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471f69dc | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
d594b22e | 16 | /* |
17 | $Log$ | |
b7a73953 | 18 | Revision 1.16 2002/02/08 11:43:05 morsch |
19 | SetOutputFileName(..) allows to specify an output file to which the | |
20 | reconstructed jets are written. If not set output goes to input file. | |
21 | Attention call Init() before processing. | |
22 | ||
08a3fb06 | 23 | Revision 1.15 2002/02/02 08:37:18 morsch |
24 | Formula for rB corrected. | |
25 | ||
db5026bf | 26 | Revision 1.14 2002/02/01 08:55:30 morsch |
27 | Fill map with Et and pT. | |
28 | ||
f719d9b7 | 29 | Revision 1.13 2002/01/31 09:37:36 morsch |
30 | Geometry parameters in constructor and call of SetCellSize() | |
31 | ||
be9787fe | 32 | Revision 1.12 2002/01/23 13:40:23 morsch |
33 | Fastidious debug print statement removed. | |
34 | ||
e4717047 | 35 | Revision 1.11 2002/01/22 17:25:47 morsch |
36 | Some corrections for event mixing and bg event handling. | |
37 | ||
610f27c9 | 38 | Revision 1.10 2002/01/22 10:31:44 morsch |
39 | Some correction for bg mixing. | |
40 | ||
46955412 | 41 | Revision 1.9 2002/01/21 16:28:42 morsch |
42 | Correct sign of dphi. | |
43 | ||
f8f69f71 | 44 | Revision 1.8 2002/01/21 16:05:31 morsch |
45 | - different phi-bin for hadron correction | |
46 | - provisions for background mixing. | |
47 | ||
ff114de3 | 48 | Revision 1.7 2002/01/21 15:47:18 morsch |
49 | Bending radius correctly in cm. | |
50 | ||
b3feface | 51 | Revision 1.6 2002/01/21 12:53:50 morsch |
52 | authors | |
53 | ||
0c207dbc | 54 | Revision 1.5 2002/01/21 12:47:47 morsch |
55 | Possibility to include K0long and neutrons. | |
56 | ||
d53b7b0b | 57 | Revision 1.4 2002/01/21 11:03:21 morsch |
58 | Phi propagation introduced in FillFromTracks. | |
59 | ||
26dadf3a | 60 | Revision 1.3 2002/01/18 05:07:56 morsch |
61 | - hadronic correction | |
62 | - filling of digits | |
63 | - track selection upon EMCAL information | |
64 | ||
d594b22e | 65 | */ |
66 | ||
0c207dbc | 67 | //*-- Authors: Andreas Morsch (CERN) |
68 | //* J.L. Klay (LBL) | |
69 | //* Aleksei Pavlinov (WSU) | |
70 | ||
d594b22e | 71 | // From root ... |
471f69dc | 72 | #include <TClonesArray.h> |
73 | #include <TTree.h> | |
d594b22e | 74 | #include <TBranchElement.h> |
471f69dc | 75 | #include <TFile.h> |
76 | #include <TH2.h> | |
77 | #include <TAxis.h> | |
78 | #include <TParticle.h> | |
79 | #include <TParticlePDG.h> | |
d594b22e | 80 | |
81 | // From AliRoot ... | |
471f69dc | 82 | #include "AliEMCALJetFinder.h" |
d594b22e | 83 | #include "AliEMCALFast.h" |
471f69dc | 84 | #include "AliEMCALGeometry.h" |
85 | #include "AliEMCALHit.h" | |
d594b22e | 86 | #include "AliEMCALDigit.h" |
87 | #include "AliEMCALDigitizer.h" | |
88 | #include "AliEMCALHadronCorrection.h" | |
471f69dc | 89 | #include "AliRun.h" |
26dadf3a | 90 | #include "AliMagF.h" |
91 | #include "AliMagFCM.h" | |
471f69dc | 92 | #include "AliEMCAL.h" |
93 | #include "AliHeader.h" | |
d53b7b0b | 94 | #include "AliPDG.h" |
471f69dc | 95 | |
ff114de3 | 96 | // Interface to FORTRAN |
97 | #include "Ecommon.h" | |
98 | ||
99 | ||
471f69dc | 100 | ClassImp(AliEMCALJetFinder) |
101 | ||
102 | //____________________________________________________________________________ | |
103 | AliEMCALJetFinder::AliEMCALJetFinder() | |
104 | { | |
105 | // Default constructor | |
d594b22e | 106 | fJets = 0; |
107 | fNjets = 0; | |
108 | fLego = 0; | |
ff114de3 | 109 | fLegoB = 0; |
d594b22e | 110 | fTrackList = 0; |
111 | fPtT = 0; | |
112 | fEtaT = 0; | |
113 | fPhiT = 0; | |
ff114de3 | 114 | fPtB = 0; |
115 | fEtaB = 0; | |
116 | fPhiB = 0; | |
b7a73953 | 117 | fHCorrection = 0; |
d594b22e | 118 | fHadronCorrector = 0; |
b7a73953 | 119 | |
08a3fb06 | 120 | fOutFileName = 0; |
121 | fOutFile = 0; | |
122 | fInFile = 0; | |
123 | fEvent = 0; | |
b7a73953 | 124 | |
125 | SetParametersForBgSubtraction(); | |
471f69dc | 126 | } |
127 | ||
128 | AliEMCALJetFinder::AliEMCALJetFinder(const char* name, const char *title) | |
129 | : TTask(name, title) | |
130 | { | |
131 | // Constructor | |
132 | fJets = new TClonesArray("AliEMCALJet",10000); | |
133 | fNjets = 0; | |
d594b22e | 134 | for (Int_t i = 0; i < 30000; i++) |
471f69dc | 135 | { |
136 | fEtCell[i] = 0.; | |
137 | fEtaCell[i] = 0.; | |
138 | fPhiCell[i] = 0.; | |
139 | } | |
140 | fLego = 0; | |
ff114de3 | 141 | fTrackList = 0; |
142 | fPtT = 0; | |
143 | fEtaT = 0; | |
144 | fPhiT = 0; | |
145 | fPtB = 0; | |
146 | fEtaB = 0; | |
147 | fPhiB = 0; | |
b7a73953 | 148 | fHCorrection = 0; |
149 | fHadronCorrector = 0; | |
150 | fBackground = 0; | |
08a3fb06 | 151 | fOutFileName = 0; |
152 | fOutFile = 0; | |
153 | fInFile = 0; | |
154 | fEvent = 0; | |
0c207dbc | 155 | // |
d594b22e | 156 | SetPtCut(); |
157 | SetMomentumSmearing(); | |
158 | SetEfficiencySim(); | |
159 | SetDebug(); | |
160 | SetHadronCorrection(); | |
161 | SetSamplingFraction(); | |
d53b7b0b | 162 | SetIncludeK0andN(); |
471f69dc | 163 | |
b7a73953 | 164 | SetParametersForBgSubtraction(); |
165 | } | |
471f69dc | 166 | |
b7a73953 | 167 | void AliEMCALJetFinder::SetParametersForBgSubtraction |
168 | (Int_t mode, Float_t minMove, Float_t maxMove, Float_t precBg) | |
169 | { | |
