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f7d5860b | 1 | |
2 | //THIS Also includes summing ALL cells in the jetcone towards the jet energy NOT just those above threshold!!!!! | |
3 | ||
4 | ||
5 | /************************************************************************** | |
6 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
7 | * * | |
8 | * Author: The ALICE Off-line Project. * | |
9 | * Contributors are mentioned in the code where appropriate. * | |
10 | * * | |
11 | * Permission to use, copy, modify and distribute this software and its * | |
12 | * documentation strictly for non-commercial purposes is hereby granted * | |
13 | * without fee, provided that the above copyright notice appears in all * | |
14 | * copies and that both the copyright notice and this permission notice * | |
15 | * appear in the supporting documentation. The authors make no claims * | |
16 | * about the suitability of this software for any purpose. It is * | |
17 | * provided "as is" without express or implied warranty. * | |
18 | **************************************************************************/ | |
19 | ||
5933ca61 | 20 | /* |
21 | ||
22 | $Log$ | |
4537683c | 23 | Revision 1.13 2004/03/26 01:00:38 mhorner |
24 | Implementing Marco's optimisations | |
25 | ||
5bf42aa6 | 26 | Revision 1.12 2004/03/15 19:59:37 mhorner |
27 | Pyhtia comparison extended | |
28 | ||
e64765ad | 29 | Revision 1.11 2004/03/09 17:06:38 mhorner |
30 | Made more robust | |
31 | ||
e5ba9847 | 32 | Revision 1.10 2004/03/06 01:56:09 mhorner |
33 | Pythai comp code | |
34 | ||
03149ca8 | 35 | Revision 1.9 2004/02/23 20:37:32 mhorner |
36 | changed geometry call | |
37 | ||
1c4c368e | 38 | Revision 1.8 2004/01/29 23:28:44 mhorner |
39 | Jet Finder - hard coded geom parameters removed | |
40 | ||
c21d4f1a | 41 | Revision 1.7 2004/01/21 22:27:47 mhorner |
42 | Cleaning up coding conventions | |
43 | ||
44f59d68 | 44 | Revision 1.6 2003/10/28 13:54:30 schutz |
45 | Compilation warnings fixed | |
46 | ||
9e5d2067 | 47 | Revision 1.5 2003/09/23 13:31:41 mhorner |
48 | Changed coordinate system | |
49 | ||
956a522c | 50 | Revision 1.4 2003/09/19 13:16:20 mhorner |
51 | Added additional jet energy info | |
52 | ||
5933ca61 | 53 | |
9e7e46ab | 54 | Revision 1.3 2003/09/04 12:49:56 mhorner |
55 | Changed hadron correction and added saving EMCAL and track contributions | |
5933ca61 | 56 | |
57 | */ | |
58 | ||
f7d5860b | 59 | |
60 | //*--Author: Sarah Blyth (LBL) | |
61 | //*--Based on UA1 jet algorithm from LUND JETSET called from EMC-erj | |
62 | ||
63 | #include "TTask.h" | |
64 | #include "AliEMCALJetFinderInput.h" | |
65 | #include "AliEMCALJetFinderOutput.h" | |
66 | #include "AliEMCALJetFinderAlgo.h" | |
67 | #include "AliEMCALJetFinderAlgoOmni.h" | |
68 | #include "AliEMCALJetFinderAlgoUA1Unit.h" | |
c21d4f1a | 69 | #include "AliEMCALGetter.h" |
f7d5860b | 70 | #include "AliEMCALGeometry.h" |
71 | #include "AliEMCAL.h" | |
f7d5860b | 72 | #include "AliEMCALDigit.h" |
73 | #include "TParticle.h" | |
74 | #include "AliRun.h" | |
75 | #include "AliEMCALJet.h" | |
76 | #include "TMath.h" | |
77 | ||
78 | ||
79 | ClassImp(AliEMCALJetFinderAlgoOmni) | |
80 | ||
81 | AliEMCALJetFinderAlgoOmni::AliEMCALJetFinderAlgoOmni() | |
82 | { | |
83 | //Default constructor | |
84 | if (fDebug>0) Info("AliEMCALJetFinderAlgoOmni","Beginning Default Constructor"); | |
85 | ||
1c4c368e | 86 | // AliEMCALGetter * gime = AliEMCALGetter::Instance() ; |
87 | // AliEMCALGeometry * geom = gime->EMCALGeometry(); | |
88 | AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance("EMCAL_55_25","EMCAL"); | |
f7d5860b | 89 | fNumIter = 0; |
c21d4f1a | 90 | fNumUnits = geom->GetNTowers(); //Number of towers in EMCAL |
f7d5860b | 91 | fESeed = 5.0; //Default value |
92 | fConeRad = 0.3; //Default value | |
93 | fJetEMin = 10.0; //Default value | |
5933ca61 | 94 | fEtMin = 0.0; //Default value |
f7d5860b | 95 | fMinMove = 0.05; //From original UA1 JetFinder |
96 | fMaxMove = 0.15; //From original UA1 JetFinder | |
97 | fBGMaxMove = 0.035; //From original UA1 JetFinder | |
98 | fPtCut = 0; | |
99 | fHadCorr = 0; | |
100 | fEBGTotal = 1.0; //Set to 1 so that no div by zero in first FindJets() loop | |
101 | fEBGTotalOld = 0.0; | |
102 | fEBGAve = 0.0; | |
103 | fEnergy = 0.0; | |
104 | fJetEta = 0.0; | |
105 | fJetPhi = 0.0; | |
106 | fEtaInit = 0.0; | |
107 | fPhiInit = 0.0; | |
108 | fEtaB = 0.0; | |
109 | fPhiB = 0.0; | |
110 | fJetESum = 0.0; | |
