos[3] = {-100.0, -100.0, -100.0};
1285 // lPrimaryVtx->GetXYZ( lPrimaryVtxPos );
1286
1287 // Double_t lMagneticField = lESDevent->GetMagneticField( );
1288
1289
1290 // - Step 2 : Connection to daughter tracks of the current cascade
1291 //-------------
1292
1293 UInt_t lIdxPosXi = (UInt_t) TMath::Abs( xiESD->GetPindex() );
1294 UInt_t lIdxNegXi = (UInt_t) TMath::Abs( xiESD->GetNindex() );
1295 UInt_t lBachIdx = (UInt_t) TMath::Abs( xiESD->GetBindex() );
1296 // abs value not needed ; the index should always be positive (!= label ...)
1297
1298 AliESDtrack *pTrackXi = lESDevent->GetTrack( lIdxPosXi );
1299 AliESDtrack *nTrackXi = lESDevent->GetTrack( lIdxNegXi );
1300 AliESDtrack *bachTrackXi = lESDevent->GetTrack( lBachIdx );
1301 if (!pTrackXi || !nTrackXi || !bachTrackXi ) {
1302 Printf("ERROR: Could not retrieve one of the 3 daughter tracks of the cascade ...");
1303 continue;
1304 }
1305
1306
1307 // - Step 3 : Info over reconstructed cascades
1308 //-------------
1309
1310 Double_t lInvMassXiMinus = 0.;
1311 Double_t lInvMassXiPlus = 0.;
1312 Double_t lInvMassOmegaMinus = 0.;
1313 Double_t lInvMassOmegaPlus = 0.;
1314
1315 Double_t lV0quality = 0.;
1316
1317 if( bachTrackXi->Charge() < 0 ) {
1318 lV0quality = 0.;
1319 xiESD->ChangeMassHypothesis(lV0quality , 3312);
1320 // Calculate the effective mass of the Xi- candidate.
1321 // pdg code 3312 = Xi-
1322 lInvMassXiMinus = xiESD->GetEffMassXi();
1323
1324 lV0quality = 0.;
1325 xiESD->ChangeMassHypothesis(lV0quality , 3334);
1326 // Calculate the effective mass of the Xi- candidate.
1327 // pdg code 3334 = Omega-
1328 lInvMassOmegaMinus = xiESD->GetEffMassXi();
1329
1330 lV0quality = 0.;
1331 xiESD->ChangeMassHypothesis(lV0quality , 3312); // Back to default hyp.
1332
1333 }
1334
1335 if( bachTrackXi->Charge() > 0 ){
1336 lV0quality = 0.;
1337 xiESD->ChangeMassHypothesis(lV0quality , -3312);
1338 // Calculate the effective mass of the Xi+ candidate.
1339 // pdg code -3312 = Xi+
1340 lInvMassXiPlus = xiESD->GetEffMassXi();
1341
1342 lV0quality = 0.;
1343 xiESD->ChangeMassHypothesis(lV0quality , -3334);
1344 // Calculate the effective mass of the Xi+ candidate.
1345 // pdg code -3334 = Omega+
1346 lInvMassOmegaPlus = xiESD->GetEffMassXi();
1347
1348 lV0quality = 0.;
1349 xiESD->ChangeMassHypothesis(lV0quality , -3312); // Back to "default" hyp.