170 | // see file /home/pavlinov/cosmic/pythia/jetFinderParamData.inc | |
171 | // at WSU Linux cluster - 11-feb-2002 | |
172 | // These parameters must be tuned more carefull !!! | |
173 | SetMode(mode); | |
174 | SetMinMove(minMove); | |
175 | SetMaxMove(maxMove); | |
176 | SetPrecBg(precBg); | |
177 | } | |
471f69dc | 178 | |
179 | //____________________________________________________________________________ | |
180 | AliEMCALJetFinder::~AliEMCALJetFinder() | |
181 | { | |
182 | // Destructor | |
183 | // | |
184 | if (fJets){ | |
185 | fJets->Delete(); | |
186 | delete fJets; | |
187 | } | |
188 | } | |
189 | ||
190 | ||
191 | ||
3bc109a9 | 192 | |
471f69dc | 193 | #ifndef WIN32 |
194 | # define jet_finder_ua1 jet_finder_ua1_ | |
195 | # define hf1 hf1_ | |
196 | # define type_of_call | |
197 | ||
198 | #else | |
199 | # define jet_finder_ua1 J | |
200 | # define hf1 HF1 | |
201 | # define type_of_call _stdcall | |
202 | #endif | |
203 | ||
204 | extern "C" void type_of_call | |
205 | jet_finder_ua1(Int_t& ncell, Int_t& ncell_tot, | |
206 | Float_t etc[30000], Float_t etac[30000], | |
207 | Float_t phic[30000], | |
208 | Float_t& min_move, Float_t& max_move, Int_t& mode, | |
209 | Float_t& prec_bg, Int_t& ierror); | |
210 | ||
211 | extern "C" void type_of_call hf1(Int_t& id, Float_t& x, Float_t& wgt); | |
212 | ||
213 | ||
214 | ||
215 | ||
08a3fb06 | 216 | void AliEMCALJetFinder::Init() |
217 | { | |
218 | // | |
219 | // Geometry and I/O initialization | |
220 | // | |
221 | // | |
222 | // | |
223 | // Get geometry parameters from EMCAL | |
224 | // | |
225 | // | |
226 | // Geometry | |
227 | AliEMCAL* pEMCAL = (AliEMCAL*) gAlice->GetModule("EMCAL"); | |
228 | AliEMCALGeometry* geom = | |
229 | AliEMCALGeometry::GetInstance(pEMCAL->GetTitle(), ""); | |
230 | fNbinEta = geom->GetNZ(); | |
231 | fNbinPhi = geom->GetNPhi(); | |
232 | fPhiMin = geom->GetArm1PhiMin()*TMath::Pi()/180.; | |
233 | fPhiMax = geom->GetArm1PhiMax()*TMath::Pi()/180.; | |
234 | fEtaMin = geom->GetArm1EtaMin(); | |
235 | fEtaMax = geom->GetArm1EtaMax(); | |
236 | fDphi = (fPhiMax-fPhiMin)/fNbinEta; | |
237 | fDeta = (fEtaMax-fEtaMin)/fNbinEta; | |
238 | fNtot = fNbinPhi*fNbinEta; | |
239 | // | |
240 | SetCellSize(fDeta, fDphi); | |
241 | // | |
242 | // I/O | |
243 | if (fOutFileName) fOutFile = new TFile(fOutFileName, "recreate"); | |
244 | } | |
471f69dc | 245 | |
246 | void AliEMCALJetFinder::Find(Int_t ncell, Int_t ncell_tot, Float_t etc[30000], | |
247 | Float_t etac[30000], Float_t phic[30000], | |
248 | Float_t min_move, Float_t max_move, Int_t mode, | |
249 | Float_t prec_bg, Int_t ierror) | |
250 | { | |
251 | // Wrapper for fortran coded jet finder | |
252 | // Full argument list | |
253 | jet_finder_ua1(ncell, ncell_tot, etc, etac, phic, | |
254 | min_move, max_move, mode, prec_bg, ierror); | |
255 | // Write result to output | |
b7a73953 | 256 | if(fWrite) WriteJets(); |
257 | fEvent++; | |
471f69dc | 258 | } |
259 | ||
260 | void AliEMCALJetFinder::Find() | |
261 | { | |
262 | // Wrapper for fortran coded jet finder using member data for | |
263 | // argument list | |
264 | ||
b7a73953 | 265 | Float_t min_move = fMinMove; |
266 | Float_t max_move = fMaxMove; | |
267 | Int_t mode = fMode; | |
268 | Float_t prec_bg = fPrecBg; | |
269 | Int_t ierror; | |
270 | ||
271 | ResetJets(); // 4-feb-2002 by PAI | |
471f69dc | 272 | |
273 | jet_finder_ua1(fNcell, fNtot, fEtCell, fEtaCell, fPhiCell, | |
274 | min_move, max_move, mode, prec_bg, ierror); | |
b7a73953 | 275 | fError = ierror; |
471f69dc | 276 | // Write result to output |
3bc109a9 | 277 | Int_t njet = Njets(); |
d594b22e | 278 | |
3bc109a9 | 279 | for (Int_t nj=0; nj<njet; nj++) |
280 | { | |
d594b22e | 281 | |
3bc109a9 | 282 | fJetT[nj] = new AliEMCALJet(JetEnergy(nj), |
283 | JetPhiW(nj), | |
284 | JetEtaW(nj)); | |
285 | } | |
b7a73953 | 286 | |
287 | if(fNt) FindTracksInJetCone(); | |
288 | if(fWrite) WriteJets(); | |
08a3fb06 | 289 | fEvent++; |
471f69dc | 290 | } |
291 | ||
471f69dc | 292 | Int_t AliEMCALJetFinder::Njets() |
293 | { | |
294 | // Get number of reconstructed jets | |
295 | return EMCALJETS.njet; | |
296 | } | |
297 | ||
298 | Float_t AliEMCALJetFinder::JetEnergy(Int_t i) | |
299 | { | |
300 | // Get reconstructed jet energy | |
301 | return EMCALJETS.etj[i]; | |
302 | } | |
303 | ||
304 | Float_t AliEMCALJetFinder::JetPhiL(Int_t i) | |
305 | { | |
306 | // Get reconstructed jet phi from leading particle | |
307 | return EMCALJETS.phij[0][i]; | |
308 | } | |
309 | ||
310 | Float_t AliEMCALJetFinder::JetPhiW(Int_t i) | |
311 | { | |
312 | // Get reconstructed jet phi from weighting | |
313 | return EMCALJETS.phij[1][i]; | |
314 | } | |
315 | ||
316 | Float_t AliEMCALJetFinder::JetEtaL(Int_t i) | |
317 | { | |
318 | // Get reconstructed jet eta from leading particles | |
319 | return EMCALJETS.etaj[0][i]; | |
320 | } | |
321 | ||
322 | ||
323 | Float_t AliEMCALJetFinder::JetEtaW(Int_t i) | |
324 | { | |
325 | // Get reconstructed jet eta from weighting | |
326 | return EMCALJETS.etaj[1][i]; | |
327 | } | |
328 | ||
329 | void AliEMCALJetFinder::SetCellSize(Float_t eta, Float_t phi) | |
330 | { | |
331 | // Set grid cell size | |
332 | EMCALCELLGEO.etaCellSize = eta; | |
333 | EMCALCELLGEO.phiCellSize = phi; | |
334 | } | |