111 | fJetEtaSum = 0.0; | |
112 | fJetPhiSum = 0.0; | |
113 | fDEta = 0.0; | |
114 | fDPhi = 0.0; | |
115 | fDistP = 0.0; | |
116 | fDistI = 0.0; | |
117 | fTempE = 0.0; | |
118 | fRad = 2.0; //Set to 2 to start | |
119 | fNumInCone = 0; | |
120 | fNumJets = 0; | |
121 | fArrayInitialised = 0; //Set to FALSE to start | |
122 | fBGType = kRatio; //Set Ratio method as default BG subtraction method | |
123 | fBGPar = -1.0; //Set to 1 to start | |
124 | } | |
125 | ||
126 | AliEMCALJetFinderAlgoOmni::~AliEMCALJetFinderAlgoOmni() | |
127 | { | |
128 | //Destructor | |
129 | if (fDebug>0) Info("AliEMCALJetFinderAlgoOmni","Beginning Destructor"); | |
130 | delete[] fUnit; | |
131 | delete[] fUnitNoCuts; | |
132 | } | |
133 | ||
134 | void AliEMCALJetFinderAlgoOmni::SetJetFindingParameters | |
135 | (Int_t numUnits, Float_t eSeed, Float_t coneRad, Float_t jetEMin, Float_t etMin, | |
136 | Float_t minMove, Float_t maxMove, Float_t bgMaxMove) | |
137 | { | |
138 | //Sets parameters for the JetFinding algorithm | |
139 | if (fDebug>1) Info("SetJetFindingParameters","Setting parameters for JetFinding"); | |
140 | ||
141 | SetNumUnits(numUnits); | |
142 | SetJetESeed(eSeed); | |
143 | SetConeRad(coneRad); | |
144 | SetJetEMin(jetEMin); | |
145 | SetEtMin(etMin); | |
146 | SetMinMove(minMove); | |
147 | SetMaxMove(maxMove); | |
148 | SetBGMaxMove(bgMaxMove); | |
149 | } | |
150 | ||
151 | void AliEMCALJetFinderAlgoOmni::SetJetFindingParameters | |
152 | (Int_t numUnits, Float_t eSeed, Float_t coneRad, Float_t jetEMin, Float_t etMin) | |
153 | { | |
154 | //Sets fewer parameters for the JetFinding algorithm | |
155 | if (fDebug>1) Info("SetJetFindingParameters","Setting parameters for JetFinding"); | |
156 | ||
157 | SetNumUnits(numUnits); | |
158 | SetJetESeed(eSeed); | |
159 | SetConeRad(coneRad); | |
160 | SetJetEMin(jetEMin); | |
161 | SetEtMin(etMin); | |
162 | SetMinMove(fMinMove); | |
163 | SetMaxMove(fMaxMove); | |
164 | SetBGMaxMove(fBGMaxMove); | |
165 | } | |
166 | ||
167 | void AliEMCALJetFinderAlgoOmni::InitUnitArray() | |
168 | { | |
169 | //Initialises unit arrays | |
5bf42aa6 | 170 | if(fArrayInitialised) delete [] fUnit; |
171 | if(fArrayInitialised) delete [] fUnitNoCuts; | |
f7d5860b | 172 | fUnit = new AliEMCALJetFinderAlgoUA1Unit[fNumUnits]; |
173 | fUnitNoCuts = new AliEMCALJetFinderAlgoUA1Unit[fNumUnits]; | |
174 | fArrayInitialised = 1; | |
175 | } | |
176 | ||
177 | void AliEMCALJetFinderAlgoOmni::FillUnitArray(AliEMCALJetFinderAlgoUA1FillUnitFlagType_t flag) | |
178 | { | |
44f59d68 | 179 | // Fill the unit array |
f7d5860b | 180 | if (fDebug>1) Info("FillUnitArray","Beginning FillUnitArray"); |
9e5d2067 | 181 | // AliEMCAL* pEMCAL = (AliEMCAL*) gAlice->GetModule("EMCAL"); |
f7d5860b | 182 | // if (pEMCAL){ |
183 | // AliEMCALGeometry* geom = AliEMCALGeometry::GetInstance(pEMCAL->GetTitle(), ""); | |
184 | // }else | |
185 | // { | |
c21d4f1a | 186 | |
187 | AliEMCALGetter * gime = AliEMCALGetter::Instance() ; | |
5bf42aa6 | 188 | AliEMCALGeometry * geom; |
189 | if (gime) | |
190 | geom = gime->EMCALGeometry(); | |
191 | else | |
192 | geom = AliEMCALGeometry::GetInstance("EMCAL_55_25","EMCAL"); | |
c21d4f1a | 193 | |
5933ca61 | 194 | // } |
f7d5860b | 195 | |
196 | AliEMCALJetFinderAlgoUA1FillUnitFlagType_t option = flag; | |
197 | Int_t numTracks, numDigits; | |
198 | ||
199 | //Loops over all elements in the AliEMCALJetFinderAlgoUA1Unit array and | |
200 | //fills the objects with relevant values from the Data Input object | |
201 | if (fDebug>10) Info("FillUnitArray","Filling array with Unit objects"); | |
202 | if (fDebug>15) Info("FillUnitArray","NTracks %i NDigits %i",fInputPointer->GetNTracks(),fInputPointer->GetNDigits()); | |
203 | numTracks = fInputPointer->GetNTracks(); | |
204 | numDigits = fInputPointer->GetNDigits(); | |
205 | TParticle *myPart; | |
206 | AliEMCALDigit *myDigit; | |
03149ca8 | 207 | if (!fPythiaComparison) |
208 | { | |
f7d5860b | 209 | //Fill units with Track info if appropriate |
210 | if(option==kFillTracksOnly || option ==kFillAll) | |
211 | { | |
212 | for(Int_t j=0; j<numTracks; j++) | |
213 | { | |
214 | myPart = fInputPointer->GetTrack(j); | |
215 | Float_t eta = myPart->Eta(); | |
216 | Float_t phi = myPart->Phi(); | |
217 | Int_t towerID = geom->TowerIndexFromEtaPhi(eta,180.0/TMath::Pi()*phi); | |
218 | Float_t pT = myPart->Pt(); | |
219 | Float_t unitEnergy = fUnit[towerID-1].GetUnitEnergy(); | |
