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2 | /************************************************************************** | |
3 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * * | |
5 | * Author: The ALICE Off-line Project. * | |
6 | * Contributors are mentioned in the code where appropriate. * | |
7 | * * | |
8 | * Permission to use, copy, modify and distribute this software and its * | |
9 | * documentation strictly for non-commercial purposes is hereby granted * | |
10 | * without fee, provided that the above copyright notice appears in all * | |
11 | * copies and that both the copyright notice and this permission notice * | |
12 | * appear in the supporting documentation. The authors make no claims * | |
13 | * about the suitability of this software for any purpose. It is * | |
14 | * provided "as is" without express or implied warranty. * | |
15 | **************************************************************************/ | |
16 | ||
ee6b678f | 17 | /* $Id$ */ |
f7d5860b | 18 | |
19 | //*--Author: Sarah Blyth (LBL) | |
20 | //*--Based on UA1 jet algorithm from LUND JETSET called from EMC-erj | |
21 | ||
22 | #include "TTask.h" | |
23 | #include "AliEMCALJetFinderInput.h" | |
24 | #include "AliEMCALJetFinderOutput.h" | |
25 | #include "AliEMCALJetFinderAlgo.h" | |
26 | #include "AliEMCALJetFinderAlgoUA1.h" | |
27 | #include "AliEMCALJetFinderAlgoUA1Unit.h" | |
28 | #include "AliEMCALGeometry.h" | |
29 | #include "AliEMCAL.h" | |
30 | #include "AliEMCALGetter.h" | |
31 | #include "AliEMCALDigit.h" | |
32 | #include "TParticle.h" | |
33 | #include "AliRun.h" | |
34 | #include "AliEMCALJet.h" | |
35 | #include "TMath.h" | |
36 | ||
37 | ||
38 | ClassImp(AliEMCALJetFinderAlgoUA1) | |
39 | ||
40 | AliEMCALJetFinderAlgoUA1::AliEMCALJetFinderAlgoUA1() | |
41 | { | |
42 | //Default constructor | |
43 | if (fDebug>0) Info("AliEMCALJetFinderAlgoUA1","Beginning Default Constructor"); | |
44 | ||
45 | fNumIter = 0; | |
46 | fNumUnits = 13824; //Number of towers in EMCAL | |
47 | fESeed = 5.0; //Default value | |
48 | fConeRad = 0.5; //Default value | |
49 | fJetEMin = 10.0; //Default value | |
50 | fEtMin = 0.28; //Default value | |
51 | fMinMove = 0.05; //From original UA1 JetFinder | |
52 | fMaxMove = 0.15; //From original UA1 JetFinder | |
53 | fBGMaxMove = 0.035; //From original UA1 JetFinder | |
54 | fPtCut = 0; | |
55 | fHadCorr = 0; | |
56 | fEBGTotal = 1.0; //Set to 1 so that no div by zero in first FindJets() loop | |
57 | fEBGTotalOld = 0.0; | |
58 | fEBGAve = 0.0; | |
59 | fEnergy = 0.0; | |
60 | fJetEta = 0.0; | |
61 | fJetPhi = 0.0; | |
62 | fEtaInit = 0.0; | |
63 | fPhiInit = 0.0; | |
64 | fEtaB = 0.0; | |
65 | fPhiB = 0.0; | |
66 | fJetESum = 0.0; | |
67 | fJetEtaSum = 0.0; | |
68 | fJetPhiSum = 0.0; | |
69 | fDEta = 0.0; | |
70 | fDPhi = 0.0; | |
71 | fDistP = 0.0; | |
72 | fDistI = 0.0; | |
73 | fTempE = 0.0; | |
74 | fRad = 2.0; //Set to 2 to start | |
75 | fNumInCone = 0; | |
76 | fNumJets = 0; | |
77 | fArrayInitialised = 0; //Set to FALSE to start | |
78 | } | |
79 | ||
80 | AliEMCALJetFinderAlgoUA1::~AliEMCALJetFinderAlgoUA1() | |
81 | { | |
82 | //Destructor | |
83 | if (fDebug>0) Info("AliEMCALJetFinderAlgoUA1","Beginning Destructor"); | |
