3 // analysis task to estimate an event's local energy density
5 // This task is part of the emcal jet framework and should be run in the emcaljet train
6 // The following extensions to an accepted AliVEvent are expected:
7 // - (anti-kt) jets -> necessary if one wants to exclude leading jet contribution to the event plane
8 // - background estimate of rho -> this task estimates modulation, not rho itself
9 // - pico tracks -> a uniform track selection is necessary to estimate the contribution of v_n harmonics
10 // aod's and esd's are handled transparently
11 // The task will estimates a phi-dependent background density rho
12 // which is added to the event as a AliLocalRhoParamter object
14 // Author: Redmer Alexander Bertens, Utrecht Univeristy, Utrecht, Netherlands
15 // rbertens@cern.ch, rbertens@nikhef.nl, r.a.bertens@uu.nl
28 #include <AliAnalysisTask.h>
29 #include <AliAnalysisManager.h>
30 #include <AliCentrality.h>
31 #include <AliVVertex.h>
32 #include <AliESDEvent.h>
33 #include <AliAODEvent.h>
34 #include <AliAODTrack.h>
35 // emcal jet framework includes
36 #include <AliPicoTrack.h>
37 #include <AliEmcalJet.h>
38 #include <AliRhoParameter.h>
39 #include <AliLocalRhoParameter.h>
40 #include <AliAnalysisTaskLocalRho.h>
42 class AliAnalysisTaskLocalRho;
45 ClassImp(AliAnalysisTaskLocalRho)
47 AliAnalysisTaskLocalRho::AliAnalysisTaskLocalRho() : AliAnalysisTaskEmcalJet("AliAnalysisTaskLocalRho", kTRUE),
48 fDebug(0), fInitialized(0), fAttachToEvent(kTRUE), fFillHistograms(kFALSE), fNoEventWeightsForQC(kTRUE), fLocalRhoName(GetName()), fUseScaledRho(0), fCentralityClasses(0), fUserSuppliedV2(0), fUserSuppliedV3(0), fUserSuppliedR2(0), fUserSuppliedR3(0), fNAcceptedTracks(0), fNAcceptedTracksQCn(0), fInCentralitySelection(-1), fFitModulationType(kNoFit), fQCRecovery(kTryFit), fUsePtWeight(kTRUE), fDetectorType(kTPC), fFitModulationOptions("WLQI"), fRunModeType(kGrid), fFitModulation(0), fMinPvalue(0.01), fMaxPvalue(1), fLocalRho(0), fLocalJetMinEta(-10), fLocalJetMaxEta(-10), fLocalJetMinPhi(-10), fLocalJetMaxPhi(-10), fSoftTrackMinPt(0.15), fSoftTrackMaxPt(5.), fHistPvalueCDF(0), fAbsVnHarmonics(kTRUE), fExcludeLeadingJetsFromFit(1.), fRebinSwapHistoOnTheFly(kTRUE), fPercentageOfFits(10.), fUseV0EventPlaneFromHeader(kTRUE), fOutputList(0), fOutputListGood(0), fOutputListBad(0), fHistSwap(0), fHistAnalysisSummary(0), fProfV2(0), fProfV2Cumulant(0), fProfV3(0), fProfV3Cumulant(0) {
49 for(Int_t i(0); i < 10; i++) {
53 // default constructor
55 //_____________________________________________________________________________
56 AliAnalysisTaskLocalRho::AliAnalysisTaskLocalRho(const char* name, runModeType type) : AliAnalysisTaskEmcalJet(name, kTRUE),
57 fDebug(0), fInitialized(0), fAttachToEvent(kTRUE), fFillHistograms(kFALSE), fNoEventWeightsForQC(kTRUE), fLocalRhoName(GetName()), fUseScaledRho(0), fCentralityClasses(0), fUserSuppliedV2(0), fUserSuppliedV3(0), fUserSuppliedR2(0), fUserSuppliedR3(0), fNAcceptedTracks(0), fNAcceptedTracksQCn(0), fInCentralitySelection(-1), fFitModulationType(kNoFit), fQCRecovery(kTryFit), fUsePtWeight(kTRUE), fDetectorType(kTPC), fFitModulationOptions("WLQI"), fRunModeType(type), fFitModulation(0), fMinPvalue(0.01), fMaxPvalue(1), fLocalRho(0), fLocalJetMinEta(-10), fLocalJetMaxEta(-10), fLocalJetMinPhi(-10), fLocalJetMaxPhi(-10), fSoftTrackMinPt(0.15), fSoftTrackMaxPt(5.), fHistPvalueCDF(0), fAbsVnHarmonics(kTRUE), fExcludeLeadingJetsFromFit(1.), fRebinSwapHistoOnTheFly(kTRUE), fPercentageOfFits(10.), fUseV0EventPlaneFromHeader(kTRUE), fOutputList(0), fOutputListGood(0), fOutputListBad(0), fHistSwap(0), fHistAnalysisSummary(0), fProfV2(0), fProfV2Cumulant(0), fProfV3(0), fProfV3Cumulant(0) {