220 | Float_t unitEnergyNoCuts = fUnitNoCuts[towerID-1].GetUnitEnergy(); | |
221 | ||
5933ca61 | 222 | |
223 | //OLD WAY: //Do Hadron Correction | |
f7d5860b | 224 | if(fHadCorr != 0) |
225 | { | |
226 | Double_t fullP = myPart->P(); | |
227 | Double_t hCEnergy = fHadCorr->GetEnergy(fullP, (Double_t)eta); | |
228 | unitEnergy -= hCEnergy*TMath::Sin(myPart->Theta()); | |
5933ca61 | 229 | unitEnergyNoCuts -= hCEnergy*TMath::Sin(myPart->Theta()); |
f7d5860b | 230 | fUnit[towerID-1].SetUnitEnergy(unitEnergy); |
5933ca61 | 231 | fUnitNoCuts[towerID-1].SetUnitEnergy(unitEnergyNoCuts); |
f7d5860b | 232 | } //end Hadron Correction loop |
5933ca61 | 233 | |
234 | ||
235 | /* | |
f7d5860b | 236 | //Do Hadron Correction with propagate phi for the track |
237 | if(fHadCorr != 0) | |
238 | { | |
239 | Bool_t curl = 1; | |
240 | Float_t deltaPhi; | |
241 | TParticlePDG *pdg = myPart->GetPDG(); | |
242 | if(pdg->Charge() < 0) | |
243 | { | |
244 | deltaPhi = PropagatePhi(myPart->Pt(), -1.0, curl); | |
245 | } | |
246 | else{ | |
247 | deltaPhi = PropagatePhi(myPart->Pt(), 1.0, curl); | |
248 | } | |
249 | phi += deltaPhi; | |
250 | //Get new tower id for cell that track would curve into | |
251 | Int_t towerID2; | |
956a522c | 252 | if(phi>(TMath::Pi()/180.0)*geom->GetArm1PhiMax() || phi<(TMath::Pi()/180.0)*geom->GetArm1PhiMin()) |
f7d5860b | 253 | { |
254 | towerID2 = -1; | |
255 | } | |
256 | else{ | |
257 | towerID2 = geom->TowerIndexFromEtaPhi(eta,180.0/TMath::Pi()*phi); | |
258 | } | |
259 | ||
260 | if(towerID2 != -1) | |
261 | { | |
262 | //Find unit energy of new tower | |
263 | Float_t unitEnergy2 = fUnit[towerID2-1].GetUnitEnergy(); | |
264 | Float_t unitEnergy2NoCuts = fUnitNoCuts[towerID2-1].GetUnitEnergy(); | |
265 | Double_t fullP = myPart->P(); | |
266 | Double_t hCEnergy = fHadCorr->GetEnergy(fullP, (Double_t)eta); | |
267 | unitEnergy2 -= hCEnergy*TMath::Sin(myPart->Theta()); | |
268 | unitEnergy2NoCuts -= hCEnergy*TMath::Sin(myPart->Theta()); | |
269 | fUnit[towerID2-1].SetUnitEnergy(unitEnergy2); | |
270 | fUnitNoCuts[towerID2-1].SetUnitEnergy(unitEnergy2NoCuts); | |
271 | }//end if for towerID2 | |
272 | }//end Hadron Correction loop | |
5933ca61 | 273 | */ |
f7d5860b | 274 | |
275 | fUnitNoCuts[towerID-1].SetUnitEnergy(unitEnergyNoCuts + pT); | |
276 | //Do Pt cut on tracks | |
277 | if(fPtCut != 0 && pT < fPtCut) continue; | |
278 | ||
279 | fUnit[towerID-1].SetUnitEnergy(unitEnergy+pT); | |
280 | ||
281 | }//end tracks loop | |
282 | }//end Tracks condition | |
283 | ||
284 | ||
285 | //Fill units with Digit info if appropriate | |
286 | if(option ==kFillDigitsOnly || option ==kFillAll) | |
287 | { | |
288 | for(Int_t k=0; k<numDigits; k++) | |
289 | { | |
290 | myDigit = fInputPointer->GetDigit(k); | |
291 | if (fDebug>10) Info("FillUnitArray","getting digits %i %i numdigits",k,numDigits ); | |
292 | Int_t towerID = myDigit->GetId(); | |
293 | Int_t amplitude = myDigit->GetAmp(); //Gets the integer valued amplitude of the digit | |
294 | Float_t amp = (Float_t)amplitude; //Need to typecast to Float_t before doing real energy conversion | |
295 | Float_t digitEnergy = amp/10000000.0; //Factor of 10 million needed to convert! | |
296 | Float_t unitEnergy = fUnit[towerID-1].GetUnitEnergy() + digitEnergy; | |
297 | Float_t unitEnergyNoCuts = fUnitNoCuts[towerID-1].GetUnitEnergy() + digitEnergy; | |
298 | fUnit[towerID-1].SetUnitEnergy(unitEnergy); | |
299 | fUnitNoCuts[towerID-1].SetUnitEnergy(unitEnergyNoCuts); | |
300 | }//end digits loop | |
301 | }//end digits condition | |
302 | ||
303 | //Set all unit flags, Eta, Phi | |
304 | for(Int_t i=0; i<fNumUnits; i++) | |
305 | { | |
306 | if (fDebug>10) Info("FillUnitArray","Setting all units outside jets"); | |
9e7e46ab | 307 | //Set all units to be outside a jet initially |
308 | fUnit[i].SetUnitFlag(kOutJet); | |
f7d5860b | 309 | fUnit[i].SetUnitID(i+1); |
310 | Float_t eta; | |
311 | Float_t phi; | |
312 | geom->EtaPhiFromIndex(fUnit[i].GetUnitID(), eta, phi); | |
313 | fUnit[i].SetUnitEta(eta); | |
314 | fUnit[i].SetUnitPhi(phi*TMath::Pi()/180.0); | |
9e7e46ab | 315 | //Set all units to be outside a jet initially |
316 | fUnitNoCuts[i].SetUnitFlag(kOutJet); | |
f7d5860b | 317 | fUnitNoCuts[i].SetUnitID(i+1); |
318 | eta = 0.0; | |
319 | phi = 0.0; | |
320 | geom->EtaPhiFromIndex(fUnitNoCuts[i].GetUnitID(), eta, phi); | |
321 | fUnitNoCuts[i].SetUnitEta(eta); | |
322 | fUnitNoCuts[i].SetUnitPhi(phi*TMath::Pi()/180.0); | |
