Add data members for jet background, enable filling (Leticia Mendez)
[u/mrichter/AliRoot.git] / JETAN / AliJetBkg.cxx
CommitLineData
50c7d9f7 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
16#include <Riostream.h>
17#include <TChain.h>
18#include <TFile.h>
19#include <TList.h>
20#include <TArrayF.h>
21#include <TClonesArray.h>
22#include <TF1.h>
23#include <TString.h>
24
25#include "AliJetHeader.h"
26#include "AliJetReader.h"
27#include "AliJetReaderHeader.h"
28#include "AliFastJetFinder.h"
29#include "AliFastJetHeaderV1.h"
30#include "AliJetReaderHeader.h"
31#include "AliJetReader.h"
32#include "AliJetUnitArray.h"
33#include "AliFastJetInput.h"
34#include "AliESDEvent.h"
35
36
37#include "fastjet/PseudoJet.hh"
38#include "fastjet/ClusterSequenceArea.hh"
39#include "fastjet/AreaDefinition.hh"
40#include "fastjet/JetDefinition.hh"
41// get info on how fastjet was configured
42#include "fastjet/config.h"
43
44#ifdef ENABLE_PLUGIN_SISCONE
45#include "fastjet/SISConePlugin.hh"
46#endif
47
48#include<sstream> // needed for internal io
49#include<vector>
50#include <cmath>
51
52using namespace std;
53#include "AliJetBkg.h"
54
55ClassImp(AliJetBkg)
56
57////////////////////////////////////////////////////////////////////////
58
59AliJetBkg::AliJetBkg():
856618e7 60 TObject(),
61 fReader(0),
62 fHeader(0),
63 fInputFJ(0)
50c7d9f7 64{
65 // Default constructor
66
67}
68//______________________________________________________________________
69AliJetBkg::AliJetBkg(const AliJetBkg& input):
856618e7 70 TObject(input),
50c7d9f7 71 fReader(input.fReader),
72 fHeader(input.fHeader),
856618e7 73 fInputFJ(input.fInputFJ)
50c7d9f7 74{
75 // copy constructor
76
77}
78//______________________________________________________________________
79AliJetBkg& AliJetBkg::operator=(const AliJetBkg& source){
80 // Assignment operator.
81 this->~AliJetBkg();
82 new(this) AliJetBkg(source);
83 return *this;
84
85}
294056ab 86
87
88//___________________________________________________________________
89 void AliJetBkg::BkgFastJetb(Double_t& rho,Double_t& sigma,
90Double_t& meanarea){
91
92 cout<<"=============== AliJetBkg::BkgFastJetb() =========== "<<endl;
93 vector<fastjet::PseudoJet> inputParticles=fInputFJ->GetInputParticles();
94
95 //cout<<"printing inputParticles for BKG "<<inputParticles.size()<<endl;
96
97
98
99 AliFastJetHeaderV1 *header = (AliFastJetHeaderV1*)fHeader;
100 double rParamBkg = header->GetRparamBkg(); //Radius for background calculation
101
102 Double_t medianb,sigmab,meanareab;
103 CalcRhob(medianb,sigmab,meanareab,inputParticles,rParamBkg,"All");
104 rho=medianb;
105 sigma=sigmab;
106 meanarea=meanareab;
107
108}
109//_________________________________________________________________
110
111 void AliJetBkg::BkgFastJetWoHardest(Double_t& rho,Double_t& sigma,
112Double_t& meanarea){
113
114 cout<<"=============== AliJetBkg::BkgWoHardest() =========== "<<endl;
115 vector<fastjet::PseudoJet> inputParticles=fInputFJ->GetInputParticles();
116
117 //cout<<"printing inputParticles for BKG "<<inputParticles.size()<<endl;
118
119
120
121 AliFastJetHeaderV1 *header = (AliFastJetHeaderV1*)fHeader;