58 for(Int_t i(0); i < 10; i++) {
63 DefineInput(0, TChain::Class());
64 DefineOutput(1, TList::Class());
65 switch (fRunModeType) {
68 DefineOutput(2, TList::Class());
69 DefineOutput(3, TList::Class());
71 default: fDebug = -1; // suppress debug info explicitely when not running locally
74 //_____________________________________________________________________________
75 AliAnalysisTaskLocalRho::~AliAnalysisTaskLocalRho()
78 if(fOutputList) delete fOutputList;
79 if(fOutputListGood) delete fOutputListGood;
80 if(fOutputListBad) delete fOutputListBad;
81 if(fFitModulation) delete fFitModulation;
82 if(fHistSwap) delete fHistSwap;
84 //_____________________________________________________________________________
85 Bool_t AliAnalysisTaskLocalRho::InitializeAnalysis()
87 // initialize the anaysis
88 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
89 if(fLocalJetMinEta > -10 && fLocalJetMaxEta > -10) SetJetEtaLimits(fLocalJetMinEta, fLocalJetMaxEta);
90 if(fLocalJetMinPhi > -10 && fLocalJetMaxPhi > -10) SetJetPhiLimits(fLocalJetMinPhi, fLocalJetMaxPhi);
91 switch (fFitModulationType) {
92 case kNoFit : { SetModulationFit(new TF1("fit_kNoFit", "[0]", 0, TMath::TwoPi())); } break;
94 SetModulationFit(new TF1("fit_kV2", "[0]*([1]+[2]*[3]*TMath::Cos([2]*(x-[4])))", 0, TMath::TwoPi()));
95 fFitModulation->SetParameter(0, 0.); // normalization
96 fFitModulation->SetParameter(3, 0.2); // v2
97 fFitModulation->FixParameter(1, 1.); // constant
98 fFitModulation->FixParameter(2, 2.); // constant
101 SetModulationFit(new TF1("fit_kV3", "[0]*([1]+[2]*[3]*TMath::Cos([2]*(x-[4])))", 0, TMath::TwoPi()));
102 fFitModulation->SetParameter(0, 0.); // normalization
103 fFitModulation->SetParameter(3, 0.2); // v3
104 fFitModulation->FixParameter(1, 1.); // constant
105 fFitModulation->FixParameter(2, 3.); // constant
107 default : { // for the combined fit, the 'direct fourier series' or the user supplied vn values we use v2 and v3
108 SetModulationFit(new TF1("fit_kCombined", "[0]*([1]+[2]*([3]*TMath::Cos([2]*(x-[4]))+[7]*TMath::Cos([5]*(x-[6]))))", 0, TMath::TwoPi()));
109 fFitModulation->SetParameter(0, 0.); // normalization
110 fFitModulation->SetParameter(3, 0.2); // v2
111 fFitModulation->FixParameter(1, 1.); // constant
112 fFitModulation->FixParameter(2, 2.); // constant
113 fFitModulation->FixParameter(5, 3.); // constant
114 fFitModulation->SetParameter(7, 0.2); // v3
117 switch (fRunModeType) {
118 case kGrid : { fFitModulationOptions += "N0"; } break;
122 // unscaled rho has been retrieved by the parent class, now we retrieve rho scaled
123 fRho = dynamic_cast<AliRhoParameter*>(InputEvent()->FindListObject(Form("%s_Scaled", fRho->GetName())));
125 AliFatal(Form("%s: Couldn't find container for scaled rho. Aborting !", GetName()));
126 return kFALSE; // pointless, but coverity will want this return value ...