84 | delete[] fUnit; | |
85 | } | |
86 | ||
87 | void AliEMCALJetFinderAlgoUA1::SetJetFindingParameters | |
88 | (Int_t numUnits, Float_t eSeed, Float_t coneRad, Float_t jetEMin, Float_t etMin, | |
89 | Float_t minMove, Float_t maxMove, Float_t bgMaxMove) | |
90 | { | |
91 | //Sets parameters for the JetFinding algorithm | |
92 | if (fDebug>1) Info("SetJetFindingParameters","Setting parameters for JetFinding"); | |
93 | ||
94 | SetNumUnits(numUnits); | |
95 | SetJetESeed(eSeed); | |
96 | SetConeRad(coneRad); | |
97 | SetJetEMin(jetEMin); | |
98 | SetEtMin(etMin); | |
99 | SetMinMove(minMove); | |
100 | SetMaxMove(maxMove); | |
101 | SetBGMaxMove(bgMaxMove); | |
102 | } | |
103 | ||
104 | void AliEMCALJetFinderAlgoUA1::SetJetFindingParameters | |
105 | (Int_t numUnits, Float_t eSeed, Float_t coneRad, Float_t jetEMin, Float_t etMin) | |
106 | { | |
107 | //Sets fewer parameters for the JetFinding algorithm | |
108 | if (fDebug>1) Info("SetJetFindingParameters","Setting parameters for JetFinding"); | |
109 | ||
110 | SetNumUnits(numUnits); | |
111 | SetJetESeed(eSeed); | |
112 | SetConeRad(coneRad); | |
113 | SetJetEMin(jetEMin); | |
114 | SetEtMin(etMin); | |
115 | SetMinMove(fMinMove); | |
116 | SetMaxMove(fMaxMove); | |
117 | SetBGMaxMove(fBGMaxMove); | |
118 | } | |
119 | ||
120 | void AliEMCALJetFinderAlgoUA1::InitUnitArray() | |
121 | { | |
122 | //Initialises unit array | |
123 | if(fArrayInitialised) delete[] fUnit; | |
124 | fUnit = new AliEMCALJetFinderAlgoUA1Unit[fNumUnits]; | |
125 | fArrayInitialised = 1; | |
126 | } | |
127 | ||
128 | void AliEMCALJetFinderAlgoUA1::FillUnitArray(AliEMCALJetFinderAlgoUA1FillUnitFlagType_t flag) | |
129 | { | |
130 | if (fDebug>1) Info("FillUnitArray","Beginning FillUnitArray"); | |
131 | //AliEMCAL* pEMCAL = (AliEMCAL*) gAlice->GetModule("EMCAL"); | |
132 | ||
133 | // if (pEMCAL){ | |
134 | // AliEMCALGeometry* geom = AliEMCALGeometry::GetInstance(pEMCAL->GetTitle(), ""); | |
135 | // }else | |
136 | // { | |
137 | //AliEMCALGeometry* geom = AliEMCALGeometry::GetInstance("EMCAL_5655_21", ""); | |
138 | AliEMCALGeometry* geom = AliEMCALGetter::Instance()->EMCALGeometry() ; | |
139 | // } | |
140 | ||
141 | AliEMCALJetFinderAlgoUA1FillUnitFlagType_t option = flag; | |
142 | Int_t numTracks, numDigits; | |
143 | ||
144 | //Loops over all elements in the AliEMCALJetFinderAlgoUA1Unit array and | |
145 | //fills the objects with relevant values from the Data Input object | |
146 | if (fDebug>1) Info("FillUnitArray","Filling array with Unit objects"); | |
147 | if (fDebug>1) Info("FillUnitArray","NTracks %i NDigits %i",fInputPointer->GetNTracks(),fInputPointer->GetNDigits()); | |
148 | numTracks = fInputPointer->GetNTracks(); | |
149 | numDigits = fInputPointer->GetNDigits(); | |
150 | TParticle *myPart; | |
151 | AliEMCALDigit *myDigit; | |
152 | ||
153 | //Fill units with Track info if appropriate | |
154 | if(option==kFillTracksOnly || option ==kFillAll) | |
155 | { | |
156 | for(Int_t j=0; j<numTracks; j++) | |
157 | { | |
158 | myPart = fInputPointer->GetTrack(j); | |
159 | Float_t eta = myPart->Eta(); | |
160 | Float_t phi = myPart->Phi(); | |
161 | Int_t towerID = geom->TowerIndexFromEtaPhi(eta,180.0/TMath::Pi()*phi); | |