122 double rParamBkg = header->GetRparamBkg(); //Radius for background calculation
123 Double_t medianb,sigmab,meanareab;
124 CalcRhoWoHardest(medianb,sigmab,meanareab,inputParticles,rParamBkg,"All");
125 rho=medianb;
126 sigma=sigmab;
127 meanarea=meanareab;
128
129 }
130
131//____________________________________________________________________
132
133 void AliJetBkg::CalcRhob(Double_t& median,Double_t&
134sigma,Double_t&
135meanarea,vector<fastjet::PseudoJet> inputParticles,Double_t
136rParamBkg,TString method){
137 //calculate rho using the fastjet method
138
139 AliFastJetHeaderV1 *header = (AliFastJetHeaderV1*)fHeader;
140 Bool_t debug = header->GetDebug(); // debug option
141
142 fastjet::Strategy strategy = header->GetStrategy();
143 fastjet::RecombinationScheme recombScheme = header->GetRecombScheme();
144 fastjet::JetAlgorithm algorithm = header->GetAlgorithm();
145 fastjet::JetDefinition jetDef(algorithm, rParamBkg, recombScheme, strategy);
146
147 // create an object that specifies how we to define the area
148 fastjet::AreaDefinition areaDef;
149 double ghostEtamax = header->GetGhostEtaMax();
150 double ghostArea = header->GetGhostArea();
151 int activeAreaRepeats = header->GetActiveAreaRepeats();
152
153 // now create the object that holds info about ghosts
154
155
156
157 fastjet::GhostedAreaSpec ghost_spec(ghostEtamax, activeAreaRepeats, ghostArea);
158 // and from that get an area definition
159 fastjet::AreaType areaType = header->GetAreaType();
160 areaDef = fastjet::AreaDefinition(areaType,ghost_spec);
161
162 //fastjet::ClusterSequenceArea clust_seq(inputParticles, jetDef);
163 fastjet::ClusterSequenceArea clust_seq(inputParticles, jetDef,areaDef);
164 TString comment = "Running FastJet algorithm for BKG calculation with the following setup. ";
165 comment+= "Jet definition: ";
166 comment+= TString(jetDef.description());
167 // comment+= ". Area definition: ";
168 //comment+= TString(areaDef.description());
169 comment+= ". Strategy adopted by FastJet: ";
170 comment+= TString(clust_seq.strategy_string());
171 header->SetComment(comment);
172 if(debug){
173 cout << "--------------------------------------------------------" << endl;
174 cout << comment << endl;
175 cout << "--------------------------------------------------------" << endl;
176 }
177
178 vector<fastjet::PseudoJet> inclusiveJets = clust_seq.inclusive_jets(0.);
179 vector<fastjet::PseudoJet> jets = sorted_by_pt(inclusiveJets);
180
181
182 //cout<<"# of BKG jets = "<<jets.size()<<endl;
183 // for (size_t j = 0; j < jets.size(); j++) { // loop for jets
184 //printf("BKG Jet found %5d %9.5f %8.5f %10.3f %4.4f
185 //\n",(Int_t)j,jets[j].rap(),jets[j].phi(),jets[j].perp(),
186 //clust_seq.area(jets[j]));
187 // }
188
189
190 double phiMin = 0, phiMax = 0, rapMin = 0, rapMax = 0;
191
192
193 phiMin = 0;
194 phiMax = 2*TMath::Pi();
195
196 rapMax = ghostEtamax - rParamBkg;
197 rapMin = - ghostEtamax + rParamBkg;
198
199
200 fastjet::RangeDefinition range(rapMin, rapMax, phiMin, phiMax);
201
202
203 double medianb, sigmab, meanareab;
204 clust_seq.get_median_rho_and_sigma(inclusiveJets, range, false, medianb, sigmab, meanareab, false);