129 fLocalRho = new AliLocalRhoParameter(fLocalRhoName.Data(), 0);
130 // add the local rho to the event if necessary
132 if(!(InputEvent()->FindListObject(fLocalRho->GetName()))) {
133 InputEvent()->AddObject(fLocalRho);
135 AliFatal(Form("%s: Container with same name %s already present. Aborting", GetName(), fLocalRho->GetName()));
138 FillAnalysisSummaryHistogram();
141 //_____________________________________________________________________________
142 void AliAnalysisTaskLocalRho::UserCreateOutputObjects()
144 // create output objects
145 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
146 fHistSwap = new TH1F("fHistSwap", "fHistSwap", 20, 0, TMath::TwoPi());
147 if(!fCentralityClasses) { // classes must be defined at this point
148 Int_t c[] = {0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100};
149 fCentralityClasses = new TArrayI(sizeof(c)/sizeof(c[0]), c);
151 fOutputList = new TList();
152 fOutputList->SetOwner(kTRUE);
153 // the analysis summary histo which stores all the analysis flags is always written to file
154 fHistAnalysisSummary = BookTH1F("fHistAnalysisSummary", "flag", 51, -0.5, 51.5);
155 if(!fFillHistograms) {
156 PostData(1, fOutputList);
159 for(Int_t i(0); i < fCentralityClasses->GetSize()-1; i++) {
160 fHistPsi2[i] = BookTH1F("fHistPsi2", "#Psi_{2}", 100, -.5*TMath::Pi(), .5*TMath::Pi(), i);
161 fHistPsi3[i] = BookTH1F("fHistPsi3", "#Psi_{3}", 100, -1.*TMath::Pi()/3., TMath::Pi()/3., i);
163 // cdf of chisquare distribution
164 fHistPvalueCDF = BookTH1F("fHistPvalueCDF", "CDF #chi^{2}", 500, 0, 1);
166 Float_t temp[fCentralityClasses->GetSize()];
167 for(Int_t i(0); i < fCentralityClasses->GetSize(); i++) temp[i] = fCentralityClasses->At(i);
168 fProfV2 = new TProfile("fProfV2", "fProfV2", fCentralityClasses->GetSize()-1, temp);
169 fProfV3 = new TProfile("fProfV3", "fProfV3", fCentralityClasses->GetSize()-1, temp);
170 fOutputList->Add(fProfV2);
171 fOutputList->Add(fProfV3);
172 switch (fFitModulationType) {
174 fProfV2Cumulant = new TProfile("fProfV2Cumulant", "fProfV2Cumulant", fCentralityClasses->GetSize()-1, temp);
175 fProfV3Cumulant = new TProfile("fProfV3Cumulant", "fProfV3Cumulant", fCentralityClasses->GetSize()-1, temp);
176 fOutputList->Add(fProfV2Cumulant);
177 fOutputList->Add(fProfV3Cumulant);
180 fProfV2Cumulant = new TProfile("fProfV2Cumulant", "fProfV2Cumulant", fCentralityClasses->GetSize()-1, temp);
181 fProfV3Cumulant = new TProfile("fProfV3Cumulant", "fProfV3Cumulant", fCentralityClasses->GetSize()-1, temp);
182 fOutputList->Add(fProfV2Cumulant);
183 fOutputList->Add(fProfV3Cumulant);
187 if(fUsePtWeight) fHistSwap->Sumw2();
188 if(fUserSuppliedV2) fOutputList->Add(fUserSuppliedV2);
189 if(fUserSuppliedV3) fOutputList->Add(fUserSuppliedV3);
190 if(fUserSuppliedR2) fOutputList->Add(fUserSuppliedR2);
191 if(fUserSuppliedR3) fOutputList->Add(fUserSuppliedR3);
192 // increase readability of output list
194 PostData(1, fOutputList);
195 switch (fRunModeType) {
197 fOutputListGood = new TList();
198 fOutputListGood->SetOwner(kTRUE);
199 fOutputListBad = new TList();
200 fOutputListBad->SetOwner(kTRUE);
201 PostData(2, fOutputListGood);
202 PostData(3, fOutputListBad);
207 //_____________________________________________________________________________
208 TH1F* AliAnalysisTaskLocalRho::BookTH1F(const char* name, const char* x, Int_t bins, Double_t min, Double_t max, Int_t c, Bool_t append)
210 // book a TH1F and connect it to the output container
211 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
212 if(!fOutputList) return 0x0;
214 if(c!=-1) { // format centrality dependent histograms accordingly
215 name = Form("%s_%i", name, c);
216 title += Form("_%i-%i", fCentralityClasses->At(c), fCentralityClasses->At(1+c));