162 | Float_t pT = myPart->Pt(); | |
163 | Float_t unitEnergy = fUnit[towerID-1].GetUnitEnergy(); | |
164 | ||
165 | //Do Hadron Correction | |
166 | if(fHadCorr != 0) | |
167 | { | |
168 | Double_t fullP = myPart->P(); | |
169 | Double_t hCEnergy = fHadCorr->GetEnergy(fullP, (Double_t)eta); | |
170 | unitEnergy -= hCEnergy*TMath::Sin(myPart->Theta()); | |
171 | fUnit[towerID-1].SetUnitEnergy(unitEnergy); | |
172 | } //end Hadron Correction loop | |
173 | ||
174 | //Do Pt cut on tracks | |
175 | if(fPtCut != 0 && pT < fPtCut) continue; | |
176 | ||
177 | fUnit[towerID-1].SetUnitEnergy(unitEnergy+pT); | |
178 | ||
179 | }//end tracks loop | |
180 | }//end Tracks condition | |
181 | ||
182 | ||
183 | //Fill units with Digit info if appropriate | |
184 | if(option ==kFillDigitsOnly || option ==kFillAll) | |
185 | { | |
186 | for(Int_t k=0; k<numDigits; k++) | |
187 | { | |
188 | myDigit = fInputPointer->GetDigit(k); | |
189 | if (fDebug>1) Info("FillUnitArray","getting digits %i %i numdigits",k,numDigits ); | |
190 | Int_t towerID = myDigit->GetId(); | |
191 | Int_t amplitude = myDigit->GetAmp(); //Gets the integer valued amplitude of the digit | |
192 | Float_t amp = (Float_t)amplitude; //Need to typecast to Float_t before doing real energy conversion | |
193 | Float_t digitEnergy = amp/10000000.0; //Factor of 10 million needed to convert! | |
194 | Float_t unitEnergy = fUnit[towerID-1].GetUnitEnergy() + digitEnergy; | |
195 | fUnit[towerID-1].SetUnitEnergy(unitEnergy); | |
196 | ||
197 | }//end digits loop | |
198 | }//end digits condition | |
199 | ||
200 | //Set all unit flags, Eta, Phi | |
201 | for(Int_t i=0; i<fNumUnits; i++) | |
202 | { | |
203 | if (fDebug>1) Info("FillUnitArray","Setting all units outside jets"); | |
204 | fUnit[i].SetUnitFlag(kOutJet); //Set all units to be outside a jet initially | |
205 | fUnit[i].SetUnitID(i+1); | |
206 | Float_t eta; | |
207 | Float_t phi; | |
208 | geom->EtaPhiFromIndex(fUnit[i].GetUnitID(), eta, phi); | |
209 | fUnit[i].SetUnitEta(eta); | |
210 | fUnit[i].SetUnitPhi(phi*TMath::Pi()/180.0); | |
211 | // if(i>13000) cout<<"!!!!!!!!!!!!!!!!!For unit0, eta="<<eta<<" and phi="<<phi*TMath::Pi()/180.0<<" and ID="<<fUnit[i].GetUnitID()<<endl; | |
212 | // 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; | |
213 | }//end loop over all units in array (same as all towers in EMCAL) | |
214 | } | |
215 | ||
216 | ||
217 | void AliEMCALJetFinderAlgoUA1::Sort(AliEMCALJetFinderAlgoUA1Unit *unit, Int_t length) | |
218 | { | |
219 | //Calls the recursive quicksort method to sort unit objects in decending order of Energy | |
220 | if (fDebug>1) Info("Sort","Sorting Unit objects"); | |
221 | QS(unit, 0, length-1); | |
222 | } | |
223 | ||
224 | ||
225 | void AliEMCALJetFinderAlgoUA1::QS(AliEMCALJetFinderAlgoUA1Unit *unit, Int_t left, Int_t right) | |
226 | { | |
227 | //Sorts the AliEMCALJetFinderAlgoUA1Unit objects in decending order of Energy | |
228 | if (fDebug>111) Info("QS","QuickSorting Unit objects"); | |
229 | ||
230 | Int_t i; | |
231 | Int_t j; | |
232 | AliEMCALJetFinderAlgoUA1Unit unitFirst; | |
233 | AliEMCALJetFinderAlgoUA1Unit unitSecond; | |
234 | ||
235 | i = left; | |
236 | j = right; | |