205 median=medianb;
206 sigma=sigmab;
207 meanarea=meanareab;
208
209
210 }
211
212//____________________________________________________________________
213
214
215 void AliJetBkg::CalcRhoWoHardest(Double_t& median,Double_t&
216sigma,Double_t&
217meanarea,vector<fastjet::PseudoJet> inputParticles,Double_t
218rParamBkg,TString method){
219 //calculate rho using the fastjet method
220
221 AliFastJetHeaderV1 *header = (AliFastJetHeaderV1*)fHeader;
222 Bool_t debug = header->GetDebug(); // debug option
223
224 fastjet::Strategy strategy = header->GetStrategy();
225 fastjet::RecombinationScheme recombScheme = header->GetRecombScheme();
226 fastjet::JetAlgorithm algorithm = header->GetAlgorithm();
227 fastjet::JetDefinition jetDef(algorithm, rParamBkg, recombScheme, strategy);
228
229 // create an object that specifies how we to define the area
230 fastjet::AreaDefinition areaDef;
231 double ghostEtamax = header->GetGhostEtaMax();
232 double ghostArea = header->GetGhostArea();
233 int activeAreaRepeats = header->GetActiveAreaRepeats();
234
235 // now create the object that holds info about ghosts
236
237
238
239 fastjet::GhostedAreaSpec ghost_spec(ghostEtamax, activeAreaRepeats, ghostArea);
240 // and from that get an area definition
241 fastjet::AreaType areaType = header->GetAreaType();
242 areaDef = fastjet::AreaDefinition(areaType,ghost_spec);
243 //cout<<"rParamBkg="<<rParamBkg<<" ghostEtamax="<<ghostEtamax<<" ghostArea="<<ghostArea<<" areadef="<<TString(areaDef.description())<<endl;
244 //fastjet::ClusterSequenceArea clust_seq(inputParticles, jetDef);
245 fastjet::ClusterSequenceArea clust_seq(inputParticles,jetDef,areaDef);
246 TString comment = "Running FastJet algorithm for BKG calculation with the following setup. ";
247 comment+= "Jet definition: ";
248 comment+= TString(jetDef.description());
249 // comment+= ". Area definition: ";
250 //comment+= TString(areaDef.description());
251 comment+= ". Strategy adopted by FastJet: ";
252 comment+= TString(clust_seq.strategy_string());
253 header->SetComment(comment);
254 if(debug){
255 cout << "--------------------------------------------------------" << endl;
256 cout << comment << endl;
257 cout << "--------------------------------------------------------" << endl;
258 }
259
260 vector<fastjet::PseudoJet> inclusiveJets = clust_seq.inclusive_jets(0.);
261 vector<fastjet::PseudoJet> jets = sorted_by_pt(inclusiveJets);
262 vector<fastjet::PseudoJet> jets2=sorted_by_pt(inclusiveJets);
263 if(jets2.size()>=2) jets2.erase(jets2.begin(),jets2.begin()+1);
264
265
266
267 double phiMin = 0, phiMax = 0, rapMin = 0, rapMax = 0;
268
269
270 phiMin = 0;
271 phiMax = 2*TMath::Pi();
272
273 rapMax = ghostEtamax - rParamBkg;
274 rapMin = - ghostEtamax + rParamBkg;
275
276
277 fastjet::RangeDefinition range(rapMin, rapMax, phiMin, phiMax);
278
279
280 double medianb, sigmab, meanareab;
281 clust_seq.get_median_rho_and_sigma(jets2, range, false, medianb, sigmab,
282meanareab, false);
283 median=medianb;
284 sigma=sigmab;
285 meanarea=meanareab;
286
287
288 }
289
290
50c7d9f7 291//___________________________________________________________________