335 | ||
336 | void AliEMCALJetFinder::SetConeRadius(Float_t par) | |
337 | { | |
338 | // Set jet cone radius | |
339 | EMCALJETPARAM.coneRad = par; | |
3bc109a9 | 340 | fConeRadius = par; |
471f69dc | 341 | } |
342 | ||
343 | void AliEMCALJetFinder::SetEtSeed(Float_t par) | |
344 | { | |
345 | // Set et cut for seeds | |
346 | EMCALJETPARAM.etSeed = par; | |
d594b22e | 347 | fEtSeed = par; |
471f69dc | 348 | } |
349 | ||
350 | void AliEMCALJetFinder::SetMinJetEt(Float_t par) | |
351 | { | |
352 | // Set minimum jet et | |
353 | EMCALJETPARAM.ejMin = par; | |
d594b22e | 354 | fMinJetEt = par; |
471f69dc | 355 | } |
356 | ||
357 | void AliEMCALJetFinder::SetMinCellEt(Float_t par) | |
358 | { | |
359 | // Set et cut per cell | |
360 | EMCALJETPARAM.etMin = par; | |
d594b22e | 361 | fMinCellEt = par; |
471f69dc | 362 | } |
363 | ||
3bc109a9 | 364 | void AliEMCALJetFinder::SetPtCut(Float_t par) |
365 | { | |
366 | // Set pT cut on charged tracks | |
367 | fPtCut = par; | |
368 | } | |
369 | ||
471f69dc | 370 | |
371 | void AliEMCALJetFinder::Test() | |
372 | { | |
373 | // | |
374 | // Test the finder call | |
375 | // | |
376 | const Int_t nmax = 30000; | |
377 | Int_t ncell = 10; | |
378 | Int_t ncell_tot = 100; | |
379 | ||
380 | Float_t etc[nmax]; | |
381 | Float_t etac[nmax]; | |
382 | Float_t phic[nmax]; | |
383 | Float_t min_move = 0; | |
384 | Float_t max_move = 0; | |
385 | Int_t mode = 0; | |
386 | Float_t prec_bg = 0; | |
387 | Int_t ierror = 0; | |
388 | ||
389 | ||
390 | Find(ncell, ncell_tot, etc, etac, phic, | |
391 | min_move, max_move, mode, prec_bg, ierror); | |
392 | ||
393 | } | |
394 | ||
395 | // | |
396 | // I/O | |
397 | // | |
398 | ||
399 | void AliEMCALJetFinder::AddJet(const AliEMCALJet& jet) | |
400 | { | |
401 | // | |
402 | // Add a jet | |
403 | // | |
404 | TClonesArray &lrawcl = *fJets; | |
405 | new(lrawcl[fNjets++]) AliEMCALJet(jet); | |
406 | } | |
407 | ||
408 | void AliEMCALJetFinder::ResetJets() | |
409 | { | |
410 | // | |
411 | // Reset Jet List | |
412 | // | |
413 | fJets->Clear(); | |
414 | fNjets = 0; | |
415 | } | |
416 | ||
417 | void AliEMCALJetFinder::WriteJets() | |
418 | { | |
419 | // | |
420 | // Add all jets to the list | |
421 | // | |
422 | const Int_t kBufferSize = 4000; | |
08a3fb06 | 423 | const char* file = 0; |
424 | ||
471f69dc | 425 | Int_t njet = Njets(); |
08a3fb06 | 426 | |
3bc109a9 | 427 | for (Int_t nj = 0; nj < njet; nj++) |
471f69dc | 428 | { |
3bc109a9 | 429 | AddJet(*fJetT[nj]); |
430 | delete fJetT[nj]; | |
471f69dc | 431 | } |
3bc109a9 | 432 | |
08a3fb06 | 433 | // I/O |
434 | if (!fOutFileName) { | |
435 | // | |
436 | // output written to input file | |
437 | // | |
438 | AliEMCAL* pEMCAL = (AliEMCAL* )gAlice->GetModule("EMCAL"); | |
439 | TTree* pK = gAlice->TreeK(); | |
440 | file = (pK->GetCurrentFile())->GetName(); | |
441 | if (fDebug > 1) | |
442 | printf("Make Branch - TreeR address %p %p\n",gAlice->TreeR(), pEMCAL); | |
443 | if (fJets && gAlice->TreeR()) { | |
444 | pEMCAL->MakeBranchInTree(gAlice->TreeR(), | |
445 | "EMCALJets", | |
446 | &fJets, | |
447 | kBufferSize, | |
448 | file); | |
449 | } | |
450 | Int_t nev = gAlice->GetHeader()->GetEvent(); | |
451 | gAlice->TreeR()->Fill(); | |
452 | char hname[30]; | |
453 | sprintf(hname,"TreeR%d", nev); | |
454 | gAlice->TreeR()->Write(hname); | |
455 | gAlice->TreeR()->Reset(); | |
456 | } else { | |
457 | // | |
458 | // Output written to user specified output file | |
459 | // | |
460 | TTree* pK = gAlice->TreeK(); | |
461 | fInFile = pK->GetCurrentFile(); | |
462 | ||
463 | fOutFile->cd(); | |
464 | char hname[30]; | |
465 | sprintf(hname,"TreeR%d", fEvent); | |
466 | TTree* treeJ = new TTree(hname, "EMCALJets"); | |
467 | treeJ->Branch("EMCALJets", &fJets, kBufferSize); | |
468 | treeJ->Fill(); | |
469 | treeJ->Write(hname); | |
470 | fInFile->cd(); | |
471 | } | |
471f69dc | 472 | ResetJets(); |
473 | } | |
474 | ||
475 | void AliEMCALJetFinder::BookLego() | |
476 | { | |
477 | // | |
478 | // Book histo for discretisation | |
479 | // | |
be9787fe | 480 | |
610f27c9 | 481 | // |
482 | // Don't add histos to the current directory | |
483 | TH2::AddDirectory(0); | |
471f69dc | 484 | // |
46955412 | 485 | // Signal map |
471f69dc | 486 | fLego = new TH2F("legoH","eta-phi", |
be9787fe | 487 | fNbinEta, fEtaMin, fEtaMax, |
488 | fNbinPhi, fPhiMin, fPhiMax); | |
46955412 | 489 | // |
490 | // Background map | |
491 | fLegoB = new TH2F("legoB","eta-phi", | |
be9787fe | 492 | fNbinEta, fEtaMin, fEtaMax, |
493 | fNbinPhi, fPhiMin, fPhiMax); | |
610f27c9 | 494 | |
471f69dc | 495 | } |
496 | ||
497 | void AliEMCALJetFinder::DumpLego() | |
498 | { | |
499 | // | |
500 | // Dump lego histo into array | |
501 | // | |
502 | fNcell = 0; | |
b7a73953 | 503 | TAxis* Xaxis = fLego->GetXaxis(); |
504 | TAxis* Yaxis = fLego->GetYaxis(); | |
471f69dc | 505 | for (Int_t i = 1; i < fNbinEta; i++) { |
506 | for (Int_t j = 1; j < fNbinPhi; j++) { | |
507 | Float_t e = fLego->GetBinContent(i,j); | |
46955412 | 508 | if (e <=0.) continue; |
509 | ||
471f69dc | 510 | Float_t eta = Xaxis->GetBinCenter(i); |
511 | Float_t phi = Yaxis->GetBinCenter(j); | |
512 | fEtCell[fNcell] = e; | |
513 | fEtaCell[fNcell] = eta; | |
514 | fPhiCell[fNcell] = phi; | |