237 | unitFirst = unit[(left+right)/2]; | |
238 | ||
239 | do | |
240 | { | |
241 | while( (unit[i].GetUnitEnergy() > unitFirst.GetUnitEnergy()) && (i < right)) i++; | |
242 | while( (unitFirst.GetUnitEnergy() > unit[j].GetUnitEnergy()) && (j > left)) j--; | |
243 | ||
244 | if(i <= j) | |
245 | { | |
246 | unitSecond = unit[i]; | |
247 | unit[i] = unit[j]; | |
248 | unit[j] = unitSecond; | |
249 | i++; | |
250 | j--; | |
251 | }//end if | |
252 | }while(i <= j); | |
253 | ||
254 | if(left < j) QS(unit, left, j); | |
255 | if(i < right) QS(unit, i, right); | |
256 | } | |
257 | ||
258 | ||
259 | void AliEMCALJetFinderAlgoUA1::FindBG() | |
260 | { | |
261 | //Finds the background energy for the iteration | |
262 | if (fDebug>1) Info("FindBG","Finding Average Background"); | |
263 | ||
264 | fEBGTotal = 0.0; | |
265 | Int_t numCone = 0; | |
266 | ||
267 | //Loop over all unit objects in the array and sum the energy of those not in a jet | |
268 | for(Int_t i=0; i<fNumUnits; i++) | |
269 | { | |
270 | if(fUnit[i].GetUnitFlag() != kInJet) | |
271 | fEBGTotal += fUnit[i].GetUnitEnergy(); | |
272 | else numCone++; | |
273 | }//end for | |
274 | ||
275 | fEBGTotalOld = fEBGTotal; | |
276 | fEBGAve = fEBGTotal / (fNumUnits - numCone); | |
277 | if (fDebug>5) Info("FindBG","Average BG is %f: ",fEBGAve); | |
278 | ||
279 | for(Int_t count=0; count<fNumUnits;count++) | |
280 | { | |
281 | fUnit[count].SetUnitFlag(kOutJet); | |
282 | }//end for | |
283 | } | |
284 | ||
285 | ||
286 | void AliEMCALJetFinderAlgoUA1::FindJetEtaPhi(Int_t counter) | |
287 | { | |
288 | //Finds the eta and phi of the jet axis | |
289 | if (fDebug>1) Info("FindJetEtaPhi","Finding Jet Eta and Phi"); | |
290 | ||
291 | fDEta = fUnit[counter].GetUnitEta() - fEtaInit; | |
292 | fDPhi = fUnit[counter].GetUnitPhi() - fPhiInit; | |
293 | ||
294 | fEnergy = fUnit[counter].GetUnitEnergy() - fEBGAve; | |
295 | fJetEtaSum += fEnergy * fDEta; | |
296 | fJetPhiSum += fEnergy * fDPhi; | |
297 | fJetESum += fEnergy; | |
298 | fJetEta = fEtaInit + (fJetEtaSum / fJetESum); | |
299 | fJetPhi = fPhiInit + (fJetPhiSum / fJetESum); | |
300 | } | |
301 | ||
302 | ||
303 | void AliEMCALJetFinderAlgoUA1::FindJetEnergy() | |
304 | { | |
305 | //Finds the energy of the jet after the final axis has been found | |
306 | if (fDebug>1) Info("FindJetEnergy","Finding Jet Energy"); | |
307 | ||
308 | for(Int_t i=0; i<fNumUnits; i++) | |
309 | { | |
310 | //Loop over all unit objects in the array and find if within cone radius | |
311 | Float_t dEta = fUnit[i].GetUnitEta() - fJetEta; | |
312 | Float_t dPhi = fUnit[i].GetUnitPhi() - fJetPhi; | |
313 | Float_t rad = TMath::Sqrt( (dEta*dEta) + (dPhi*dPhi) ); | |
314 | ||
315 | if(fUnit[i].GetUnitFlag()==kOutJet && rad<= fConeRad) | |
316 | { | |
317 | fUnit[i].SetUnitFlag(kInCurrentJet); | |
318 | Float_t energy = fUnit[i].GetUnitEnergy() - fEBGAve; | |
319 | fJetESum += energy; | |
320 | fJetEtaSum += energy * dEta; | |
321 | fJetPhiSum += energy * dPhi; | |
322 | fNumInCone++; //Increment the number of cells in the jet cone | |
323 | }//end if | |
324 | }//end for | |
325 | } | |
326 | ||
327 | ||
328 | void AliEMCALJetFinderAlgoUA1::StoreJetInfo() | |
329 | { | |