218 title += Form(";%s;[counts]", x);
219 TH1F* histogram = new TH1F(name, title.Data(), bins, min, max);
221 if(append) fOutputList->Add(histogram);
224 //_____________________________________________________________________________
225 TH2F* AliAnalysisTaskLocalRho::BookTH2F(const char* name, const char* x, const char*y, Int_t binsx, Double_t minx, Double_t maxx, Int_t binsy, Double_t miny, Double_t maxy, Int_t c, Bool_t append)
227 // book a TH2F and connect it to the output container
228 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
229 if(!fOutputList) return 0x0;
231 if(c!=-1) { // format centrality dependent histograms accordingly
232 name = Form("%s_%i", name, c);
233 title += Form("_%i-%i", fCentralityClasses->At(c), fCentralityClasses->At(1+c));
235 title += Form(";%s;%s", x, y);
236 TH2F* histogram = new TH2F(name, title.Data(), binsx, minx, maxx, binsy, miny, maxy);
238 if(append) fOutputList->Add(histogram);
241 //_____________________________________________________________________________
242 Bool_t AliAnalysisTaskLocalRho::Run()
244 // execute once for each event
245 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
246 if(!(InputEvent()||fTracks||fJets||fRho)) return kFALSE;
247 if(!fInitialized) fInitialized = InitializeAnalysis();
248 // get the centrality bin (necessary for some control histograms
249 fInCentralitySelection = -1;
250 Double_t cent(InputEvent()->GetCentrality()->GetCentralityPercentile("V0M"));
251 for(Int_t i(0); i < fCentralityClasses->GetSize()-1; i++) {
252 if(cent >= fCentralityClasses->At(i) && cent <= fCentralityClasses->At(1+i)) {
253 fInCentralitySelection = i;
256 if(fInCentralitySelection < 0) return kFALSE;
258 fLocalRho->SetVal(fRho->GetVal());
259 // set the correct event plane accordign to the requested reference detector
260 Double_t psi2(-1), psi3(-1);
261 switch (fDetectorType) { // determine the detector type for the rho fit
265 CalculateEventPlaneTPC(tpc);
266 psi2 = tpc[0]; psi3 = tpc[1];
269 // [0][0] psi2a [1,0] psi2c
270 // [0][1] psi3a [1,1] psi3c
271 Double_t vzero[2][2];
272 CalculateEventPlaneVZERO(vzero);
273 psi2 = vzero[0][0]; psi3 = vzero[0][1];
276 // [0][0] psi2a [1,0] psi2c
277 // [0][1] psi3a [1,1] psi3c
278 Double_t vzero[2][2];
279 CalculateEventPlaneVZERO(vzero);
280 psi2 = vzero[1][0]; psi3 = vzero[1][1];
283 /* for the combined vzero event plane
285 * not fully implmemented yet, use with caution ! */
286 Double_t vzeroComb[2];
287 CalculateEventPlaneCombinedVZERO(vzeroComb);
288 psi2 = vzeroComb[0]; psi3 = vzeroComb[1];
292 if(fFillHistograms) FillEventPlaneHistograms(psi2, psi3);
293 switch (fFitModulationType) { // do the fits
294 case kNoFit : { fFitModulation->FixParameter(0, fLocalRho->GetVal()); } break;
295 case kV2 : { // only v2
296 if(CorrectRho(psi2, psi3)) {
297 if(fFillHistograms) fProfV2->Fill(fCent, fFitModulation->GetParameter(3));
298 if(fUserSuppliedR2) {
299 Double_t r(fUserSuppliedR2->GetBinContent(fUserSuppliedR2->GetXaxis()->FindBin(fCent)));
300 if(r > 0) fFitModulation->SetParameter(3, fFitModulation->GetParameter(3)/r);
304 case kV3 : { // only v3
305 if(CorrectRho(psi2, psi3)) {
306 if(fUserSuppliedR3) {
307 Double_t r(fUserSuppliedR3->GetBinContent(fUserSuppliedR3->GetXaxis()->FindBin(fCent)));
308 if(r > 0) fFitModulation->SetParameter(3, fFitModulation->GetParameter(3)/r);
310 if(fFillHistograms) fProfV3->Fill(fCent, fFitModulation->GetParameter(3));
313 case kQC2 : { // qc2 analysis - NOTE: not a wise idea to use this !
314 if(CorrectRho(psi2, psi3)) {
315 if(fUserSuppliedR2 && fUserSuppliedR3) {
316 // note for the qc method, resolution is REVERSED to go back to v2obs