1350 }
1351
1352 Double_t lChargeXi = xiESD->Charge();
1353
1354 if( lChargeXi < 0 ) fHistMassXiMinus ->Fill( lInvMassXiMinus );
1355 if( lChargeXi > 0 ) fHistMassXiPlus ->Fill( lInvMassXiPlus );
1356 if( lChargeXi < 0 ) fHistMassOmegaMinus ->Fill( lInvMassOmegaMinus );
1357 if( lChargeXi > 0 ) fHistMassOmegaPlus ->Fill( lInvMassOmegaPlus );
1358
1359
f87cd3db 1360 // - Step 4 : PID info
1361 //-------------
1362
1363 Bool_t lIsBachelorKaon = kFALSE;
1364 Bool_t lIsBachelorPion = kFALSE;
1365
f870ac91 1366 // 4.1 - Combined PID
f87cd3db 1367 // Reasonable guess for the priors for the cascade track sample
1368 Double_t lPriorsGuessXi[5] = {0.0, 0.0, 2, 0, 1};
1369 Double_t lPriorsGuessOmega[5] = {0.0, 0.0, 1, 1, 1};
f870ac91 1370 AliPID pidXi; pidXi.SetPriors( lPriorsGuessXi );
1371 AliPID pidOmega; pidOmega.SetPriors( lPriorsGuessOmega );
1372 Double_t ppion = -2.0;
1373 Double_t pkaon = -2.0;
f87cd3db 1374
1375 if( bachTrackXi->IsOn(AliESDtrack::kESDpid) ){ // Combined PID exists
1376 Double_t r[10]; bachTrackXi->GetESDpid(r);
1377 pidXi.SetProbabilities(r);
1378 pidOmega.SetProbabilities(r);
1379 // Check if the bachelor track is a pion
f870ac91 1380 ppion = pidXi.GetProbability(AliPID::kPion);
f87cd3db 1381 if (ppion > pidXi.GetProbability(AliPID::kElectron) &&
1382 ppion > pidXi.GetProbability(AliPID::kMuon) &&
1383 ppion > pidXi.GetProbability(AliPID::kKaon) &&
1384 ppion > pidXi.GetProbability(AliPID::kProton) ) lIsBachelorPion = kTRUE;
1385 // Check if the bachelor track is a kaon
f870ac91 1386 pkaon = pidOmega.GetProbability(AliPID::kKaon);
f87cd3db 1387 if (pkaon > pidOmega.GetProbability(AliPID::kElectron) &&
1388 pkaon > pidOmega.GetProbability(AliPID::kMuon) &&
1389 pkaon > pidOmega.GetProbability(AliPID::kPion) &&
1390 pkaon > pidOmega.GetProbability(AliPID::kProton) ) lIsBachelorKaon = kTRUE;
1391
1392 }// end if bachelor track with existing combined PID
1393
f87cd3db 1394 if( lChargeXi < 0 && lIsBachelorPion ) fHistMassWithCombPIDXiMinus ->Fill( lInvMassXiMinus );
1395 if( lChargeXi > 0 && lIsBachelorPion ) fHistMassWithCombPIDXiPlus ->Fill( lInvMassXiPlus );
1396 if( lChargeXi < 0 && lIsBachelorKaon ) fHistMassWithCombPIDOmegaMinus ->Fill( lInvMassOmegaMinus );
1397 if( lChargeXi > 0 && lIsBachelorKaon ) fHistMassWithCombPIDOmegaPlus ->Fill( lInvMassOmegaPlus );
1398
1399
f870ac91 1400 // 4.2 - PID proba Vs Pt(Bach)
1401 Int_t lblBachForPID = (Int_t) TMath::Abs( bachTrackXi->GetLabel() );
1402 TParticle* mcBachForPID = lMCstack->Particle( lblBachForPID );
1403 Double_t lmcPtBach = mcBachForPID->Pt();
1404
1405 if(lIsBachelorPion) f2dHistPIDprobaPionVsMCPtBach->Fill( lmcPtBach, ppion );
1406 if(lIsBachelorKaon) f2dHistPIDprobaKaonVsMCPtBach->Fill( lmcPtBach, pkaon );
1407
1408
1409 // 4.3 - MC perfect PID
f87cd3db 1410 Bool_t lIsBachelorMCPiMinus = kFALSE;
1411 Bool_t lIsBachelorMCPiPlus = kFALSE;
1412 Bool_t lIsBachelorMCKMinus = kFALSE;
1413 Bool_t lIsBachelorMCKPlus = kFALSE;
1414
f87cd3db 1415 if( mcBachForPID->GetPdgCode() == -211) lIsBachelorMCPiMinus = kTRUE;
1416 if( mcBachForPID->GetPdgCode() == 211) lIsBachelorMCPiPlus = kTRUE;
1417 if( mcBachForPID->GetPdgCode() == -321) lIsBachelorMCKMinus = kTRUE;
1418 if( mcBachForPID->GetPdgCode() == 321) lIsBachelorMCKPlus = kTRUE;
1419
1420 if( lChargeXi < 0 && lIsBachelorMCPiMinus ) fHistMassWithMcPIDXiMinus ->Fill( lInvMassXiMinus );
1421 if( lChargeXi > 0 && lIsBachelorMCPiPlus ) fHistMassWithMcPIDXiPlus ->Fill( lInvMassXiPlus );
1422 if( lChargeXi < 0 && lIsBachelorMCKMinus ) fHistMassWithMcPIDOmegaMinus ->Fill( lInvMassOmegaMinus );
1423 if( lChargeXi > 0 && lIsBachelorMCKPlus ) fHistMassWithMcPIDOmegaPlus ->Fill( lInvMassOmegaPlus );
1424
f870ac91 1425
b67ec6f7 1426
1427
f870ac91 1428 // - Step 5 : MC association (care : lots of "continue;" below this line)
b67ec6f7 1429 //-------------
1430
1431 Bool_t lAssoXiMinus = kFALSE;
1432 Bool_t lAssoXiPlus = kFALSE;
1433 Bool_t lAssoOmegaMinus = kFALSE;
1434 Bool_t lAssoOmegaPlus = kFALSE;
1435
1436
1437 if(fDebug > 5)
1438 cout << "MC EventNumber : " << lMCevent->Header()->GetEvent()
1439 << " / MC event Number in Run : " << lMCevent->Header()->GetEventNrInRun() << endl;
1440
f870ac91 1441 // - Step 5.1 : level of the V0 daughters
b67ec6f7 1442
1443 Int_t lblPosV0Dghter = (Int_t) TMath::Abs( pTrackXi->GetLabel() );
1444 // Abs value = needed ! question of quality track association ...