515 | fNcell++; | |
516 | } // phi | |
517 | } // eta | |
518 | fNcell--; | |
519 | } | |
520 | ||
521 | void AliEMCALJetFinder::ResetMap() | |
522 | { | |
523 | // | |
524 | // Reset eta-phi array | |
525 | ||
526 | for (Int_t i=0; i<30000; i++) | |
527 | { | |
528 | fEtCell[i] = 0.; | |
529 | fEtaCell[i] = 0.; | |
530 | fPhiCell[i] = 0.; | |
531 | } | |
532 | } | |
533 | ||
534 | ||
535 | void AliEMCALJetFinder::FillFromTracks(Int_t flag, Int_t ich) | |
536 | { | |
537 | // | |
d594b22e | 538 | // Fill Cells with track information |
471f69dc | 539 | // |
b7a73953 | 540 | if (fDebug >= 2) |
541 | printf("\n AliEMCALJetFinder::FillFromTracks(%i,%i) ",flag,ich); | |
542 | ||
471f69dc | 543 | ResetMap(); |
544 | ||
545 | if (!fLego) BookLego(); | |
546 | // Reset | |
547 | if (flag == 0) fLego->Reset(); | |
548 | // | |
549 | // Access particle information | |
550 | Int_t npart = (gAlice->GetHeader())->GetNprimary(); | |
b7a73953 | 551 | if (fDebug >= 2 || npart<=0) printf(" : npart %i\n", npart); |
552 | ||
3bc109a9 | 553 | // Create track list |
554 | // | |
555 | // 0: not selected | |
556 | // 1: selected for jet finding | |
557 | // 2: inside jet | |
558 | // .... | |
559 | if (fTrackList) delete[] fTrackList; | |
560 | if (fPtT) delete[] fPtT; | |
561 | if (fEtaT) delete[] fEtaT; | |
562 | if (fPhiT) delete[] fPhiT; | |
563 | ||
564 | fTrackList = new Int_t [npart]; | |
565 | fPtT = new Float_t[npart]; | |
566 | fEtaT = new Float_t[npart]; | |
567 | fPhiT = new Float_t[npart]; | |
ff114de3 | 568 | |
3bc109a9 | 569 | fNt = npart; |
ff114de3 | 570 | fNtS = 0; |
b7a73953 | 571 | Float_t chTmp=0.0; // charge of current particle |
ff114de3 | 572 | |
d594b22e | 573 | for (Int_t part = 2; part < npart; part++) { |
471f69dc | 574 | TParticle *MPart = gAlice->Particle(part); |
575 | Int_t mpart = MPart->GetPdgCode(); | |
576 | Int_t child1 = MPart->GetFirstDaughter(); | |
577 | Float_t pT = MPart->Pt(); | |
d594b22e | 578 | Float_t p = MPart->P(); |
471f69dc | 579 | Float_t phi = MPart->Phi(); |
3bc109a9 | 580 | Float_t eta = MPart->Eta(); |
b7a73953 | 581 | Float_t theta = MPart->Theta(); |
46955412 | 582 | |
b7a73953 | 583 | if (fDebug > 1) { |
d594b22e | 584 | if (part == 6 || part == 7) |
585 | { | |
610f27c9 | 586 | printf("\n Simulated Jet (pt, eta, phi): %d %f %f %f\n", |
d594b22e | 587 | part-5, pT, eta, phi); |
588 | } | |
589 | ||
590 | // if (mpart == 21) | |
591 | ||
592 | // printf("\n Simulated Jet (pt, eta, phi): %d %d %f %f %f", | |
593 | // part, mpart, pT, eta, phi); | |
594 | } | |
595 | ||
3bc109a9 | 596 | |
b7a73953 | 597 | fTrackList[part] = 0; |
598 | fPtT[part] = pT; // must be change after correction for resolution !!! | |
3bc109a9 | 599 | fEtaT[part] = eta; |
600 | fPhiT[part] = phi; | |
601 | ||
602 | if (part < 2) continue; | |
b7a73953 | 603 | |
604 | // move to fLego->Fill because hadron correction must apply | |
605 | // if particle hit to EMCAL - 11-feb-2002 | |
606 | // if (pT == 0 || pT < fPtCut) continue; | |
26dadf3a | 607 | TParticlePDG* pdgP = 0; |
471f69dc | 608 | // charged or neutral |
b7a73953 | 609 | pdgP = MPart->GetPDG(); |
610 | chTmp = pdgP->Charge() / 3.; // 13-feb-2001!! | |
471f69dc | 611 | if (ich == 0) { |
b7a73953 | 612 | if (chTmp == 0) { |
613 | if (!fK0N) { | |
d53b7b0b | 614 | continue; |
615 | } else { | |
616 | if (mpart != kNeutron && | |
617 | mpart != kNeutronBar && | |
618 | mpart != kK0Long) continue; | |
619 | } | |
620 | } | |
b7a73953 | 621 | } |
471f69dc | 622 | // skip partons |
623 | if (TMath::Abs(mpart) <= 6 || | |
624 | mpart == 21 || | |
625 | mpart == 92) continue; | |
626 | // acceptance cut | |
627 | if (TMath::Abs(eta) > 0.7) continue; | |
b7a73953 | 628 | // Initial phi may be out of acceptance but track may |
629 | // hit two the acceptance - see variable curls | |
630 | // if (phi*180./TMath::Pi() > 120.) continue; | |
471f69dc | 631 | // final state only |
632 | if (child1 >= 0 && child1 < npart) continue; | |
d594b22e | 633 | // |
634 | if (fDebug > 1) | |
b7a73953 | 635 | printf("\n=>nsel:%5d mpart %5d child1 %5d eta %6.2f phi %6.2f pT %6.2f ch %3.0f ", |
636 | part, mpart, child1, eta, phi, pT, chTmp); | |
26dadf3a | 637 | // |
26dadf3a | 638 | // |
d594b22e | 639 | // Momentum smearing goes here ... |
640 | // | |
b7a73953 | 641 | Float_t pw; |
642 | if (fSmear && TMath::Abs(chTmp)) { | |
643 | pw = AliEMCALFast::SmearMomentum(1,p); | |
644 | // p changed - take into account when calculate pT, | |
645 | // pz and so on .. ? | |
646 | pT = (pw/p) * pT; | |
647 | if(fDebug > 1) printf("\n Smearing : p %8.4f change to %8.4f ", p, pw); | |
648 | p = pw; | |
d594b22e | 649 | } |
650 | // | |
651 | // Tracking Efficiency and TPC acceptance goes here ... | |
b7a73953 | 652 | if (fEffic && TMath::Abs(chTmp)) { |
d594b22e | 653 | Float_t eff = AliEMCALFast::Efficiency(1,p); |
b7a73953 | 654 | if (AliEMCALFast::RandomReject(eff)) { |
655 | if(fDebug > 1) printf(" reject due to unefficiency "); | |
656 | continue; | |
657 | } | |
d594b22e | 658 | } |
659 | // | |
660 | // Correction of Hadronic Energy goes here ... | |
661 | // | |
b7a73953 | 662 | // |
663 | // phi propagation for hadronic correction | |
664 | ||
665 | Bool_t curls = kFALSE; // hit two the EMCAL (no curl) | |