317 Double_t r2(fUserSuppliedR2->GetBinContent(fUserSuppliedR2->GetXaxis()->FindBin(fCent)));
318 Double_t r3(fUserSuppliedR3->GetBinContent(fUserSuppliedR3->GetXaxis()->FindBin(fCent)));
319 if(r2 > 0) fFitModulation->SetParameter(3, fFitModulation->GetParameter(3)*r2);
320 if(r3 > 0) fFitModulation->SetParameter(7, fFitModulation->GetParameter(7)*r3);
322 if (fUsePtWeight) { // use weighted weights
323 Double_t dQCnM11 = (fNoEventWeightsForQC) ? 1. : QCnM11();
324 if(fFillHistograms) {
325 fProfV2->Fill(fCent, fFitModulation->GetParameter(3), dQCnM11);
326 fProfV3->Fill(fCent, fFitModulation->GetParameter(7), dQCnM11);
329 Double_t dQCnM = (fNoEventWeightsForQC) ? 2. : QCnM();
330 if(fFillHistograms) {
331 fProfV2->Fill(fCent, fFitModulation->GetParameter(3), dQCnM*(dQCnM-1));
332 fProfV3->Fill(fCent, fFitModulation->GetParameter(7), dQCnM*(dQCnM-1));
337 case kQC4 : { // NOTE: see comment at kQC2
338 if(CorrectRho(psi2, psi3)) {
339 if(fUserSuppliedR2 && fUserSuppliedR3) {
340 // note for the qc method, resolution is REVERSED to go back to v2obs
341 Double_t r2(fUserSuppliedR2->GetBinContent(fUserSuppliedR2->GetXaxis()->FindBin(fCent)));
342 Double_t r3(fUserSuppliedR3->GetBinContent(fUserSuppliedR3->GetXaxis()->FindBin(fCent)));
343 if(r2 > 0) fFitModulation->SetParameter(3, fFitModulation->GetParameter(3)*r2);
344 if(r3 > 0) fFitModulation->SetParameter(7, fFitModulation->GetParameter(7)*r3);
346 if (fUsePtWeight) { // use weighted weights
347 if(fFillHistograms) {
348 fProfV2->Fill(fCent, TMath::Power(fFitModulation->GetParameter(3),0.5)/*, QCnM1111()*/);
349 fProfV3->Fill(fCent, TMath::Power(fFitModulation->GetParameter(7),0.5)/*, QCnM1111()*/);
352 if(fFillHistograms) {
353 fProfV2->Fill(fCent, TMath::Power(fFitModulation->GetParameter(3),0.5)/*, QCnM()*(QCnM()-1)*(QCnM()-2)*(QCnM()-3)*/);
354 fProfV3->Fill(fCent, TMath::Power(fFitModulation->GetParameter(7),0.5)/*, QCnM()*(QCnM()-1)*(QCnM()-2)*(QCnM()-3)*/);
360 if(CorrectRho(psi2, psi3)) {
361 if(fUserSuppliedR2 && fUserSuppliedR3) {
362 Double_t r2(fUserSuppliedR2->GetBinContent(fUserSuppliedR2->GetXaxis()->FindBin(fCent)));
363 Double_t r3(fUserSuppliedR3->GetBinContent(fUserSuppliedR3->GetXaxis()->FindBin(fCent)));
364 if(r2 > 0) fFitModulation->SetParameter(3, fFitModulation->GetParameter(3)/r2);
365 if(r3 > 0) fFitModulation->SetParameter(7, fFitModulation->GetParameter(7)/r3);
367 if(fFillHistograms) {
368 fProfV2->Fill(fCent, fFitModulation->GetParameter(3));
369 fProfV3->Fill(fCent, fFitModulation->GetParameter(7));
374 // if all went well, add local rho
375 fLocalRho->SetLocalRho(fFitModulation);
376 PostData(1, fOutputList);
379 //_____________________________________________________________________________
380 void AliAnalysisTaskLocalRho::CalculateEventPlaneVZERO(Double_t vzero[2][2]) const
382 // get the vzero event plane
383 if(fUseV0EventPlaneFromHeader) {
384 // use the vzero event plane from the event header
385 // note: to use the calibrated vzero event plane, run
386 // $ALICE_ROOT/ANALYSIS/macros/AddTaskVZEROEPSelection.C
387 // prior to this task (make sure the calibration is available for the dataset
389 Double_t a(0), b(0), c(0), d(0), e(0), f(0), g(0), h(0);
390 vzero[0][0] = InputEvent()->GetEventplane()->CalculateVZEROEventPlane(InputEvent(), 8, 2, a, b);
391 vzero[1][0] = InputEvent()->GetEventplane()->CalculateVZEROEventPlane(InputEvent(), 9, 2, c, d);
392 vzero[0][1] = InputEvent()->GetEventplane()->CalculateVZEROEventPlane(InputEvent(), 8, 3, e, f);
393 vzero[1][1] = InputEvent()->GetEventplane()->CalculateVZEROEventPlane(InputEvent(), 9, 3, g, h);
396 // grab the vzero event plane without recentering
397 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