1445 Int_t lblNegV0Dghter = (Int_t) TMath::Abs( nTrackXi->GetLabel() );
1446
1447 TParticle* mcPosV0Dghter = lMCstack->Particle( lblPosV0Dghter );
1448 TParticle* mcNegV0Dghter = lMCstack->Particle( lblNegV0Dghter );
1449
1450
f870ac91 1451 // - Step 5.2 : level of the Xi daughters
b67ec6f7 1452
1453 Int_t lblMotherPosV0Dghter = mcPosV0Dghter->GetFirstMother() ;
1454 Int_t lblMotherNegV0Dghter = mcNegV0Dghter->GetFirstMother();
1455
f87cd3db 1456 if( lblMotherPosV0Dghter != lblMotherNegV0Dghter) continue; // same mother
b67ec6f7 1457 if( lblMotherPosV0Dghter < 0 ) continue; // mother != primary (!= -1)
1458 if( lblMotherNegV0Dghter < 0 ) continue;
1459
1460
1461 // mothers = Lambda candidate ... a priori
1462
1463 TParticle* mcMotherPosV0Dghter = lMCstack->Particle( lblMotherPosV0Dghter );
1464 TParticle* mcMotherNegV0Dghter = lMCstack->Particle( lblMotherNegV0Dghter );
1465
1466 Int_t lblBach = (Int_t) TMath::Abs( bachTrackXi->GetLabel() );
1467 TParticle* mcBach = lMCstack->Particle( lblBach );
1468
1469
f870ac91 1470 // - Step 5.3 : level of Xi candidate
b67ec6f7 1471
1472 Int_t lblGdMotherPosV0Dghter = mcMotherPosV0Dghter->GetFirstMother() ;
1473 Int_t lblGdMotherNegV0Dghter = mcMotherNegV0Dghter->GetFirstMother() ;
1474
1475 if( lblGdMotherPosV0Dghter != lblGdMotherNegV0Dghter ) continue;
1476 if( lblGdMotherPosV0Dghter < 0 ) continue; // primary lambda ...
1477 if( lblGdMotherNegV0Dghter < 0 ) continue; // primary lambda ...
1478
1479
1480 // Gd mothers = Xi candidate ... a priori
1481
1482 TParticle* mcGdMotherPosV0Dghter = lMCstack->Particle( lblGdMotherPosV0Dghter );
1483 TParticle* mcGdMotherNegV0Dghter = lMCstack->Particle( lblGdMotherNegV0Dghter );
1484
1485 Int_t lblMotherBach = (Int_t) TMath::Abs( mcBach->GetFirstMother() );
1486
1487 if( lblMotherBach != lblGdMotherPosV0Dghter ) continue; //same mother for bach and V0 daughters
1488
1489 TParticle* mcMotherBach = lMCstack->Particle( lblMotherBach );
1490
1491
f870ac91 1492 // - Step 5.4 : Manage boolean for association
b67ec6f7 1493
1494 if( mcMotherBach ->GetPdgCode() == 3312 &&
1495 mcGdMotherPosV0Dghter ->GetPdgCode() == 3312 &&
1496 mcGdMotherNegV0Dghter ->GetPdgCode() == 3312) lAssoXiMinus = kTRUE;
1497
1498 else if( mcMotherBach ->GetPdgCode() == -3312 &&
1499 mcGdMotherPosV0Dghter ->GetPdgCode() == -3312 &&
1500 mcGdMotherNegV0Dghter ->GetPdgCode() == -3312) lAssoXiPlus = kTRUE;
1501
1502 else if( mcMotherBach ->GetPdgCode() == 3334 &&
1503 mcGdMotherPosV0Dghter ->GetPdgCode() == 3334 &&
1504 mcGdMotherNegV0Dghter ->GetPdgCode() == 3334) lAssoOmegaMinus = kTRUE;
1505
1506 else if( mcMotherBach ->GetPdgCode() == -3334 &&
1507 mcGdMotherPosV0Dghter ->GetPdgCode() == -3334 &&
1508 mcGdMotherNegV0Dghter ->GetPdgCode() == -3334) lAssoOmegaPlus = kTRUE;
1509
1510
1511
1512 if(!lAssoXiMinus && !lAssoXiPlus && !lAssoOmegaMinus && !lAssoOmegaPlus) continue; // no association
1513
1514 // If a proper association exists ...