666 | Float_t phiHC=0.0, dpH=0.0, dphi=0.0; | |
667 | if(TMath::Abs(chTmp)) { | |
668 | // hadr. correction only for charge particle | |
669 | dphi = PropagatePhi(pT, chTmp, curls); | |
670 | phiHC = phi + dphi; | |
671 | if (fDebug >= 2) { | |
672 | printf("\n Delta phi %f pT %f ", dphi, pT); | |
673 | if (curls) printf("\n !! Track is curling"); | |
674 | } | |
ff114de3 | 675 | |
b7a73953 | 676 | if (fHCorrection && !curls) { |
677 | if (!fHadronCorrector) | |
678 | Fatal("AliEMCALJetFinder", | |
d594b22e | 679 | "Hadronic energy correction required but not defined !"); |
b7a73953 | 680 | |
681 | dpH = fHadronCorrector->GetEnergy(p, eta, 7); | |
682 | ||
683 | if (fDebug >= 2) printf(" phi %f phiHC %f eTcorr %f\n", | |
684 | phi, phiHC, -dpH*TMath::Sin(theta)); | |
685 | fLego->Fill(eta, phiHC, -dpH*TMath::Sin(theta)); | |
686 | } | |
687 | } | |
d594b22e | 688 | // |
689 | // More to do ? Just think about it ! | |
690 | // | |
b7a73953 | 691 | |
692 | if (phi*180./TMath::Pi() > 120.) continue; | |
693 | ||
694 | if(TMath::Abs(chTmp) ) { // charge particle | |
695 | if (pT > fPtCut && !curls) { | |
696 | if (fDebug >= 2) printf("Charge : fLego->Fill(%5.2f, %5.2f, %6.2f)\n", | |
697 | eta , phi, pT); | |
698 | fLego->Fill(eta, phi, pT); | |
699 | fTrackList[part] = 1; | |
700 | fNtS++; | |
701 | } | |
702 | } else if(ich == 0) { | |
703 | // case of n, nbar and K0L | |
704 | if (fDebug >= 2) printf("Neutral : fLego->Fill(%5.2f, %5.2f, %6.2f)\n", | |
705 | eta , phi, pT); | |
706 | fLego->Fill(eta, phi, pT); | |
707 | fTrackList[part] = 1; | |
708 | fNtS++; | |
709 | } | |
710 | ||
471f69dc | 711 | } // primary loop |
712 | DumpLego(); | |
713 | } | |
714 | ||
715 | void AliEMCALJetFinder::FillFromHits(Int_t flag) | |
716 | { | |
717 | // | |
d594b22e | 718 | // Fill Cells with hit information |
471f69dc | 719 | // |
720 | // | |
b7a73953 | 721 | if (fDebug >= 2) |
722 | printf("\n AliEMCALJetFinder::FillFromHits(%i)\n",flag); | |
723 | ||
471f69dc | 724 | ResetMap(); |
725 | ||
726 | if (!fLego) BookLego(); | |
ff114de3 | 727 | // Reset eta-phi map if needed |
728 | if (flag == 0) fLego->Reset(); | |
729 | // Initialize from background event if available | |
471f69dc | 730 | // |
731 | // Access hit information | |
732 | AliEMCAL* pEMCAL = (AliEMCAL*) gAlice->GetModule("EMCAL"); | |
471f69dc | 733 | |
734 | TTree *treeH = gAlice->TreeH(); | |
735 | Int_t ntracks = (Int_t) treeH->GetEntries(); | |
736 | // | |
737 | // Loop over tracks | |
738 | // | |
739 | Int_t nbytes = 0; | |
740 | ||
741 | ||
742 | for (Int_t track=0; track<ntracks;track++) { | |
743 | gAlice->ResetHits(); | |
744 | nbytes += treeH->GetEvent(track); | |
745 | // | |
746 | // Loop over hits | |
747 | // | |
748 | for(AliEMCALHit* mHit=(AliEMCALHit*) pEMCAL->FirstHit(-1); | |
749 | mHit; | |
750 | mHit=(AliEMCALHit*) pEMCAL->NextHit()) | |
751 | { | |
752 | Float_t x = mHit->X(); // x-pos of hit | |
753 | Float_t y = mHit->Y(); // y-pos | |
754 | Float_t z = mHit->Z(); // z-pos | |
755 | Float_t eloss = mHit->GetEnergy(); // deposited energy | |
d594b22e | 756 | |
757 | Float_t r = TMath::Sqrt(x*x+y*y); | |
758 | Float_t theta = TMath::ATan2(r,z); | |
759 | Float_t eta = -TMath::Log(TMath::Tan(theta/2.)); | |
760 | Float_t phi = TMath::ATan2(y,x); | |
610f27c9 | 761 | |
b7a73953 | 762 | if (fDebug >= 11) printf("\n Hit %f %f %f %f", x, y, z, eloss); |
610f27c9 | 763 | |
f719d9b7 | 764 | fLego->Fill(eta, phi, fSamplingF*eloss*TMath::Sin(theta)); |
471f69dc | 765 | } // Hit Loop |
766 | } // Track Loop | |
767 | DumpLego(); | |
768 | } | |
769 | ||
d594b22e | 770 | void AliEMCALJetFinder::FillFromDigits(Int_t flag) |
771 | { | |
772 | // | |
773 | // Fill Cells with digit information | |
774 | // | |
775 | // | |
776 | ResetMap(); | |
777 | ||
778 | if (!fLego) BookLego(); | |
779 | if (flag == 0) fLego->Reset(); | |
780 | Int_t nbytes; | |
781 | ||
782 | ||
783 | // | |
784 | // Connect digits | |
785 | // | |
786 | TClonesArray* digs = new TClonesArray("AliEMCALDigit", 10000); | |
787 | TTree *treeD = gAlice->TreeD(); | |
788 | TBranchElement* branchDg = (TBranchElement*) | |
789 | treeD->GetBranch("EMCAL"); | |
790 | ||
791 | if (!branchDg) Fatal("AliEMCALJetFinder", | |
792 | "Reading digits requested but no digits in file !"); | |
793 | ||
794 | branchDg->SetAddress(&digs); | |
795 | Int_t nent = (Int_t) branchDg->GetEntries(); | |
796 | // | |
797 | // Connect digitizer | |
798 | // | |
799 | AliEMCALDigitizer* digr = new AliEMCALDigitizer(); | |
800 | TBranchElement* branchDr = (TBranchElement*) | |
801 | treeD->GetBranch("AliEMCALDigitizer"); | |
802 | branchDr->SetAddress(&digr); | |
803 | // | |
804 | // | |
805 | nbytes += branchDg->GetEntry(0); | |
806 | nbytes += branchDr->GetEntry(0); | |
807 | // | |
808 | // Get digitizer parameters | |
809 | Float_t towerADCped = digr->GetTowerpedestal(); | |
810 | Float_t towerADCcha = digr->GetTowerchannel(); | |
811 | Float_t preshoADCped = digr->GetPreShopedestal(); | |
812 | Float_t preshoADCcha = digr->GetPreShochannel(); | |
813 | ||
814 | AliEMCAL* pEMCAL = (AliEMCAL*) gAlice->GetModule("EMCAL"); | |
815 | AliEMCALGeometry* geom = | |
816 | AliEMCALGeometry::GetInstance(pEMCAL->GetTitle(), ""); | |
817 | ||
818 | if (fDebug) { | |