292Float_t AliJetBkg::BkgFastJet(){
293
967c266c 294 AliFastJetHeaderV1 *header = (AliFastJetHeaderV1*)fHeader;
295 Bool_t debug = header->GetDebug(); // debug option
296
297 if(debug)cout<<"=============== AliJetBkg::BkgFastJet() =========== "<<endl;
50c7d9f7 298 vector<fastjet::PseudoJet> inputParticles=fInputFJ->GetInputParticles();
299
967c266c 300 if(debug)cout<<"printing inputParticles for BKG "<<inputParticles.size()<<endl;
50c7d9f7 301
302 for(UInt_t i=0;i<inputParticles.size();i++){
303 // cout<<" "<<inputParticles[i].px()<<" "<<inputParticles[i].py()<<" "<<inputParticles[i].pz()<<endl;
304
305 }
306
50c7d9f7 307 double rParamBkg = header->GetRparamBkg(); //Radius for background calculation
308 Double_t rho=CalcRho(inputParticles,rParamBkg,"All");
967c266c 309 if(debug)cout<<"-------- rho (from all part)="<<rho<<endl;
50c7d9f7 310 return rho;
311
312}
313//___________________________________________________________________
314Float_t AliJetBkg::BkgChargedFastJet(){
315
967c266c 316 AliFastJetHeaderV1 *header = (AliFastJetHeaderV1*)fHeader;
317 Bool_t debug = header->GetDebug(); // debug option
318
319 if(debug)cout<<"=============== AliJetBkg::BkgChargedFastJet() =========== "<<endl;
50c7d9f7 320
321 vector<fastjet::PseudoJet> inputParticlesCharged=fInputFJ->GetInputParticlesCh();
322
967c266c 323 if(debug)cout<<"printing CHARGED inputParticles for BKG "<<inputParticlesCharged.size()<<endl;
50c7d9f7 324
325 for(UInt_t i=0;i<inputParticlesCharged.size();i++){
326 // cout<<" "<<inputParticlesCharged[i].px()<<" "<<inputParticlesCharged[i].py()<<" "<<inputParticlesCharged[i].pz()<<endl;
327
328 }
967c266c 329
50c7d9f7 330 double rParam = header->GetRparam();
331
332 Double_t rho=CalcRho(inputParticlesCharged,rParam,"Charg");
333
334 cout<<"-------- rho (from CHARGED part)="<<rho<<endl;
335 return rho;
336}
337
338
339
340Float_t AliJetBkg::BkgStat()
341{
342 //background subtraction using statistical method
343
967c266c 344 AliFastJetHeaderV1 *header = (AliFastJetHeaderV1*)fHeader;
345 Bool_t debug = header->GetDebug(); // debug option
346
347 if(debug)cout<<"==============AliJetBkg::BkgStat()============="<<endl;
50c7d9f7 348 //TO BE IMPLEMENTED
349 // Int_t nTracks= fReader->GetESD()->GetNumberOfTracks();
350 Int_t nTracks= 0;
351 TF1 fun("fun",BkgFunction,0,800,1);
352 Double_t enTot=fun.Eval(nTracks);
353 Double_t accEMCal=2*0.7*110./180*TMath::Pi();//2.68 area of EMCal
354 return enTot/accEMCal;
355
356}
50c7d9f7 357
358////////////////////////////////////////////////////////////////////////
359Float_t AliJetBkg::BkgFastJetCone(TClonesArray* fAODJets)
360{
361
362 // Cone background subtraction method applied on the fastjet: REmove the particles of the
363 // two largest jets with the given R from the estimation of new rho.
50c7d9f7 364
365 AliFastJetHeaderV1 *header = (AliFastJetHeaderV1*)fHeader;
967c266c 366 Bool_t debug = header->GetDebug(); // debug option
367
368 if(debug)cout<<"==============AliJetBkg::SubtractFastJetBackgCone()============="<<endl;
369
50c7d9f7 370 Float_t rc= header->GetRparam();
371
372 //Hard wired Calorimeter area (get it later from the AliJetReaderHeader.h)