398 Double_t qxa2(0), qya2(0), qxc2(0), qyc2(0); // for psi2
399 Double_t qxa3(0), qya3(0), qxc3(0), qyc3(0); // for psi3
400 for(Int_t iVZERO(0); iVZERO < 64; iVZERO++) {
401 Double_t phi(TMath::PiOver4()*(.5+iVZERO%8)), /* eta(0), */ weight(InputEvent()->GetVZEROEqMultiplicity(iVZERO));
402 // (iVZERO<32) ? eta = -3.45+.5*(iVZERO/8) : eta = 4.8-.6*((iVZERO/8)-4);
404 qxa2 += weight*TMath::Cos(2.*phi);
405 qya2 += weight*TMath::Sin(2.*phi);
406 qxa3 += weight*TMath::Cos(3.*phi);
407 qya3 += weight*TMath::Sin(3.*phi);
410 qxc2 += weight*TMath::Cos(2.*phi);
411 qyc2 += weight*TMath::Sin(2.*phi);
412 qxc3 += weight*TMath::Cos(3.*phi);
413 qyc3 += weight*TMath::Sin(3.*phi);
416 vzero[0][0] = .5*TMath::ATan2(qya2, qxa2);
417 vzero[1][0] = .5*TMath::ATan2(qyc2, qxc2);
418 vzero[0][1] = (1./3.)*TMath::ATan2(qya3, qxa3);
419 vzero[1][1] = (1./3.)*TMath::ATan2(qyc3, qxc3);
421 //_____________________________________________________________________________
422 void AliAnalysisTaskLocalRho::CalculateEventPlaneTPC(Double_t* tpc)
424 // grab the TPC event plane. if parameter fExcludeLeadingJetsFromFit is larger than 0,
425 // strip in eta of width fExcludeLeadingJetsFromFit * fJetRadius around the leading jet (before
426 // subtraction of rho) will be exluded from the event plane estimate
427 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
428 fNAcceptedTracks = 0; // reset the track counter
429 Double_t qx2(0), qy2(0); // for psi2
430 Double_t qx3(0), qy3(0); // for psi3
432 Float_t excludeInEta[] = {-999, -999};
433 if(fExcludeLeadingJetsFromFit > 0 ) { // remove the leading jet from ep estimate
434 AliEmcalJet* leadingJet[] = {0x0, 0x0};
435 static Int_t lJets[9999] = {-1};
436 GetSortedArray(lJets, fJets);
437 for(Int_t i(0); i < fJets->GetEntriesFast(); i++) { // get the two leading jets
438 if (1 + i > fJets->GetEntriesFast()) break;
439 leadingJet[0] = static_cast<AliEmcalJet*>(fJets->At(lJets[i]));
440 leadingJet[1] = static_cast<AliEmcalJet*>(fJets->At(lJets[i+1]));
441 if(PassesCuts(leadingJet[0]) && PassesCuts(leadingJet[1])) break;
443 if(leadingJet[0] && leadingJet[1]) {
444 for(Int_t i(0); i < 2; i++) excludeInEta[i] = leadingJet[i]->Eta();
447 Int_t iTracks(fTracks->GetEntriesFast());
448 for(Int_t iTPC(0); iTPC < iTracks; iTPC++) {
449 AliVTrack* track = static_cast<AliVTrack*>(fTracks->At(iTPC));
450 if(!PassesCuts(track) || track->Pt() < fSoftTrackMinPt || track->Pt() > fSoftTrackMaxPt) continue;
451 if(fExcludeLeadingJetsFromFit > 0 &&( (TMath::Abs(track->Eta() - excludeInEta[0]) < fJetRadius*fExcludeLeadingJetsFromFit ) || (TMath::Abs(track->Eta()) - fJetRadius - fJetMaxEta ) > 0 )) continue;
453 qx2+= TMath::Cos(2.*track->Phi());
454 qy2+= TMath::Sin(2.*track->Phi());
455 qx3+= TMath::Cos(3.*track->Phi());
456 qy3+= TMath::Sin(3.*track->Phi());
459 tpc[0] = .5*TMath::ATan2(qy2, qx2);
460 tpc[1] = (1./3.)*TMath::ATan2(qy3, qx3);
462 //_____________________________________________________________________________
463 void AliAnalysisTaskLocalRho::CalculateEventPlaneCombinedVZERO(Double_t* comb) const
465 // grab the combined vzero event plane
466 // if(fUseV0EventPlaneFromHeader) { // use the vzero from the header
467 Double_t a(0), b(0), c(0), d(0);
468 comb[0] = InputEvent()->GetEventplane()->CalculateVZEROEventPlane(InputEvent(), 10, 2, a, b);
469 comb[1] = InputEvent()->GetEventplane()->CalculateVZEROEventPlane(InputEvent(), 10, 3, c, d);
470 // FIXME the rest of this function isn't impelmented yet (as of 01-07-2013)
471 // this means a default the combined vzero event plane from the header is used
472 // to get this value 'by hand', vzeroa and vzeroc event planes have to be combined
473 // according to their resolution - this will be added ...