819 | Int_t ndig = digs->GetEntries(); | |
820 | printf("\n Number of Digits: %d %d\n", ndig, nent); | |
821 | printf("\n Parameters: %f %f %f %f\n", | |
822 | towerADCped, towerADCcha, preshoADCped, preshoADCcha ); | |
823 | printf("\n Geometry: %d %d\n", geom->GetNEta(), geom->GetNPhi()); | |
824 | } | |
825 | ||
826 | // | |
827 | // Loop over digits | |
828 | AliEMCALDigit* sdg; | |
829 | TIter next(digs); | |
830 | while ((sdg = (AliEMCALDigit*)(next()))) | |
831 | { | |
832 | Double_t pedestal; | |
833 | Double_t channel; | |
834 | if (sdg->GetId() > (geom->GetNZ() * geom->GetNPhi())) | |
835 | { | |
836 | pedestal = preshoADCped; | |
837 | channel = preshoADCcha; | |
838 | } else { | |
839 | pedestal = towerADCped; | |
840 | channel = towerADCcha; | |
841 | } | |
842 | ||
843 | Float_t eta = sdg->GetEta(); | |
844 | Float_t phi = sdg->GetPhi() * TMath::Pi()/180.; | |
845 | Float_t amp = (Float_t) (channel*(sdg->GetAmp())-pedestal); | |
846 | ||
847 | if (fDebug > 1) printf("\n Digit: eta %8.3f phi %8.3f amp %8.3f %8d", | |
848 | eta, phi, amp, sdg->GetAmp()); | |
849 | ||
850 | fLego->Fill(eta, phi, fSamplingF*amp); | |
851 | } // digit loop | |
852 | // | |
853 | // Dump lego hist | |
854 | DumpLego(); | |
855 | } | |
856 | ||
857 | ||
858 | void AliEMCALJetFinder::FillFromHitFlaggedTracks(Int_t flag) | |
859 | { | |
860 | // | |
861 | // Fill Cells with hit information | |
862 | // | |
863 | // | |
864 | ResetMap(); | |
865 | ||
866 | if (!fLego) BookLego(); | |
867 | // Reset | |
868 | if (flag == 0) fLego->Reset(); | |
869 | ||
ff114de3 | 870 | // Flag charged tracks passing through TPC which |
871 | // are associated to EMCAL Hits | |
d594b22e | 872 | BuildTrackFlagTable(); |
873 | ||
874 | // | |
875 | // Access particle information | |
876 | TTree *treeH = gAlice->TreeH(); | |
877 | Int_t ntracks = (Int_t) treeH->GetEntries(); | |
878 | ||
ff114de3 | 879 | if (fPtT) delete[] fPtT; |
880 | if (fEtaT) delete[] fEtaT; | |
881 | if (fPhiT) delete[] fPhiT; | |
882 | ||
d594b22e | 883 | fPtT = new Float_t[ntracks]; |
884 | fEtaT = new Float_t[ntracks]; | |
885 | fPhiT = new Float_t[ntracks]; | |
d594b22e | 886 | |
ff114de3 | 887 | fNt = ntracks; |
888 | fNtS = 0; | |
889 | ||
d594b22e | 890 | for (Int_t track = 0; track < ntracks; track++) { |
891 | TParticle *MPart = gAlice->Particle(track); | |
892 | Float_t pT = MPart->Pt(); | |
893 | Float_t phi = MPart->Phi(); | |
894 | Float_t eta = MPart->Eta(); | |
895 | ||
896 | if(fTrackList[track]) { | |
897 | fPtT[track] = pT; | |
898 | fEtaT[track] = eta; | |
899 | fPhiT[track] = phi; | |
900 | ||
901 | if (track < 2) continue; //Colliding particles? | |
902 | if (pT == 0 || pT < fPtCut) continue; | |
ff114de3 | 903 | fNtS++; |
d594b22e | 904 | fLego->Fill(eta, phi, pT); |
905 | } | |
906 | } // track loop | |
907 | DumpLego(); | |
908 | } | |
909 | ||
b7a73953 | 910 | void AliEMCALJetFinder::FillFromPartons() |
911 | { | |
912 | // function under construction - 13-feb-2002 PAI | |
913 | ||
914 | if (fDebug >= 2) | |
915 | printf("\n AliEMCALJetFinder::FillFromPartons()\n"); | |
916 | // | |
917 | ||
918 | ResetMap(); | |
919 | if (!fLego) BookLego(); | |
920 | fLego->Reset(); | |
921 | // | |
922 | // Access particle information | |
923 | Int_t npart = (gAlice->GetHeader())->GetNprimary(); | |
924 | if (fDebug >= 2 || npart<=0) | |
925 | printf("\n AliEMCALJetFinder::FillFromPartons : npart %i\n", npart); | |
926 | fNt = 0; // for FindTracksInJetCone | |
927 | fNtS = 0; | |
928 | ||
929 | // Go through the partons | |
930 | Int_t statusCode=0; | |
931 | for (Int_t part = 8; part < npart; part++) { | |
932 | TParticle *MPart = gAlice->Particle(part); | |
933 | Int_t mpart = MPart->GetPdgCode(); | |
934 | // Int_t child1 = MPart->GetFirstDaughter(); | |
935 | Float_t pT = MPart->Pt(); | |
936 | // Float_t p = MPart->P(); | |
937 | Float_t phi = MPart->Phi(); | |
938 | Float_t eta = MPart->Eta(); | |
939 | // Float_t theta = MPart->Theta(); | |
940 | statusCode = MPart->GetStatusCode(); | |
941 | ||
942 | // accept partons (21 - gluon, 92 - string) | |
943 | if (!(TMath::Abs(mpart) <= 6 || mpart == 21 ||mpart == 92)) continue; | |
944 | if (fDebug > 1 && pT>0.01) | |
945 | printf("\n part:%5d mpart %5d status %5d eta %8.2f phi %8.2f pT %8.2f ", | |
946 | part, mpart, statusCode, eta, phi, pT); | |
947 | // if (fDebug >= 3) MPart->Print(); | |
948 | // accept partons before fragmentation - p.57 in Pythia manual | |
949 | // if(statusCode != 1) continue; | |
950 | // acceptance cut | |
951 | if (TMath::Abs(eta) > 0.7) continue; | |
952 | if (phi*180./TMath::Pi() > 120.) continue; | |
953 | // final state only | |
954 | // if (child1 >= 0 && child1 < npart) continue; | |
955 | // | |
956 | // | |
957 | fLego->Fill(eta, phi, pT); | |
958 | ||
959 | } // primary loop | |
960 | DumpLego(); | |
961 | } | |
962 | ||
d594b22e | 963 | void AliEMCALJetFinder::BuildTrackFlagTable() { |
964 | ||
965 | // Method to generate a lookup table for TreeK particles | |
966 | // which are linked to hits in the EMCAL | |
967 | // | |
968 | // --Author: J.L. Klay | |
969 | // | |
d594b22e | 970 | // Access hit information |
971 | AliEMCAL* pEMCAL = (AliEMCAL*) gAlice->GetModule("EMCAL"); | |
972 | ||
973 | TTree *TK = gAlice->TreeK(); // Get the number of entries in the kine tree | |