1515
1516 if(fDebug > 4){
1517 cout << "XiMinus = " << lAssoXiMinus << endl;
1518 cout << "XiPlus = " << lAssoXiPlus << endl;
1519 cout << "OmegaMinus = " << lAssoOmegaMinus << endl;
1520 cout << "OmegaPlus = " << lAssoOmegaPlus << endl
1521 << "----" << endl;
1522 }
1523
1524
1525 if(fDebug > 5){
1526 cout << endl;
1527 cout << "- V0 daughters - " << endl;
1528 cout << " + V0 Pos. / Label : " << lblPosV0Dghter
1529 << " - Pdg Code : " << mcPosV0Dghter->GetTitle() << endl;
1530 cout << " - V0 Neg. / Label : " << lblNegV0Dghter
1531 << " - Pdg Code : " << mcNegV0Dghter->GetTitle() << endl;
1532
1533 cout << "- Xi daughters - " << endl;
1534 cout << " + V0 Pos. mother / Label : " << lblMotherPosV0Dghter
1535 << " - Pdg Code : " << mcMotherPosV0Dghter->GetTitle() << endl;
1536 cout << " - V0 Neg. mother / Label : " << lblMotherNegV0Dghter
1537 << " - Pdg Code : " << mcMotherNegV0Dghter->GetTitle() << endl;
1538
1539 cout << " -- Bach. / Label :" << lblBach
1540 << " - Pdg Code : " << mcBach->GetTitle() << endl;
1541
1542 cout << "- Xi candidate -" << endl;
1543 cout << " + V0 Pos. Gd Mother / Label : " << lblGdMotherPosV0Dghter
1544 << " - Pdg Code : " << mcGdMotherPosV0Dghter->GetTitle() << endl;
1545 cout << " - V0 Neg. Gd Mother / Label : " << lblGdMotherNegV0Dghter
1546 << " - Pdg Code : "<< mcGdMotherNegV0Dghter->GetTitle() << endl;
1547
1548 cout << " -- Mother Bach. / Label : " << lblMotherBach
1549 << " - Pdg Code : " << mcMotherBach->GetTitle() << endl;
1550 cout << endl;
1551 }
1552
1553
f870ac91 1554 // - Step 6 : Plots around the cascade candidates associated with MC
b67ec6f7 1555 //-------------
1556
1557 Double_t lmcPt = mcMotherBach->Pt();
1558 Double_t lmcRapXi = 0.5*TMath::Log( (mcMotherBach->Energy() + mcMotherBach->Pz()) /
1559 (mcMotherBach->Energy() - mcMotherBach->Pz() +1.e-13) );