476 // Double_t qx2a(0), qy2a(0), qx2c(0), qy2c(0), qx3a(0), qy3a(0), qx3c(0), qy3c(0);
477 // InputEvent()->GetEventplane()->CalculateVZEROEventPlane(InputEvent(), 8, 2, qx2a, qy2a);
478 // InputEvent()->GetEventplane()->CalculateVZEROEventPlane(InputEvent(), 9, 2, qx2c, qy2c);
479 // InputEvent()->GetEventplane()->CalculateVZEROEventPlane(InputEvent(), 8, 3, qx3a, qy3a);
480 // InputEvent()->GetEventplane()->CalculateVZEROEventPlane(InputEvent(), 9, 3, qx3c, qy3c);
481 // Double_t chi2A(-1), chi2C(-1), chi3A(-1), chi3C(-1); // get chi from the resolution
482 // Double_t qx2(chi2A*chi2A*qx2a+chi2C*chi2C*qx2c);
483 // Double_t qy2(chi2A*chi2A*qy2a+chi2C*chi2C*qy2c);
484 // Double_t qx3(chi3A*chi3A*qx3a+chi3C*chi3C*qx3c);
485 // Double_t qy3(chi3A*chi3A*qy3a+chi3C*chi3C*qy3c);
486 // comb[0] = .5*TMath::ATan2(qy2, qx2);
487 // comb[1] = (1./3.)*TMath::ATan2(qy3, qx3);
490 //_____________________________________________________________________________
491 Double_t AliAnalysisTaskLocalRho::CalculateQC2(Int_t harm) {
492 // get the second order q-cumulant, a -999 return will be caught in the qa routine of CorrectRho
493 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
494 Double_t reQ(0), imQ(0), modQ(0), M11(0), M(0);
495 if(fUsePtWeight) { // for the weighted 2-nd order q-cumulant
496 QCnQnk(harm, 1, reQ, imQ); // get the weighted 2-nd order q-vectors
497 modQ = reQ*reQ+imQ*imQ; // get abs Q-squared
498 M11 = QCnM11(); // equals S2,1 - S1,2
499 return (M11 > 0) ? ((modQ - QCnS(1,2))/M11) : -999;
500 } // else return the non-weighted 2-nd order q-cumulant
501 QCnQnk(harm, 0, reQ, imQ); // get the non-weighted 2-nd order q-vectors
502 modQ = reQ*reQ+imQ*imQ; // get abs Q-squared
504 return (M > 1) ? (modQ - M)/(M*(M-1)) : -999;
506 //_____________________________________________________________________________
507 Double_t AliAnalysisTaskLocalRho::CalculateQC4(Int_t harm) {
508 // get the fourth order q-cumulant, a -999 return will be caught in the qa routine of CorrectRho
509 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
510 Double_t reQn1(0), imQn1(0), reQ2n2(0), imQ2n2(0), reQn3(0), imQn3(0), M1111(0), M(0);
511 Double_t a(0), b(0), c(0), d(0), e(0), f(0), g(0); // terms of the calculation
512 if(fUsePtWeight) { // for the weighted 4-th order q-cumulant
513 QCnQnk(harm, 1, reQn1, imQn1);
514 QCnQnk(harm*2, 2, reQ2n2, imQ2n2);
515 QCnQnk(harm, 3, reQn3, imQn3);
516 // fill in the terms ...
517 a = (reQn1*reQn1+imQn1*imQn1)*(reQn1*reQn1+imQn1*imQn1);
518 b = reQ2n2*reQ2n2 + imQ2n2*imQ2n2;
519 c = -2.*(reQ2n2*reQn1*reQn1-reQ2n2*imQn1*imQn1+2.*imQ2n2*reQn1*imQn1);
520 d = 8.*(reQn3*reQn1+imQn3*imQn1);
521 e = -4.*QCnS(1,2)*(reQn1*reQn1+imQn1*imQn1);
525 return (M1111 > 0) ? (a+b+c+d+e+f+g)/M1111 : -999;
526 } // else return the unweighted case
527 Double_t reQn(0), imQn(0), reQ2n(0), imQ2n(0);
528 QCnQnk(harm, 0, reQn, imQn);
529 QCnQnk(harm*2, 0, reQ2n, imQ2n);
530 // fill in the terms ...