974 | Int_t nKTrks = (Int_t) TK->GetEntries(); // (Number of particles created somewhere) | |
975 | ||
976 | if(fTrackList) delete[] fTrackList; //Make sure we get rid of the old one | |
977 | fTrackList = new Int_t[nKTrks]; //before generating a new one | |
978 | ||
979 | for (Int_t i = 0; i < nKTrks; i++) { //Initialize members to 0 | |
980 | fTrackList[i] = 0; | |
981 | } | |
982 | ||
983 | TTree *treeH = gAlice->TreeH(); | |
984 | Int_t ntracks = (Int_t) treeH->GetEntries(); | |
985 | // | |
986 | // Loop over tracks | |
987 | // | |
988 | Int_t nbytes = 0; | |
989 | ||
990 | for (Int_t track=0; track<ntracks;track++) { | |
991 | gAlice->ResetHits(); | |
992 | nbytes += treeH->GetEvent(track); | |
993 | if (pEMCAL) { | |
994 | ||
995 | // | |
996 | // Loop over hits | |
997 | // | |
998 | for(AliEMCALHit* mHit=(AliEMCALHit*) pEMCAL->FirstHit(-1); | |
999 | mHit; | |
1000 | mHit=(AliEMCALHit*) pEMCAL->NextHit()) | |
1001 | { | |
1002 | Int_t iTrk = mHit->Track(); // track number | |
1003 | Int_t idprim = mHit->GetPrimary(); // primary particle | |
1004 | ||
1005 | //Determine the origin point of this particle - it made a hit in the EMCAL | |
1006 | TParticle *trkPart = gAlice->Particle(iTrk); | |
1007 | TParticlePDG *trkPdg = trkPart->GetPDG(); | |
1008 | Int_t trkCode = trkPart->GetPdgCode(); | |
1009 | Double_t trkChg; | |
1010 | if (trkCode < 10000) { //Big Ions cause problems for | |
1011 | trkChg = trkPdg->Charge(); //this function. Since they aren't | |
1012 | } else { //likely to make it very far, set | |
1013 | trkChg = 0.0; //their charge to 0 for the Flag test | |
1014 | } | |
1015 | Float_t vxTrk = trkPart->Vx(); | |
1016 | Float_t vyTrk = trkPart->Vy(); | |
1017 | Float_t vrTrk = TMath::Sqrt(vxTrk*vxTrk+vyTrk*vyTrk); | |
1018 | fTrackList[iTrk] = SetTrackFlag(vrTrk,trkCode,trkChg); | |
1019 | ||
1020 | //Loop through the ancestry of the EMCAL entrance particles | |
1021 | Int_t ancestor = trkPart->GetFirstMother(); //Get track's Mother | |
1022 | while (ancestor != -1) { | |
1023 | TParticle *ancPart = gAlice->Particle(ancestor); //get particle info on ancestor | |
1024 | TParticlePDG *ancPdg = ancPart->GetPDG(); | |
1025 | Int_t ancCode = ancPart->GetPdgCode(); | |
1026 | Double_t ancChg; | |
1027 | if (ancCode < 10000) { | |
1028 | ancChg = ancPdg->Charge(); | |
1029 | } else { | |
1030 | ancChg = 0.0; | |
1031 | } | |
1032 | Float_t vxAnc = ancPart->Vx(); | |
1033 | Float_t vyAnc = ancPart->Vy(); | |
1034 | Float_t vrAnc = TMath::Sqrt(vxAnc*vxAnc+vyAnc*vyAnc); | |
1035 | fTrackList[ancestor] = SetTrackFlag(vrAnc,ancCode,ancChg); | |
1036 | ancestor = ancPart->GetFirstMother(); //Get the next ancestor | |
1037 | } | |
1038 | ||
1039 | //Determine the origin point of the primary particle associated with the hit | |
1040 | TParticle *primPart = gAlice->Particle(idprim); | |
1041 | TParticlePDG *primPdg = primPart->GetPDG(); | |
1042 | Int_t primCode = primPart->GetPdgCode(); | |
1043 | Double_t primChg; | |
1044 | if (primCode < 10000) { | |
1045 | primChg = primPdg->Charge(); | |
1046 | } else { | |
1047 | primChg = 0.0; | |
1048 | } | |
1049 | Float_t vxPrim = primPart->Vx(); | |
1050 | Float_t vyPrim = primPart->Vy(); | |
1051 | Float_t vrPrim = TMath::Sqrt(vxPrim*vxPrim+vyPrim*vyPrim); | |
1052 | fTrackList[idprim] = SetTrackFlag(vrPrim,primCode,primChg); | |
1053 | } // Hit Loop | |
1054 | } //if (pEMCAL) | |
1055 | } // Track Loop | |
1056 | } | |
1057 | ||
1058 | Int_t AliEMCALJetFinder | |
1059 | ::SetTrackFlag(Float_t radius, Int_t code, Double_t charge) { | |
1060 | ||
ff114de3 | 1061 | Int_t flag = 0; |
1062 | Int_t parton = 0; | |
d594b22e | 1063 | Int_t neutral = 0; |
1064 | ||
1065 | if (charge == 0) neutral = 1; | |
1066 | ||
1067 | if (TMath::Abs(code) <= 6 || | |
1068 | code == 21 || | |
1069 | code == 92) parton = 1; | |
1070 | ||
1071 | //It's not a parton, it's charged and it went through the TPC | |
1072 | if (!parton && !neutral && radius <= 84.0) flag = 1; | |
1073 | ||
1074 | return flag; | |
1075 | } | |
1076 | ||
ff114de3 | 1077 | |
1078 | ||
1079 | void AliEMCALJetFinder::SaveBackgroundEvent() | |
1080 | { | |
1081 | // Saves the eta-phi lego and the tracklist | |
1082 | // | |
46955412 | 1083 | if (fLegoB) fLegoB->Reset(); |
ff114de3 | 1084 | |
46955412 | 1085 | fLego->Copy(*fLegoB); |
ff114de3 | 1086 | |
1087 | if (fPtB) delete[] fPtB; | |
1088 | if (fEtaB) delete[] fEtaB; | |
1089 | if (fPhiB) delete[] fPhiB; | |
1090 | if (fTrackListB) delete[] fTrackListB; | |
1091 | ||
1092 | fPtB = new Float_t[fNtS]; | |
1093 | fEtaB = new Float_t[fNtS]; | |
1094 | fPhiB = new Float_t[fNtS]; | |
1095 | fTrackListB = new Int_t [fNtS]; | |
46955412 | 1096 | |
1097 | fNtB = 0; | |
1098 | ||
ff114de3 | 1099 | for (Int_t i = 0; i < fNt; i++) { |
1100 | if (!fTrackList[i]) continue; | |
610f27c9 | 1101 | fPtB [fNtB] = fPtT [i]; |
1102 | fEtaB[fNtB] = fEtaT[i]; | |
1103 | fPhiB[fNtB] = fPhiT[i]; | |
46955412 | 1104 | fTrackListB[fNtB] = 1; |
ff114de3 | 1105 | fNtB++; |
1106 | } | |
610f27c9 | 1107 | fBackground = 1; |
ff114de3 | 1108 | } |
1109 | ||
1110 | void AliEMCALJetFinder::InitFromBackground() | |
1111 | { | |
1112 | // | |
1113 | // | |
46955412 | 1114 | if (fDebug) printf("\n Initializing from Background"); |