1560 Double_t lmcEta = mcMotherBach->Eta();
1561 Double_t lmcTransvRadius = mcBach->R(); // to get the decay point of Xi, = the production vertex of Bachelor ...
1562
1563 Double_t lrecoPt = xiESD->Pt();
1564 Double_t lrecoTransvRadius = TMath::Sqrt( xiESD->Xv() * xiESD->Xv() + xiESD->Yv() * xiESD->Yv() );
1565
ff0753e1 1566 // - Histos for the cascade candidates associated with MC
b67ec6f7 1567
1568 if( lChargeXi < 0 && lAssoXiMinus){
1569 fHistAsMCMassXiMinus ->Fill( lInvMassXiMinus );
ff0753e1 1570 if(lIsBachelorPion) f2dHistAsMCandCombPIDGenPtVsGenYXiMinus->Fill( lmcPt, lmcRapXi );
1571 f2dHistAsMCGenPtVsGenYXiMinus ->Fill( lmcPt, lmcRapXi );
b67ec6f7 1572 fHistAsMCGenEtaXiMinus ->Fill( lmcEta );
1573 f2dHistAsMCResPtXiMinus ->Fill( lmcPt, (lrecoPt - lmcPt)/ lmcPt );
1574 f2dHistAsMCResRXiMinus ->Fill( lmcTransvRadius, (lrecoTransvRadius - lmcTransvRadius)/ lmcTransvRadius );
1575 }
1576
1577 else if( lChargeXi > 0 && lAssoXiPlus){
1578 fHistAsMCMassXiPlus ->Fill( lInvMassXiPlus );
ff0753e1 1579 if(lIsBachelorPion) f2dHistAsMCandCombPIDGenPtVsGenYXiPlus->Fill( lmcPt, lmcRapXi );
1580 f2dHistAsMCGenPtVsGenYXiPlus ->Fill( lmcPt, lmcRapXi );
b67ec6f7 1581 fHistAsMCGenEtaXiPlus ->Fill( lmcEta );
1582 f2dHistAsMCResPtXiPlus ->Fill( lmcPt, (lrecoPt - lmcPt)/ lmcPt );
1583 f2dHistAsMCResRXiPlus ->Fill( lmcTransvRadius, (lrecoTransvRadius - lmcTransvRadius)/ lmcTransvRadius );
1584 }
1585
1586 else if( lChargeXi < 0 && lAssoOmegaMinus){
1587 fHistAsMCMassOmegaMinus ->Fill( lInvMassOmegaMinus );
ff0753e1 1588 if(lIsBachelorKaon) f2dHistAsMCandCombPIDGenPtVsGenYOmegaMinus->Fill( lmcPt, lmcRapXi );
1589 f2dHistAsMCGenPtVsGenYOmegaMinus ->Fill( lmcPt, lmcRapXi );
b67ec6f7 1590 fHistAsMCGenEtaOmegaMinus ->Fill( lmcEta );
1591 f2dHistAsMCResPtOmegaMinus ->Fill( lmcPt, (lrecoPt - lmcPt)/ lmcPt );
1592 f2dHistAsMCResROmegaMinus ->Fill( lmcTransvRadius, (lrecoTransvRadius - lmcTransvRadius)/ lmcTransvRadius );
1593 }
1594
1595 else if( lChargeXi > 0 && lAssoOmegaPlus){
1596 fHistAsMCMassOmegaPlus ->Fill( lInvMassOmegaPlus );
ff0753e1 1597 if(lIsBachelorKaon) f2dHistAsMCandCombPIDGenPtVsGenYOmegaPlus->Fill( lmcPt, lmcRapXi );
1598 f2dHistAsMCGenPtVsGenYOmegaPlus ->Fill( lmcPt, lmcRapXi );
b67ec6f7 1599 fHistAsMCGenEtaOmegaPlus ->Fill( lmcEta );
1600 f2dHistAsMCResPtOmegaPlus ->Fill( lmcPt, (lrecoPt - lmcPt)/ lmcPt );
1601 f2dHistAsMCResROmegaPlus ->Fill( lmcTransvRadius, (lrecoTransvRadius - lmcTransvRadius)/ lmcTransvRadius );
1602 }
1603
1604
1605}// End of loop over reconstructed cascades
1606
1607
1608
1609
1610 // Post output data.
1611 PostData(1, fListHistCascade);
1612}
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623//________________________________________________________________________
1624void AliAnalysisTaskCheckPerformanceCascade::Terminate(Option_t *)
1625{
1626 // Draw result to the screen
1627 // Called once at the end of the query
f870ac91 1628
c3b8bf85 1629 TList *cRetrievedList = 0x0;
1630 cRetrievedList = (TList*)GetOutputData(1);
1631 if(!cRetrievedList){
f870ac91 1632 Printf("ERROR - AliAnalysisTaskCheckPerformanceCascade : ouput data container list not available\n");
1633 return;
1634 }
1635
c3b8bf85 1636 fHistMCTrackMultiplicity = dynamic_cast<TH1F*> ( cRetrievedList->FindObject("fHistMCTrackMultiplicity") );
b67ec6f7 1637 if (!fHistMCTrackMultiplicity) {
c3b8bf85 1638 Printf("ERROR - AliAnalysisTaskCheckPerformanceCascade : fHistMCTrackMultiplicity not available");
b67ec6f7 1639 return;
1640 }
f870ac91 1641
1642
c3b8bf85 1643 TCanvas *canCheckPerformanceCascade = new TCanvas("AliAnalysisTaskCheckPerformanceCascade","Multiplicity",10,10,510,510);
1644 canCheckPerformanceCascade->cd(1)->SetLogy();
b67ec6f7 1645
1646 fHistMCTrackMultiplicity->SetMarkerStyle(22);
1647 fHistMCTrackMultiplicity->DrawCopy("E");
b67ec6f7 1648
1649}