323 | // if(i>13000) cout<<"!!!!!!!!!!!!!!!!!For unit0, eta="<<eta<<" and phi="<<phi*TMath::Pi()/180.0<<" and ID="<<fUnit[i].GetUnitID()<<endl; | |
324 | // if(fUnit[i].GetUnitEnergy()>0) cout<<"Unit ID "<<fUnit[i].GetUnitID() <<"with eta="<<eta<<" and phi="<<phi*TMath::Pi()/180.0<<" has energy="<<fUnit[i].GetUnitEnergy()<<endl; | |
325 | }//end loop over all units in array (same as all towers in EMCAL) | |
03149ca8 | 326 | |
327 | } | |
328 | if (fPythiaComparison) | |
329 | { | |
330 | for(Int_t j=0; j<numTracks; j++) | |
331 | { | |
332 | myPart = fInputPointer->GetTrack(j); | |
333 | fUnit[j].SetUnitID(j); | |
334 | fUnit[j].SetUnitFlag(kOutJet); | |
335 | fUnit[j].SetUnitEta(myPart->Eta()); | |
336 | fUnit[j].SetUnitPhi(myPart->Phi()); | |
e64765ad | 337 | if (myPart->Energy()*TMath::Sin(myPart->Theta()) > fPtCut) |
338 | { | |
339 | fUnit[j].SetUnitEnergy(myPart->Energy()*TMath::Sin(myPart->Theta())); | |
340 | }else | |
341 | { | |
342 | fUnit[j].SetUnitEnergy(0.00); | |
343 | } | |
03149ca8 | 344 | fUnitNoCuts[j].SetUnitID(j); |
345 | fUnitNoCuts[j].SetUnitFlag(kOutJet); | |
346 | fUnitNoCuts[j].SetUnitEta(myPart->Eta()); | |
347 | fUnitNoCuts[j].SetUnitPhi(myPart->Phi()); | |
348 | fUnitNoCuts[j].SetUnitEnergy(myPart->Energy()*TMath::Sin(myPart->Theta())); | |
349 | } | |
350 | for(Int_t k=numTracks; k < fNumUnits; k++) | |
351 | { | |
352 | fUnit[k].SetUnitID(k); | |
e5ba9847 | 353 | fUnit[k].SetUnitFlag(kBelowMinEt); |
03149ca8 | 354 | fUnit[k].SetUnitEta(0.0); |
355 | fUnit[k].SetUnitPhi(0.0); | |
356 | fUnit[k].SetUnitEnergy(0.0); | |
357 | fUnitNoCuts[k].SetUnitID(k); | |
e5ba9847 | 358 | fUnitNoCuts[k].SetUnitFlag(kBelowMinEt); |
03149ca8 | 359 | fUnitNoCuts[k].SetUnitEta(0.0); |
360 | fUnitNoCuts[k].SetUnitPhi(0.0); | |
361 | fUnitNoCuts[k].SetUnitEnergy(0.0); | |
362 | } | |
363 | } | |
364 | ||
365 | ||
366 | ||
f7d5860b | 367 | } |
368 | ||
369 | ||
370 | void AliEMCALJetFinderAlgoOmni::Sort(AliEMCALJetFinderAlgoUA1Unit *unit, Int_t length) | |
371 | { | |
372 | //Calls the recursive quicksort method to sort unit objects in decending order of Energy | |
373 | if (fDebug>1) Info("Sort","Sorting Unit objects"); | |
374 | QS(unit, 0, length-1); | |
375 | } | |
376 | ||
377 | ||
378 | void AliEMCALJetFinderAlgoOmni::QS(AliEMCALJetFinderAlgoUA1Unit *unit, Int_t left, Int_t right) | |
379 | { | |
380 | //Sorts the AliEMCALJetFinderAlgoUA1Unit objects in decending order of Energy | |
381 | if (fDebug>111) Info("QS","QuickSorting Unit objects"); | |
382 | ||
383 | Int_t i; | |
384 | Int_t j; | |
385 | AliEMCALJetFinderAlgoUA1Unit unitFirst; | |
386 | AliEMCALJetFinderAlgoUA1Unit unitSecond; | |
387 | ||
388 | i = left; | |
389 | j = right; | |
390 | unitFirst = unit[(left+right)/2]; | |
391 | ||
392 | do | |
393 | { | |
394 | while( (unit[i].GetUnitEnergy() > unitFirst.GetUnitEnergy()) && (i < right)) i++; | |
395 | while( (unitFirst.GetUnitEnergy() > unit[j].GetUnitEnergy()) && (j > left)) j--; | |
396 | ||
397 | if(i <= j) | |
398 | { | |
399 | unitSecond = unit[i]; | |
400 | unit[i] = unit[j]; | |
401 | unit[j] = unitSecond; | |
402 | i++; | |
403 | j--; | |
404 | }//end if | |
405 | }while(i <= j); | |
406 | ||
407 | if(left < j) QS(unit, left, j); | |
408 | if(i < right) QS(unit, i, right); | |
409 | } | |
410 | ||
411 | ||
412 | void AliEMCALJetFinderAlgoOmni::FindBG() | |
413 | { | |
414 | if(fBGType == kRatio) RatioBG(); | |
415 | else if(fBGType == kCone) ConeBG(); | |
416 | else if(fBGType == kConstant) ConstantBG(); | |
417 | } | |
418 | ||
419 | void AliEMCALJetFinderAlgoOmni::RatioBG() | |
420 | { | |
421 | //Finds the background energy for the iteration | |
422 | //using the Ratio method | |
423 | if (fDebug>1) Info("FindBG","Finding Average Background"); | |
424 | //Store BGEperCell from previous iteration! | |
425 | fEBGTotalOld = fEBGTotal; | |
426 | fEBGTotal = 0.0; | |
427 | Int_t numCone = 0; | |
428 | ||
429 | //If user has not set fBGPar, set it to the default | |
430 | //for TPC = 90% efficiency, PtCut = 2GeV/c, timecut = 30ns | |
431 | if(fBGPar == -1) fBGPar = 0.4685; | |
432 | ||
433 | //Loop over all unit objects in the Unit array and link to same | |
434 | //unit ID in NoCuts Unit array | |
435 | for(Int_t i=0; i<fNumUnits; i++) | |
436 | { | |
437 | if(fUnit[i].GetUnitFlag() != kInJet) | |
438 | { | |
439 | Int_t id = fUnit[i].GetUnitID(); | |
440 | fEBGTotal += fUnitNoCuts[id-1].GetUnitEnergy(); | |
441 | } | |
442 | else numCone++; | |