373 Double_t accEMCal=2*0.7*110./180*TMath::Pi();//2.68 area of EMCal
374
375 Int_t nJ=fAODJets->GetEntries(); //this must be the # of jets...
967c266c 376 if(debug)cout<<"nJets: "<<nJ<<endl;
50c7d9f7 377
378
379 //begin unit array
380 TClonesArray* fUnit = fReader->GetUnitArray();
381 if(fUnit == 0) { cout << "Could not get the momentum array" << endl; return -99; }
382
383 Int_t nIn = fUnit->GetEntries();
384 if(nIn == 0) { cout << "entries = 0 ; Event empty !!!" << endl ; return -99; }
385
386 // Information extracted from fUnitArray
387 // load input vectors and calculate total energy in array
388 Float_t pt,eta,phi;
389 Float_t jeteta = 0,jetphi = 0,jeteta1 = 0, jetphi1 = 0;
390 Float_t rhoback=0.0;
391
392 Float_t ptallback=0.0; //particles without the jet
393 Float_t restarea=accEMCal; //initial area set
394 Bool_t acc=0;
395 Bool_t acc1=0;
396 Float_t rCone=0.4;
397
398 if(nJ==1) {
399 AliAODJet *jettmp = dynamic_cast<AliAODJet*>(fAODJets->At(0));
400 jeteta=jettmp->Eta();
401 jetphi=jettmp->Phi();
402 acc=EmcalAcceptance(jeteta,jetphi,rCone);
403 if(acc==1)restarea= accEMCal-TMath::Pi()*rc*rc;
967c266c 404 if(debug)cout<<" acc "<<acc<<endl;
50c7d9f7 405 }
406
407
408 if(nJ>=2) {
409 AliAODJet *jettmp = dynamic_cast<AliAODJet*>(fAODJets->At(0));
410 AliAODJet *jettmp1 = dynamic_cast<AliAODJet*>(fAODJets->At(1));
411 jeteta=jettmp->Eta();
412 jetphi=jettmp->Phi();
413 jeteta1=jettmp1->Eta();
414 jetphi1=jettmp1->Phi();
415 acc=EmcalAcceptance(jeteta,jetphi,rCone);
416 acc1=EmcalAcceptance(jeteta1,jetphi1,rCone);
417 if(acc1==1 && acc==1)restarea= accEMCal-2*TMath::Pi()*rc*rc;
418 if(acc1==1 && acc==0)restarea= accEMCal-TMath::Pi()*rc*rc;
419 if(acc1==0 && acc==1)restarea= accEMCal-TMath::Pi()*rc*rc;
420
967c266c 421 if(debug)cout<<" acc1="<<acc<<" acc2="<<acc1<<" restarea="<<restarea<<endl;
50c7d9f7 422
423 }
424
425 // cout<<" nIn = "<<nIn<<endl;
426 Float_t sumpt=0;
427 for(Int_t i=0; i<nIn; i++)
428 { //Unit Array Loop
429 AliJetUnitArray *uArray = (AliJetUnitArray*)fUnit->At(i);
430 if(uArray->GetUnitEnergy()>0.){
431
432 pt = uArray->GetUnitEnergy();
433 eta = uArray->GetUnitEta();
434 phi = uArray->GetUnitPhi();
435
436 //cout<<"test emcal acceptance for particles "<<EmcalAcceptance(eta,phi,0.)<<endl;
437
438 Float_t deta=0.0, dphi=0.0, dr=100.0;
439 Float_t deta1=0.0, dphi1=0.0, dr1=100.0;
440
441 //cout<<i<<" pt="<<pt<<" eta="<<eta<<" phi="<<phi<<endl;
442 if(phi>1.396 && phi<3.316 && eta>-0.7 && eta<0.7){
443 sumpt+=pt;
444 //if(i<30)cout<<i<<" pt unit = "<<pt<<endl;
445
446 if(nJ==1 && acc==1) {
447 deta = eta - jeteta;
448 dphi = phi - jetphi;
449 if (dphi < -TMath::Pi()) dphi= -dphi - 2.0 * TMath::Pi();
450 if (dphi > TMath::Pi()) dphi = 2.0 * TMath::Pi() - dphi;
451 dr = TMath::Sqrt(deta * deta + dphi * dphi);
452 if(dr<=rc)sumpt-=pt;
453 }
454
455 if(nJ>=2) {
456 if(acc==1){
457 deta = eta - jeteta;