1115 | ||
1116 | if (fLego) fLego->Reset(); | |
1117 | fLegoB->Copy(*fLego); | |
ff114de3 | 1118 | } |
1119 | ||
ff114de3 | 1120 | |
3bc109a9 | 1121 | void AliEMCALJetFinder::FindTracksInJetCone() |
1122 | { | |
1123 | // | |
1124 | // Build list of tracks inside jet cone | |
1125 | // | |
1126 | // Loop over jets | |
1127 | Int_t njet = Njets(); | |
1128 | for (Int_t nj = 0; nj < njet; nj++) | |
1129 | { | |
1130 | Float_t etaj = JetEtaW(nj); | |
1131 | Float_t phij = JetPhiW(nj); | |
1132 | Int_t nT = 0; // number of associated tracks | |
1133 | ||
ff114de3 | 1134 | // Loop over particles in current event |
3bc109a9 | 1135 | for (Int_t part = 0; part < fNt; part++) { |
1136 | if (!fTrackList[part]) continue; | |
1137 | Float_t phi = fPhiT[part]; | |
1138 | Float_t eta = fEtaT[part]; | |
1139 | Float_t dr = TMath::Sqrt((etaj-eta)*(etaj-eta) + | |
1140 | (phij-phi)*(phij-phi)); | |
1141 | if (dr < fConeRadius) { | |
1142 | fTrackList[part] = nj+2; | |
1143 | nT++; | |
1144 | } // < ConeRadius ? | |
1145 | } // particle loop | |
d594b22e | 1146 | |
ff114de3 | 1147 | // Same for background event if available |
1148 | Int_t nTB = 0; | |
1149 | if (fBackground) { | |
1150 | for (Int_t part = 0; part < fNtB; part++) { | |
1151 | Float_t phi = fPhiB[part]; | |
1152 | Float_t eta = fEtaB[part]; | |
1153 | Float_t dr = TMath::Sqrt((etaj-eta)*(etaj-eta) + | |
1154 | (phij-phi)*(phij-phi)); | |
610f27c9 | 1155 | fTrackListB[part] = 1; |
1156 | ||
ff114de3 | 1157 | if (dr < fConeRadius) { |
610f27c9 | 1158 | fTrackListB[part] = nj+2; |
ff114de3 | 1159 | nTB++; |
1160 | } // < ConeRadius ? | |
1161 | } // particle loop | |
1162 | } // Background available ? | |
1163 | ||
1164 | Int_t nT0 = nT + nTB; | |
1165 | ||
1166 | if (nT0 > 50) nT0 = 50; | |
d594b22e | 1167 | |
610f27c9 | 1168 | Float_t* ptT = new Float_t[nT0]; |
1169 | Float_t* etaT = new Float_t[nT0]; | |
1170 | Float_t* phiT = new Float_t[nT0]; | |
d594b22e | 1171 | Int_t iT = 0; |
1172 | Int_t j; | |
1173 | ||
3bc109a9 | 1174 | for (Int_t part = 0; part < fNt; part++) { |
1175 | if (fTrackList[part] == nj+2) { | |
d594b22e | 1176 | Int_t index = 0; |
1177 | for (j=iT-1; j>=0; j--) { | |
1178 | if (fPtT[part] > ptT[j]) { | |
1179 | index = j+1; | |
1180 | break; | |
1181 | } | |
1182 | } | |
1183 | for (j=iT-1; j>=index; j--) { | |
1184 | ptT [j+1] = ptT [j]; | |
1185 | etaT[j+1] = etaT[j]; | |
1186 | phiT[j+1] = phiT[j]; | |
1187 | } | |
1188 | ptT [index] = fPtT [part]; | |
1189 | etaT[index] = fEtaT[part]; | |
1190 | phiT[index] = fPhiT[part]; | |
ff114de3 | 1191 | iT++; |
3bc109a9 | 1192 | } // particle associated |
ff114de3 | 1193 | if (iT > nT0) break; |
3bc109a9 | 1194 | } // particle loop |
d594b22e | 1195 | |
ff114de3 | 1196 | if (fBackground) { |
1197 | for (Int_t part = 0; part < fNtB; part++) { | |
610f27c9 | 1198 | if (fTrackListB[part] == nj+2) { |
ff114de3 | 1199 | Int_t index = 0; |
1200 | for (j=iT-1; j>=0; j--) { | |
1201 | if (fPtB[part] > ptT[j]) { | |
1202 | index = j+1; | |
610f27c9 | 1203 | |
ff114de3 | 1204 | break; |
1205 | } | |
1206 | } | |
1207 | for (j=iT-1; j>=index; j--) { | |
1208 | ptT [j+1] = ptT [j]; | |
1209 | etaT[j+1] = etaT[j]; | |
1210 | phiT[j+1] = phiT[j]; | |
1211 | } | |
1212 | ptT [index] = fPtB [part]; | |
1213 | etaT[index] = fEtaB[part]; | |
1214 | phiT[index] = fPhiB[part]; | |
1215 | iT++; | |
1216 | } // particle associated | |
1217 | if (iT > nT0) break; | |
1218 | } // particle loop | |
1219 | } // Background available ? | |
1220 | ||
610f27c9 | 1221 | fJetT[nj]->SetTrackList(nT0, ptT, etaT, phiT); |
3bc109a9 | 1222 | delete[] ptT; |
1223 | delete[] etaT; | |
1224 | delete[] phiT; | |
1225 | } // jet loop loop | |
1226 | } | |
1227 | ||
26dadf3a | 1228 | Float_t AliEMCALJetFinder::PropagatePhi(Float_t pt, Float_t charge, Bool_t& curls) |
1229 | { | |
1230 | // Propagates phi angle to EMCAL radius | |
1231 | // | |
b7a73953 | 1232 | static Float_t b = 0.0, rEMCAL = -1.0; |
1233 | if(rEMCAL<0) { | |
1234 | // Get field in kGS | |
1235 | b = ((AliMagFCM*) gAlice->Field())->SolenoidField(); | |
1236 | // Get EMCAL radius in cm | |
1237 | rEMCAL = AliEMCALGeometry::GetInstance()->GetIPDistance(); | |
1238 | printf("\nMagnetic field %f rEMCAL %f ", b, rEMCAL); | |
1239 | } | |
26dadf3a | 1240 | Float_t dPhi = 0.; |
26dadf3a | 1241 | // |
1242 | // | |
1243 | // bending radies | |
db5026bf | 1244 | // pt [Gev] |
1245 | // B [kG] | |
1246 | // | |
b7a73953 | 1247 | Float_t rB = 3335.6 * pt / b; // [cm] (case of |charge|=1) |
26dadf3a | 1248 | // |
1249 | // check if particle is curling below EMCAL | |
1250 | if (2.*rB < rEMCAL) { | |
1251 | curls = kTRUE; | |
1252 | return dPhi; | |
1253 | } | |
1254 | // | |
1255 | // if not calculate delta phi | |
1256 | Float_t phi = TMath::ACos(1.-rEMCAL*rEMCAL/(2.*rB*rB)); | |
1257 | dPhi = TMath::ATan2(1.-TMath::Cos(phi), TMath::Sin(phi)); | |
f8f69f71 | 1258 | dPhi = -TMath::Sign(dPhi, charge); |
26dadf3a | 1259 | // |
1260 | return dPhi; | |
26dadf3a | 1261 | } |
1262 | ||
1263 | ||
471f69dc | 1264 | void hf1(Int_t& id, Float_t& x, Float_t& wgt) |
1265 | { | |
1266 | // dummy for hbook calls | |
1267 | ; | |
1268 | } | |
1269 | ||
1270 | ||
d594b22e | 1271 | |
1272 | ||
1273 | ||
1274 | ||
1275 | ||
1276 |