443 | }//end for | |
444 | ||
445 | fEBGTotal *= fBGPar; | |
446 | fEBGAve = fEBGTotal / (fNumUnits - numCone); | |
447 | if (fDebug>5) Info("FindBG","Average BG is %f: ",fEBGAve); | |
448 | ||
449 | for(Int_t count=0; count<fNumUnits;count++) | |
450 | { | |
451 | fUnit[count].SetUnitFlag(kOutJet); | |
452 | }//end for | |
453 | } | |
454 | ||
455 | void AliEMCALJetFinderAlgoOmni::ConeBG() | |
456 | { | |
457 | //Finds the background energy for the iteration | |
458 | //using all energy not contained inside a jet | |
459 | if (fDebug>1) Info("FindBG","Finding Average Background"); | |
460 | //Store old value of BGEperCell! | |
461 | fEBGTotalOld = fEBGTotal; | |
462 | fEBGTotal = 0.0; | |
463 | Int_t numCone = 0; | |
464 | ||
465 | //Loop over all unit objects in the array and sum the energy of those not in a jet | |
466 | for(Int_t i=0; i<fNumUnits; i++) | |
467 | { | |
468 | if(fUnit[i].GetUnitFlag() != kInJet) | |
469 | fEBGTotal += fUnit[i].GetUnitEnergy(); | |
470 | else numCone++; | |
471 | }//end for | |
472 | ||
473 | fEBGAve = fEBGTotal / (fNumUnits - numCone); | |
474 | if (fDebug>5) Info("FindBG","Average BG is %f: ",fEBGAve); | |
475 | ||
476 | for(Int_t count=0; count<fNumUnits;count++) | |
477 | { | |
478 | fUnit[count].SetUnitFlag(kOutJet); | |
479 | }//end for | |
480 | } | |
481 | ||
482 | void AliEMCALJetFinderAlgoOmni::ConstantBG() | |
483 | { | |
484 | //Finds the background energy for the iteration | |
485 | //using all energy not contained inside a jet | |
486 | if (fDebug>1) Info("FindBG","Finding Average Background"); | |
487 | ||
488 | //If user has not set fBGPar, set it to the default | |
489 | //for TPC = 90% efficiency, PtCut = 2GeV/c, timecut = 30ns | |
490 | if(fBGPar == -1) fBGPar = 0.03378; | |
491 | ||
492 | fEBGAve = fBGPar; | |
493 | if (fDebug>5) Info("FindBG","Average BG is %f: ",fEBGAve); | |
494 | ||
495 | fEBGTotal = 0.0; | |
496 | Int_t numCone = 0; | |
497 | for(Int_t count=0; count<fNumUnits;count++) | |
498 | { | |
499 | if(fUnit[count].GetUnitFlag() == kInJet) | |
500 | { | |
501 | numCone++; | |
502 | } | |
503 | fUnit[count].SetUnitFlag(kOutJet); | |
504 | }//end for | |
505 | fEBGTotal = fEBGAve * (fNumUnits-numCone); | |
506 | fEBGTotalOld = fEBGTotal; | |
507 | } | |
508 | ||
509 | void AliEMCALJetFinderAlgoOmni::FindJetEtaPhi(Int_t counter) | |
510 | { | |
511 | //Finds the eta and phi of the jet axis | |
512 | if (fDebug>10) Info("FindJetEtaPhi","Finding Jet Eta and Phi"); | |
513 | ||
514 | fDEta = fUnit[counter].GetUnitEta() - fEtaInit; | |
515 | fDPhi = fUnit[counter].GetUnitPhi() - fPhiInit; | |
516 | ||
517 | fEnergy = fUnit[counter].GetUnitEnergy() - fEBGAve; | |
518 | fJetEtaSum += fEnergy * fDEta; | |
519 | fJetPhiSum += fEnergy * fDPhi; | |
520 | fJetESum += fEnergy; | |
e5ba9847 | 521 | if (fJetESum >1.0e-7) |
522 | { | |
523 | fJetEta = fEtaInit + (fJetEtaSum / fJetESum); | |
524 | fJetPhi = fPhiInit + (fJetPhiSum / fJetESum); | |
525 | } | |
f7d5860b | 526 | } |
527 | ||
528 | ||
529 | void AliEMCALJetFinderAlgoOmni::FindJetEnergy() | |
530 | { | |
531 | //Finds the energy of the jet after the final axis has been found | |
532 | if (fDebug>1) Info("FindJetEnergy","Finding Jet Energy"); | |
533 | ||
534 | for(Int_t i=0; i<fNumUnits; i++) | |
535 | { | |
536 | //Loop over all unit objects in the array and find if within cone radius | |
537 | Float_t dEta = fUnit[i].GetUnitEta() - fJetEta; | |
538 | Float_t dPhi = fUnit[i].GetUnitPhi() - fJetPhi; | |
03149ca8 | 539 | Float_t rad; |
540 | if ((dEta*dEta) + (dPhi*dPhi)>1.e-7) | |
541 | { | |
542 | rad = TMath::Sqrt( (dEta*dEta) + (dPhi*dPhi) ); | |
543 | }else | |
544 | { | |
545 | rad=0.0; | |
546 | } | |
f7d5860b | 547 | |
548 | if(fUnit[i].GetUnitFlag()==kOutJet && rad<= fConeRad) | |
549 | { | |
550 | fUnit[i].SetUnitFlag(kInCurrentJet); | |
551 | Float_t energy = fUnit[i].GetUnitEnergy() - fEBGAve; | |
552 | fJetESum += energy; | |
553 | fJetEtaSum += energy * dEta; | |
554 | fJetPhiSum += energy * dPhi; | |
555 | fNumInCone++; //Increment the number of cells in the jet cone | |
556 | }//end if | |
557 | }//end for | |
558 | } | |
559 | ||
560 | ||
561 | void AliEMCALJetFinderAlgoOmni::StoreJetInfo() | |
562 | { | |
563 | //Stores the resulting jet information in appropriate storage structure (TO BE DECIDED!!!!) | |
564 | if (fDebug>1) Info("StoreJetInfo","Storing Jet Information"); | |
c21d4f1a | 565 | AliEMCALGetter * gime = AliEMCALGetter::Instance() ; |