458 dphi = phi - jetphi;
459 if (dphi < -TMath::Pi()) dphi= -dphi - 2.0 * TMath::Pi();
460 if (dphi > TMath::Pi()) dphi = 2.0 * TMath::Pi() - dphi;
461 dr = TMath::Sqrt(deta * deta + dphi * dphi);
462 if(dr<=rc)sumpt-=pt;
463 }
464 if(acc1==1){
465 deta1 = eta - jeteta1;
466 dphi1 = phi - jetphi1;
467 if (dphi1 < -TMath::Pi()) dphi1= -dphi1 - 2.0 * TMath::Pi();
468 if (dphi1 > TMath::Pi()) dphi1 = 2.0 * TMath::Pi() - dphi1;
469 dr1 = TMath::Sqrt(deta1 * deta1 + dphi1 * dphi1);
470 if(dr1<=rc)sumpt-=pt;
471 }
472
473 }
474
475 if(dr >= rc && dr1 >=rc) {
476 // particles outside both cones
477
478 //cout<<" out of the cone "<<dr<<" "<<deta<<" deltaeta "<<dphi<<" dphi "<<i<<" particle "<<endl;
479 //cout<<" out of the cone "<<dr1<<" "<<deta1<<" deltaeta1 "<<dphi1<<" dphi1 "<<i<<" particle "<<endl;
480 ptallback+=pt;
481 }
482 }
483 //cout<<" ipart "<<ipart<<" rhointegral "<<rhoback <<endl;
484 }
485 } // End loop on UnitArray
486
967c266c 487 if(debug)cout<<"total area left "<<restarea<<endl;
488 if(debug)cout<<"sumpt="<<sumpt<<endl;
50c7d9f7 489 // if(acc==1 || acc1==1) rhoback= ptallback/restarea;
490 //else rhoback=ptallback;
491
492 rhoback= ptallback/restarea;
967c266c 493 if(debug)cout<<"rhoback "<<rhoback<<" "<<nJ<<" "<<endl;
50c7d9f7 494
495 return rhoback;
496
497}
498
499
500Double_t AliJetBkg::CalcRho(vector<fastjet::PseudoJet> inputParticles,Double_t rParamBkg,TString method){
501 //calculate rho using the fastjet method
502
503 AliFastJetHeaderV1 *header = (AliFastJetHeaderV1*)fHeader;
504 Bool_t debug = header->GetDebug(); // debug option
505
506 fastjet::Strategy strategy = header->GetStrategy();
507 fastjet::RecombinationScheme recombScheme = header->GetRecombScheme();
508 fastjet::JetAlgorithm algorithm = header->GetAlgorithm();
509 fastjet::JetDefinition jetDef(algorithm, rParamBkg, recombScheme, strategy);
510
511 // create an object that specifies how we to define the area
512 fastjet::AreaDefinition areaDef;
513 double ghostEtamax = header->GetGhostEtaMax();
514 double ghostArea = header->GetGhostArea();
515 int activeAreaRepeats = header->GetActiveAreaRepeats();
516
517 // now create the object that holds info about ghosts
518
519 if (method.Contains("Charg"))ghostEtamax=0.9;
520
521 fastjet::GhostedAreaSpec ghost_spec(ghostEtamax, activeAreaRepeats, ghostArea);
522 // and from that get an area definition
523 fastjet::AreaType areaType = header->GetAreaType();
524 areaDef = fastjet::AreaDefinition(areaType,ghost_spec);
967c266c 525 if(debug)cout<<"rParamBkg="<<rParamBkg<<" ghostEtamax="<<ghostEtamax<<" ghostArea="<<ghostArea<<" areadef="<<TString(areaDef.description())<<endl;
50c7d9f7 526 //fastjet::ClusterSequenceArea clust_seq(inputParticles, jetDef);
527 fastjet::ClusterSequenceArea clust_seq(inputParticles, jetDef,areaDef);
528 TString comment = "Running FastJet algorithm for BKG calculation with the following setup. ";