330 | //Stores the resulting jet information in appropriate storage structure (TO BE DECIDED!!!!) | |
331 | if (fDebug>1) Info("StoreJetInfo","Storing Jet Information"); | |
332 | ||
333 | //Store: | |
334 | //fJetESum is the final jet energy (background has been subtracted) | |
335 | //fJetEta is the final jet Eta | |
336 | //fJetPhi is the final jet Phi | |
337 | //fNumInCone is the final number of cells included in the jet cone | |
338 | //fEtaInit is the eta of the initiator cell | |
339 | //fPhiInit is the phi of the initiator cell | |
340 | fJet.SetEnergy(fJetESum); | |
341 | fJet.SetEta(fJetEta); | |
342 | fJet.SetPhi(fJetPhi); | |
343 | ||
344 | cout<<"For iteration "<<fNumIter <<" and Jet number " <<fNumJets <<endl; | |
345 | cout<<"The jet energy is: " <<fJetESum <<endl; | |
346 | cout<<"The jet eta is ---->" <<fJetEta <<endl; | |
347 | cout<<"The jet phi is ---->" <<fJetPhi <<endl; | |
348 | ||
349 | Int_t numberTracks = fInputPointer->GetNTracks(); | |
350 | TParticle *myP; | |
351 | Int_t numTracksInCone = 0; | |
352 | ||
353 | for(Int_t counter=0; counter<numberTracks; counter++) | |
354 | { | |
355 | myP = fInputPointer->GetTrack(counter); | |
356 | Float_t eta = myP->Eta(); | |
357 | Float_t phi = myP->Phi(); | |
358 | Float_t deta = fJetEta-eta; | |
359 | Float_t dphi = fJetPhi -phi; | |
360 | Float_t rad = TMath::Sqrt( (deta*deta) + (dphi*dphi)); | |
361 | if(rad<=fConeRad) numTracksInCone++; | |
362 | }//end for | |
363 | ||
364 | Float_t *pTArray = new Float_t[numTracksInCone]; | |
365 | Float_t *etaArray = new Float_t[numTracksInCone]; | |
366 | Float_t *phiArray = new Float_t[numTracksInCone]; | |
367 | Int_t *pdgArray = new Int_t[numTracksInCone]; | |
368 | Int_t index = 0; | |
369 | ||
370 | for(Int_t counter2=0; counter2<numberTracks; counter2++) | |
371 | { | |
372 | myP = fInputPointer->GetTrack(counter2); | |
373 | Float_t eta = myP->Eta(); | |
374 | Float_t phi = myP->Phi(); | |
375 | Float_t deta = fJetEta-eta; | |
376 | Float_t dphi = fJetPhi -phi; | |
377 | Float_t rad = TMath::Sqrt( (deta*deta) + (dphi*dphi)); | |
378 | if(rad<=fConeRad) | |
379 | { | |
380 | pTArray[index] = myP->Pt(); | |
381 | etaArray[index] = eta; | |
382 | phiArray[index] = phi; | |
383 | pdgArray[index] = myP->GetPdgCode(); | |
384 | index++; | |
385 | }//end if | |
386 | }//end for | |
387 | ||
388 | fJet.SetTrackList(numTracksInCone,pTArray, etaArray, phiArray, pdgArray); | |
389 | fOutputObject.AddJet(&fJet); | |
390 | delete[] pTArray; | |
391 | delete[] etaArray; | |
392 | delete[] phiArray; | |
393 | delete[] pdgArray; | |
394 | } | |
395 | ||
396 | ||
397 | void AliEMCALJetFinderAlgoUA1::FindJets() | |
398 | { | |
399 | //Runs the complete UA1 JetFinding algorithm to find jets! | |
400 | if (fDebug>1) Info("FindJets","Starting Jet Finding!!!"); | |
401 | ||
402 | //If the array of JetFinderUnit objects has not been initialised then initialise with default settings | |
403 | if(!fArrayInitialised) | |
404 | { | |
405 | InitUnitArray(); | |
406 | FillUnitArray(kFillAll); | |
407 | }//end if | |
408 | if (fDebug>1) Info("FindJets","Unit array filled"); | |
409 | ||
410 | //Step 1. Sort the array in descending order of Energy | |
411 | Sort(fUnit,fNumUnits); | |
412 | ||