5bf42aa6 | 566 | AliEMCALGeometry * geom; |
567 | if (gime) | |
568 | geom = gime->EMCALGeometry(); | |
569 | else | |
570 | geom = AliEMCALGeometry::GetInstance("EMCAL_55_25","EMCAL"); | |
f7d5860b | 571 | //Store: |
572 | //fJetESum is the final jet energy (background has been subtracted) | |
573 | //fJetEta is the final jet Eta | |
574 | //fJetPhi is the final jet Phi | |
575 | //fNumInCone is the final number of cells included in the jet cone | |
576 | //fEtaInit is the eta of the initiator cell | |
577 | //fPhiInit is the phi of the initiator cell | |
5bf42aa6 | 578 | |
579 | AliEMCALJet jet(fJetESum,fJetPhi,fJetEta); | |
f7d5860b | 580 | |
581 | cout<<"For iteration "<<fNumIter <<" and Jet number " <<fNumJets <<endl; | |
582 | cout<<"The jet energy is: " <<fJetESum <<endl; | |
583 | cout<<"The jet eta is ---->" <<fJetEta <<endl; | |
584 | cout<<"The jet phi is ---->" <<fJetPhi <<endl; | |
585 | ||
586 | Int_t numberTracks = fInputPointer->GetNTracks(); | |
5933ca61 | 587 | Int_t numberDigits = fInputPointer->GetNDigits(); |
588 | AliEMCALDigit *myD; | |
f7d5860b | 589 | TParticle *myP; |
590 | Int_t numTracksInCone = 0; | |
5933ca61 | 591 | Float_t trackEnergy = 0.0; |
9e7e46ab | 592 | Float_t trackEnergyPtCut =0.0; |
5933ca61 | 593 | Float_t emcalEnergy = 0.0; |
9e7e46ab | 594 | Float_t emcalEnergyBGSub = 0.0; |
f7d5860b | 595 | |
596 | for(Int_t counter=0; counter<numberTracks; counter++) | |
597 | { | |
598 | myP = fInputPointer->GetTrack(counter); | |
599 | Float_t eta = myP->Eta(); | |
600 | Float_t phi = myP->Phi(); | |
601 | Float_t deta = fJetEta-eta; | |
602 | Float_t dphi = fJetPhi -phi; | |
603 | Float_t rad = TMath::Sqrt( (deta*deta) + (dphi*dphi)); | |
604 | if(rad<=fConeRad) numTracksInCone++; | |
605 | }//end for | |
606 | ||
607 | Float_t *pTArray = new Float_t[numTracksInCone]; | |
608 | Float_t *etaArray = new Float_t[numTracksInCone]; | |
609 | Float_t *phiArray = new Float_t[numTracksInCone]; | |
610 | Int_t *pdgArray = new Int_t[numTracksInCone]; | |
611 | Int_t index = 0; | |
612 | ||
613 | for(Int_t counter2=0; counter2<numberTracks; counter2++) | |
614 | { | |
615 | myP = fInputPointer->GetTrack(counter2); | |
616 | Float_t eta = myP->Eta(); | |
617 | Float_t phi = myP->Phi(); | |
618 | Float_t deta = fJetEta-eta; | |
619 | Float_t dphi = fJetPhi -phi; | |
03149ca8 | 620 | Float_t rad ; |
621 | if ((deta*deta) + (dphi*dphi)>1.e-7) | |
622 | { | |
623 | rad = TMath::Sqrt( (deta*deta) + (dphi*dphi) ); | |
624 | }else | |
625 | { | |
626 | rad=0.0; | |
627 | } | |
628 | ||
f7d5860b | 629 | if(rad<=fConeRad) |
630 | { | |
631 | pTArray[index] = myP->Pt(); | |
5933ca61 | 632 | //Calculate track contribution within jetcone |
9e7e46ab | 633 | trackEnergy += myP->Pt(); |
634 | if(myP->Pt() >= fPtCut) trackEnergyPtCut += myP->Pt(); | |
f7d5860b | 635 | etaArray[index] = eta; |
636 | phiArray[index] = phi; | |
637 | pdgArray[index] = myP->GetPdgCode(); | |
638 | index++; | |
9e7e46ab | 639 | if(fHadCorr != 0) |
640 | { | |
641 | Double_t fullP = myP->P(); | |
642 | Double_t hCEnergy = fHadCorr->GetEnergy(fullP, (Double_t)eta); | |
643 | emcalEnergy -= hCEnergy*TMath::Sin(myP->Theta()); | |
644 | emcalEnergyBGSub -= hCEnergy*TMath::Sin(myP->Theta()); | |
645 | } //end Hadron Correction loop | |
646 | ||
f7d5860b | 647 | }//end if |
648 | }//end for | |
649 | ||
5933ca61 | 650 | //Loop over digits to find EMCal contribution within jetcone |
651 | for(Int_t counter3=0; counter3<numberDigits; counter3++) | |
652 | { | |
653 | myD = fInputPointer->GetDigit(counter3); | |
654 | //GET DIGIT ETA, PHI so that can check if inside R! | |
655 | Float_t eta = 0.0; | |
656 | Float_t phi = 0.0; | |
44f59d68 | 657 | Int_t iID = myD->GetId(); |
658 | geom->EtaPhiFromIndex(iID, eta, phi); | |
5933ca61 | 659 | Float_t deta = fJetEta-eta; |
9e7e46ab | 660 | Float_t dphi = fJetPhi -(TMath::Pi()/180.0)*phi; |
03149ca8 | 661 | //Float_t rad = TMath::Sqrt( (deta*deta) + (dphi*dphi)); |
662 | Float_t rad ; | |
663 | if ((deta*deta) + (dphi*dphi)>1.e-7) | |
664 | { | |
665 | rad = TMath::Sqrt( (deta*deta) + (dphi*dphi) ); | |
666 | }else | |
667 | { | |
668 | rad=0.0; | |
669 | } | |
670 | ||
5933ca61 | 671 | if(rad<=fConeRad) |
672 | { | |
673 | Int_t amplitude = myD->GetAmp(); //Gets the integer valued amplitude of the digit | |
674 | Float_t amp = (Float_t)amplitude; //Need to typecast to Float_t before doing real energy conversion | |
675 | Float_t digitEnergy = amp/10000000.0; //Factor of 10 million needed to convert! | |