529 comment+= "Jet definition: ";
530 comment+= TString(jetDef.description());
531 // comment+= ". Area definition: ";
532 //comment+= TString(areaDef.description());
533 comment+= ". Strategy adopted by FastJet: ";
534 comment+= TString(clust_seq.strategy_string());
535 header->SetComment(comment);
536 if(debug){
537 cout << "--------------------------------------------------------" << endl;
538 cout << comment << endl;
539 cout << "--------------------------------------------------------" << endl;
540 }
541
542 double ptmin = header->GetPtMin();
543 vector<fastjet::PseudoJet> inclusiveJets = clust_seq.inclusive_jets(ptmin);
544 vector<fastjet::PseudoJet> jets = sorted_by_pt(inclusiveJets);
50c7d9f7 545
db2272d5 546 if (debug) {
547 cout<<"# of BKG jets = "<<jets.size()<<endl;
548 for (size_t j = 0; j < jets.size(); j++) { // loop for jets
549 printf("BKG Jet found %5d %9.5f %8.5f %10.3f %4.4f \n",(Int_t)j,jets[j].rap(),jets[j].phi(),jets[j].perp(),clust_seq.area(jets[j]));
550 }
551 }
552
50c7d9f7 553 double phiMin = 0, phiMax = 0, rapMin = 0, rapMax = 0;
554
555 if (method.Contains("All")){
556 phiMin = 80.*TMath::Pi()/180+rParamBkg;
557 phiMax = 190.*TMath::Pi()/180-rParamBkg;
50c7d9f7 558 }
559 if (method.Contains("Charg")){
560 phiMin = 0;
561 phiMax = 2*TMath::Pi();
562 }
563 rapMax = ghostEtamax - rParamBkg;
564 rapMin = - ghostEtamax + rParamBkg;
565
566
567 fastjet::RangeDefinition range(rapMin, rapMax, phiMin, phiMax);
568
569
570 Double_t rho=clust_seq.median_pt_per_unit_area(range);
571 // double median, sigma, meanArea;
572 //clust_seq.get_median_rho_and_sigma(inclusiveJets, range, false, median, sigma, meanArea, true);
573 //fastjet::ActiveAreaSpec area_spec(ghostEtamax,activeAreaRepeats,ghostArea);
574
575 // fastjet::ClusterSequenceActiveArea clust_seq_bkg(inputParticles, jetDef,area_spec);
576
577
967c266c 578 if(debug)cout<<"bkg in R="<<rParamBkg<<" : "<<rho<<" range: Rap="<<rapMin<<","<<rapMax<<" -- phi="<<phiMin<<","<<phiMax<<endl;
50c7d9f7 579 return rho;
580}
581
582Float_t AliJetBkg::EtaToTheta(Float_t arg)
583{
584 // return (180./TMath::Pi())*2.*atan(exp(-arg));
585 return 2.*atan(exp(-arg));
586}
587
588
589Double_t AliJetBkg::BkgFunction(Double_t */*x*/,Double_t */*par*/){
590 //to be implemented--- (pT + Energy in EMCal Acceptance vs Multiplicity)
591 return 1;
592}
593
594
595Bool_t AliJetBkg::EmcalAcceptance(const Float_t eta, const Float_t phi, const Float_t radius){
596
597 Float_t meanPhi=190./180.*TMath::Pi()-110./180.*TMath::Pi()/2;
598 Float_t deltaphi=110./180.*TMath::Pi();
599 Float_t phicut=deltaphi/2.-radius;
600 Float_t etacut=0.7-radius;
601 //cout<<" eta "<<eta<<" phi "<<phi<<endl;
602 //cout<<etacut<<" "<<phicut<<" "<<meanPhi<<" "<<endl;
603 if(TMath::Abs(eta)<etacut && TMath::Abs(phi-meanPhi)<phicut) return 1;
604 else return 0;
605}