413 | //Step 2. Set the number of iterations and Number of jets found to zero to start | |
414 | fNumIter = 0; | |
415 | fNumJets = 0; | |
416 | ||
417 | //Step 3. Begin the iteration loop to find jets | |
418 | //Need to iterate the algorithm while number of iterations<2 OR number of iterations<10 AND | |
419 | //the value of the average background has changed more than specified amount | |
420 | //Min iterations = 2, Max iterations = 10 | |
421 | //while(fNumIter<2 || (fNumIter <10 && ( (fEBGTotal-fEBGTotalOld)/fEBGTotal) > fBGMaxMove) ) | |
422 | ||
423 | while(fNumIter<2 || (fNumIter <10 && ( fEBGTotal-fEBGTotalOld) > fEBGTotal*fBGMaxMove) ) | |
424 | { | |
425 | if (fDebug>1) Info("FindJets","Starting BIG iteration ---> %i",fNumIter); | |
426 | ||
427 | //Step 4. Find the value of the average background energy | |
428 | FindBG(); | |
429 | fOutputObject.Reset(kResetJets); //Reset output object to store info for new iteration | |
430 | fNumJets=0; | |
431 | ||
432 | //Loop over the array of unit objects and flag those with energy below MinCellEt | |
433 | Int_t numbelow = 0; | |
434 | for(Int_t j=0; j<fNumUnits; j++) | |
435 | { | |
436 | if( (fUnit[j].GetUnitEnergy()-fEBGAve) < fEtMin) | |
437 | { | |
438 | fUnit[j].SetUnitFlag(kBelowMinEt); | |
439 | numbelow++; | |
440 | // if (fDebug>1) Info("FindJets","Below Min Et: %i",j); | |
441 | }//end if | |
442 | }//end for | |
443 | ||
444 | //Do quick check if there are no jets upfront | |
445 | if(fUnit[0].GetUnitFlag() == kBelowMinEt) | |
446 | { | |
447 | cout <<"There are no jets for this event!" <<endl; | |
448 | break; | |
449 | }//end if | |
450 | ||
451 | //Step 5. Begin with the first jet candidate cell (JET SEED LOOP) | |
452 | if (fDebug>5) Info("FindJets","Beginning JET SEED LOOP"); | |
453 | for(Int_t count=0; count<fNumUnits; count++) | |
454 | { | |
455 | ||
456 | //CHECK CONDITION HERE _ NOT SURE IF SHOULD MAYBE BE: GetUnitEnergy()-fEBGAve >fESeed????????????????????????????? | |
457 | if(fUnit[count].GetUnitEnergy()>=fESeed && fUnit[count].GetUnitFlag()==kOutJet) | |
458 | { | |
459 | fEnergy = fUnit[count].GetUnitEnergy() - fEBGAve; | |
460 | fJetEta = fUnit[count].GetUnitEta(); | |
461 | fJetPhi = fUnit[count].GetUnitPhi(); | |
462 | if (fDebug>5) Info("FindJets","Inside first candidate jet seed loop for time : %i", count); | |
463 | if (fDebug>5) Info("FindJets","Found candidate energy %f ",fEnergy); | |
464 | if (fDebug>5) Info("FindJets","Found candidate eta %f ", fJetEta); | |
465 | if (fDebug>5) Info("FindJets","Found candidate phi %f ", fJetPhi); | |
466 | ||
467 | fEtaInit = fJetEta; | |
468 | fPhiInit = fJetPhi; | |
469 | fEtaB = fJetEta; | |
470 | fPhiB = fJetPhi; | |
471 | fJetESum = 0.0; | |
472 | fJetEtaSum = 0.0; | |
473 | fJetPhiSum = 0.0; | |
474 | ||
475 | //Step 6. Find Jet Eta and Phi | |
476 | //Loop over all units in the array to find the ones in the jet cone and determine contrib to Jet eta, phi | |
477 | for(Int_t count1=0; count1<fNumUnits; count1++) | |
478 | //for(Int_t count1=fNumUnits-1; count1>=0; count1--) //Alternative method (will not break on first loop) | |
479 | { | |
480 | if(fUnit[count1].GetUnitFlag() == kOutJet) | |
481 | { | |
482 | fDEta = fUnit[count1].GetUnitEta() - fJetEta; | |