676 | emcalEnergy += digitEnergy; | |
9e7e46ab | 677 | emcalEnergyBGSub += (digitEnergy - fEBGAve); |
5933ca61 | 678 | }//end if |
679 | }//end count3 for | |
680 | ||
9e7e46ab | 681 | //Save in JET object |
5bf42aa6 | 682 | jet.SetTrackList(numTracksInCone,pTArray, etaArray, phiArray, pdgArray); |
683 | jet.SetEMCALEnergy(emcalEnergy); | |
684 | jet.SetEMCALEnergyBGSub(emcalEnergyBGSub); | |
685 | jet.SetTrackEnergy(trackEnergy); | |
686 | jet.SetTrackEnergyPtCut(trackEnergyPtCut); | |
687 | fOutputPointer->AddJet(&jet); | |
f7d5860b | 688 | delete[] pTArray; |
689 | delete[] etaArray; | |
690 | delete[] phiArray; | |
691 | delete[] pdgArray; | |
692 | } | |
693 | ||
694 | ||
695 | void AliEMCALJetFinderAlgoOmni::FindJets() | |
696 | { | |
697 | //Runs the complete UA1 JetFinding algorithm to find jets! | |
698 | if (fDebug>1) Info("FindJets","Starting Jet Finding!!!"); | |
699 | ||
700 | //If the array of JetFinderUnit objects has not been initialised then initialise with default settings | |
701 | if(!fArrayInitialised) | |
702 | { | |
703 | InitUnitArray(); | |
704 | FillUnitArray(kFillAll); | |
705 | }//end if | |
706 | if (fDebug>1) Info("FindJets","Unit array filled"); | |
707 | ||
708 | //Step 1. Sort the array in descending order of Energy | |
709 | Sort(fUnit,fNumUnits); | |
710 | ||
711 | //Step 2. Set the number of iterations and Number of jets found to zero to start | |
712 | fNumIter = 0; | |
713 | fNumJets = 0; | |
714 | ||
715 | //Step 3. Begin the iteration loop to find jets | |
716 | //Need to iterate the algorithm while number of iterations<2 OR number of iterations<10 AND | |
717 | //the value of the average background has changed more than specified amount | |
718 | //Min iterations = 2, Max iterations = 10 | |
719 | //while(fNumIter<2 || (fNumIter <10 && ( (fEBGTotal-fEBGTotalOld)/fEBGTotal) > fBGMaxMove) ) | |
720 | ||
721 | while(fNumIter<2 || (fNumIter <10 && ( fEBGTotal-fEBGTotalOld) > fEBGTotal*fBGMaxMove) ) | |
722 | { | |
723 | if (fDebug>1) Info("FindJets","Starting BIG iteration ---> %i",fNumIter); | |
724 | ||
725 | //Step 4. Find the value of the average background energy | |
726 | FindBG(); | |
5bf42aa6 | 727 | fOutputPointer->Reset(kResetJets); //Reset output object to store info for new iteration |
f7d5860b | 728 | fNumJets=0; |
729 | ||
730 | //Loop over the array of unit objects and flag those with energy below MinCellEt | |
731 | Int_t numbelow = 0; | |
732 | for(Int_t j=0; j<fNumUnits; j++) | |
733 | { | |
734 | if( (fUnit[j].GetUnitEnergy()-fEBGAve) < fEtMin) | |
735 | { | |
736 | // fUnit[j].SetUnitFlag(kBelowMinEt); TAKING OUT kBelow flag | |
737 | numbelow++; | |
738 | }//end if | |
739 | }//end for | |
740 | //cout<<"THERE WERE "<<numbelow<<" units with E <EtMin!!!!!!!!!!!!!!!"<<endl; | |
741 | ||
742 | //Do quick check if there are no jets upfront | |
743 | // if(fUnit[0].GetUnitFlag() == kBelowMinEt) | |
744 | if( (fUnit[0].GetUnitEnergy()-fEBGAve) < fEtMin) | |
745 | { | |
746 | cout <<"There are no jets for this event!" <<endl; | |
747 | break; | |
748 | }//end if | |
749 | ||
750 | //Step 5. Begin with the first jet candidate cell (JET SEED LOOP) | |
751 | if (fDebug>5) Info("FindJets","Beginning JET SEED LOOP"); | |
752 | for(Int_t count=0; count<fNumUnits; count++) | |
753 | { | |
754 | ||
755 | //CHECK CONDITION HERE _ NOT SURE IF SHOULD MAYBE BE: GetUnitEnergy()-fEBGAve >fESeed????????????????????????????? | |
756 | if(fUnit[count].GetUnitEnergy()>=fESeed && fUnit[count].GetUnitFlag()==kOutJet) | |
757 | { | |
758 | fEnergy = fUnit[count].GetUnitEnergy() - fEBGAve; | |
759 | fJetEta = fUnit[count].GetUnitEta(); | |
760 | fJetPhi = fUnit[count].GetUnitPhi(); | |
761 | Int_t seedID = fUnit[count].GetUnitID(); | |
762 | if (fDebug>5) Info("FindJets","Inside first candidate jet seed loop for time : %i", count); | |
763 | if (fDebug>5) Info("FindJets","Found candidate energy %f ",fEnergy); | |
764 | if (fDebug>5) Info("FindJets","Found candidate eta %f ", fJetEta); | |
765 | if (fDebug>5) Info("FindJets","Found candidate phi %f ", fJetPhi); | |
766 | if (fDebug>5) Info("FindJets","Found candidate ID %i", seedID); | |
767 | ||
768 | fEtaInit = fJetEta; | |
769 | fPhiInit = fJetPhi; | |
770 | fEtaB = fJetEta; | |
771 | fPhiB = fJetPhi; | |
4537683c | 772 | Int_t testflag = 1; |
773 | do | |
774 | { | |
f7d5860b | 775 | fJetESum = 0.0; |
776 | fJetEtaSum = 0.0; | |
777 | fJetPhiSum = 0.0; | |