483 | fDPhi = fUnit[count1].GetUnitPhi() - fJetPhi; | |
484 | fRad = TMath::Sqrt( (fDEta*fDEta) + (fDPhi*fDPhi) ); | |
485 | if(fRad <= fConeRad) | |
486 | { | |
487 | FindJetEtaPhi(count1); | |
488 | ||
489 | ||
490 | //check if cone moves less than minimum allowed move from previous cone | |
491 | if (fDebug>10) Info("FindJets","Checking if cone move small enough"); | |
492 | fDistP = TMath::Sqrt( ((fJetEta-fEtaB)*(fJetEta-fEtaB)) + ((fJetPhi-fPhiB)*(fJetPhi-fPhiB)) ); | |
493 | if(fDistP <= fMinMove) break; | |
494 | ||
495 | ||
496 | //check if cone moves more than max allowed from initiator cell | |
497 | if (fDebug>10) Info("FindJets","Checking if cone move too large"); | |
498 | fDistI = TMath::Sqrt( ((fJetEtaSum/fJetESum)*(fJetEtaSum/fJetESum)) + ((fJetPhiSum/fJetESum)* | |
499 | (fJetPhiSum/fJetESum))); | |
500 | if(fDistI >= fMaxMove) | |
501 | { | |
502 | fJetEta = fEtaB; | |
503 | fJetPhi = fPhiB; | |
504 | break; | |
505 | }//end if | |
506 | ||
507 | fEtaB = fJetEta; | |
508 | fPhiB = fJetPhi; | |
509 | }//end if | |
510 | }//end if | |
511 | }//end for (Jet Eta, Phi LOOP) | |
512 | ||
513 | //Step 7. Find the Jet Energy | |
514 | if (fDebug>1) Info("FindJets","Looking for Jet energy"); | |
515 | fJetESum = 0.0; | |
516 | fJetEtaSum = 0.0; | |
517 | fJetPhiSum = 0.0; | |
518 | fNumInCone = 0; | |
519 | FindJetEnergy(); | |
520 | ||
521 | //Step 8. Check if the jet is a valid jet | |
522 | //Check if cluster energy is above Min allowed to be a jet | |
523 | //DID NOT DO THE COSH COMPARISON HERE -> NEED TO CHECK WHICH COMPARISON IS BEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | |
524 | if (fDebug>5) Info("FindJets","Checking cluster is valid jet"); | |
525 | if(fJetESum < fJetEMin) | |
526 | { | |
527 | for(Int_t count2=0; count2<fNumUnits; count2++) | |
528 | { | |
529 | if(fUnit[count2].GetUnitFlag()==kInCurrentJet || fUnit[count2].GetUnitFlag()==kOutJet) | |
530 | fUnit[count2].SetUnitFlag(kOutJet); | |
531 | }//end for | |
532 | if (fDebug>10) Info("FindJets","NOT a valid jet cell"); | |
533 | }else | |
534 | { | |
535 | for(Int_t count2=0; count2<fNumUnits; count2++) | |
536 | { | |
537 | if(fUnit[count2].GetUnitFlag()==kInCurrentJet) | |
538 | { | |
539 | // cout<<"Setting unit #"<<count2 <<" to be officially in a jet!"<<endl; | |
540 | fUnit[count2].SetUnitFlag(kInJet); | |
541 | } | |
542 | }//end for | |
543 | ||
544 | //NEED TO CHECK FINAL WEIRD ITERATION OF ETA AND PHI CHANGES!!!!!!!!! | |
545 | fJetPhi += fJetPhiSum/fJetESum; //CHECK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | |
546 | fJetEta += fJetEtaSum/fJetESum; //CHECK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | |
547 | ||
548 | fNumJets++; //Incrementing number of jets found | |
549 | StoreJetInfo(); //Storing jet info | |
550 | }//end if (check cluster above Min Jet Energy) | |
551 | ||
552 | }//end if (Jet Seed condition) | |
553 | }//end (JET SEED LOOP) | |
554 | ||
555 | if (fDebug>5) Info("FindJets","End of BIG iteration number %i",fNumIter); | |
556 | // this->Dump(); | |
557 | fNumIter++; | |
558 | }//end 10 iteration WHILE LOOP | |
559 | } | |
560 | ||
561 | ||
562 | ||
563 | ||
564 | ||
565 | ||
566 | ||
567 | ||
568 | ||
569 | ||
570 |