778 | ||
779 | //Step 6. Find Jet Eta and Phi | |
780 | //Loop over all units in the array to find the ones in the jet cone and determine contrib to Jet eta, phi | |
f7d5860b | 781 | for(Int_t count1=0; count1<fNumUnits; count1++) |
782 | { | |
4537683c | 783 | if(fUnit[count1].GetUnitID() == seedID && testflag) |
784 | { | |
785 | testflag=0; | |
786 | continue; //skip unit if the jetseed to avoid doublecounting | |
787 | } | |
f7d5860b | 788 | if(fUnit[count1].GetUnitFlag() == kOutJet) |
789 | { | |
790 | fDEta = fUnit[count1].GetUnitEta() - fJetEta; | |
791 | fDPhi = fUnit[count1].GetUnitPhi() - fJetPhi; | |
03149ca8 | 792 | if ( (fDEta*fDEta) + (fDPhi*fDPhi) >1.e-7) |
793 | { | |
794 | fRad = TMath::Sqrt( (fDEta*fDEta) + (fDPhi*fDPhi) ); | |
795 | }else | |
796 | { | |
797 | fRad=0.000; | |
798 | } | |
f7d5860b | 799 | if(fRad <= fConeRad) |
800 | { | |
801 | FindJetEtaPhi(count1); | |
802 | }//end if | |
803 | }//end if | |
804 | }//end for (Jet Eta, Phi LOOP) | |
805 | ||
806 | //Find the distance cone centre moved from previous cone centre | |
807 | if (fDebug>10) Info("FindJets","Checking if cone move small enough"); | |
03149ca8 | 808 | if (((fJetEta-fEtaB)*(fJetEta-fEtaB)) + ((fJetPhi-fPhiB)*(fJetPhi-fPhiB)) >1.e-7) |
809 | { | |
810 | fDistP = TMath::Sqrt( ((fJetEta-fEtaB)*(fJetEta-fEtaB)) + ((fJetPhi-fPhiB)*(fJetPhi-fPhiB)) ); | |
811 | }else | |
812 | { | |
813 | fDistP = 0.00; | |
814 | } | |
f7d5860b | 815 | // if(fDistP <= fMinMove) break; |
816 | ||
817 | ||
818 | //Find the distance cone centre is from initiator cell | |
819 | if (fDebug>10) Info("FindJets","Checking if cone move too large"); | |
e5ba9847 | 820 | if ( ((fJetEtaSum)*(fJetEtaSum))+((fJetPhiSum)*(fJetPhiSum)) >1.e-7) |
03149ca8 | 821 | { |
822 | fDistI = TMath::Sqrt( ((fJetEtaSum/fJetESum)*(fJetEtaSum/fJetESum)) + ((fJetPhiSum/fJetESum)* | |
f7d5860b | 823 | (fJetPhiSum/fJetESum))); |
03149ca8 | 824 | }else |
825 | { | |
826 | fDistI = 0.00; | |
827 | } | |
f7d5860b | 828 | |
829 | if(fDistP>fMinMove && fDistI<fMaxMove) | |
830 | { | |
831 | fEtaB = fJetEta; | |
832 | fPhiB = fJetPhi; | |
833 | }//end if | |
834 | ||
835 | }while(fDistP>fMinMove && fDistI<fMaxMove); | |
836 | ||
837 | fJetEta = fEtaB; | |
838 | fJetPhi = fPhiB; | |
839 | ||
840 | ||
841 | //Step 7. Find the Jet Energy | |
842 | if (fDebug>1) Info("FindJets","Looking for Jet energy"); | |
843 | fJetESum = 0.0; | |
844 | fJetEtaSum = 0.0; | |
845 | fJetPhiSum = 0.0; | |
846 | fNumInCone = 0; | |
847 | FindJetEnergy(); | |
848 | ||
849 | //cout<<"Number of cells in jet cone is: "<<fNumInCone<<endl; | |
850 | ||
851 | //Step 8. Check if the jet is a valid jet | |
852 | //Check if cluster energy is above Min allowed to be a jet | |
853 | //DID NOT DO THE COSH COMPARISON HERE -> NEED TO CHECK WHICH COMPARISON IS BEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | |
854 | if (fDebug>5) Info("FindJets","Checking cluster is valid jet"); | |
855 | if(fJetESum < fJetEMin) | |
856 | { | |
857 | for(Int_t count2=0; count2<fNumUnits; count2++) | |
858 | { | |
859 | if(fUnit[count2].GetUnitFlag()==kInCurrentJet || fUnit[count2].GetUnitFlag()==kOutJet) | |
860 | fUnit[count2].SetUnitFlag(kOutJet); | |
861 | }//end for | |
862 | if (fDebug>10) Info("FindJets","NOT a valid jet cell"); | |
863 | }else | |
864 | { | |
865 | for(Int_t count2=0; count2<fNumUnits; count2++) | |
866 | { | |
867 | if(fUnit[count2].GetUnitFlag()==kInCurrentJet) | |
868 | { | |
869 | // cout<<"Setting unit #"<<count2 <<" to be officially in a jet!"<<endl; | |
870 | fUnit[count2].SetUnitFlag(kInJet); | |
871 | } | |
872 | }//end for | |
873 | ||
874 | //NEED TO CHECK FINAL WEIRD ITERATION OF ETA AND PHI CHANGES!!!!!!!!! | |
875 | // fJetPhi += fJetPhiSum/fJetESum; //CHECK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | |
876 | // fJetEta += fJetEtaSum/fJetESum; //CHECK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | |
877 | ||
878 | fNumJets++; //Incrementing number of jets found | |
879 | StoreJetInfo(); //Storing jet info | |
880 | ||
881 | }//end if (check cluster above Min Jet Energy) | |
882 | }//end if (Jet Seed condition) | |
883 | }//end (JET SEED LOOP) | |
884 | ||
885 | if (fDebug>5) Info("FindJets","End of BIG iteration number %i",fNumIter); | |
886 | // this->Dump(); | |
887 | fNumIter++; | |
888 | }//end 10 iteration WHILE LOOP | |
889 | } | |
890 | ||
891 | ||
892 | ||
893 | ||
894 | ||
895 | ||
896 | ||
897 | ||
898 | ||
899 | ||
900 |