532 if(M < 4) return -999;
533 a = (reQn*reQn+imQn*imQn)*(reQn*reQn+imQn*imQn);
534 b = reQ2n*reQ2n + imQ2n*imQ2n;
535 c = -2.*(reQ2n*reQn*reQn-reQ2n*imQn*imQn+2.*imQ2n*reQn*imQn);
536 e = -4.*(M-2)*(reQn*reQn+imQn*imQn);
538 return (a+b+c+e+f)/(M*(M-1)*(M-2)*(M-3));
540 //_____________________________________________________________________________
541 void AliAnalysisTaskLocalRho::QCnQnk(Int_t n, Int_t k, Double_t &reQ, Double_t &imQ) {
542 // get the weighted n-th order q-vector, pass real and imaginary part as reference
543 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
545 fNAcceptedTracksQCn = 0;
546 Int_t iTracks(fTracks->GetEntriesFast());
547 for(Int_t iTPC(0); iTPC < iTracks; iTPC++) {
548 AliVTrack* track = static_cast<AliVTrack*>(fTracks->At(iTPC));
549 if(!PassesCuts(track) || track->Pt() < fSoftTrackMinPt || track->Pt() > fSoftTrackMaxPt) continue;
550 fNAcceptedTracksQCn++;
551 // for the unweighted case, k equals zero and the weight doesn't contribute to the equation below
552 reQ += TMath::Power(track->Pt(), k) * TMath::Cos(((double)n)*track->Phi());
553 imQ += TMath::Power(track->Pt(), k) * TMath::Sin(((double)n)*track->Phi());
556 //_____________________________________________________________________________
557 Double_t AliAnalysisTaskLocalRho::QCnS(Int_t i, Int_t j) {
558 // get the weighted ij-th order autocorrelation correction
559 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
560 if(!fTracks || i <= 0 || j <= 0) return -999;
561 Int_t iTracks(fTracks->GetEntriesFast());
563 for(Int_t iTPC(0); iTPC < iTracks; iTPC++) {
564 AliVTrack* track = static_cast<AliVTrack*>(fTracks->At(iTPC));
565 if(!PassesCuts(track) || track->Pt() < fSoftTrackMinPt || track->Pt() > fSoftTrackMaxPt) continue;
566 Sij+=TMath::Power(track->Pt(), j);
568 return TMath::Power(Sij, i);
570 //_____________________________________________________________________________
571 Double_t AliAnalysisTaskLocalRho::QCnM() {
572 // get multiplicity for unweighted q-cumulants. function QCnQnk should be called first
573 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
574 return (Double_t) fNAcceptedTracksQCn;
576 //_____________________________________________________________________________
577 Double_t AliAnalysisTaskLocalRho::QCnM11() {
578 // get multiplicity weights for the weighted two particle cumulant
579 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
580 return (QCnS(2,1) - QCnS(1,2));
582 //_____________________________________________________________________________
583 Double_t AliAnalysisTaskLocalRho::QCnM1111() {
584 // get multiplicity weights for the weighted four particle cumulant
585 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
586 return (QCnS(4,1)-6*QCnS(1,2)*QCnS(2,1)+8*QCnS(1,3)*QCnS(1,1)+3*QCnS(2,2)-6*QCnS(1,4));
588 //_____________________________________________________________________________
589 Bool_t AliAnalysisTaskLocalRho::QCnRecovery(Double_t psi2, Double_t psi3) {
590 // decides how to deal with the situation where c2 or c3 is negative
591 // returns kTRUE depending on whether or not a modulated rho is used for the jet background
592 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
593 if(TMath::AreEqualAbs(fFitModulation->GetParameter(3), .0, 1e-10) && TMath::AreEqualAbs(fFitModulation->GetParameter(7), .0,1e-10)) {
594 fFitModulation->SetParameter(7, 0);
595 fFitModulation->SetParameter(3, 0);
596 fFitModulation->SetParameter(0, fLocalRho->GetVal());
597 return kTRUE; // v2 and v3 have physical null values
599 switch (fQCRecovery) {
600 case kFixedRho : { // roll back to the original rho
601 fFitModulation->SetParameter(7, 0);
602 fFitModulation->SetParameter(3, 0);
603 fFitModulation->SetParameter(0, fLocalRho->GetVal());
604 return kFALSE; // rho is forced to be fixed
607 Double_t c2(fFitModulation->GetParameter(3));
608 Double_t c3(fFitModulation->GetParameter(7));
609 if( c2 < 0 ) c2 = -1.*TMath::Sqrt(-1.*c2);
610 if( c3 < 0 ) c3 = -1.*TMath::Sqrt(-1.*c3);
611 fFitModulation->SetParameter(3, c2);
612 fFitModulation->SetParameter(7, c3);
613 return kTRUE; // is this a physical quantity ?
616 fitModulationType tempType(fFitModulationType); // store temporarily
617 fFitModulationType = kCombined;
618 fFitModulation->SetParameter(7, 0);
619 fFitModulation->SetParameter(3, 0);
620 Bool_t pass(CorrectRho(psi2, psi3)); // do the fit and all quality checks
621 fFitModulationType = tempType; // roll back for next event
624 default : return kFALSE;
628 //_____________________________________________________________________________
629 Bool_t AliAnalysisTaskLocalRho::CorrectRho(Double_t psi2, Double_t psi3)
631 // get rho' -> rho(phi)
632 // three routines are available, 1 and 2 can be used with or without pt weights
633 // [1] get vn from q-cumulants
634 // in case of cumulants, both cumulants and vn values are stored. in both cases, v2 and v3
635 // are expected. a check is performed to see if rho has no negative local minimum
636 // for full description, see Phys. Rev. C 83, 044913
637 // since the cn distribution has negative values, vn = sqrt(cn) can be imaginary sometimes
638 // in this case one can either roll back to the 'original' fixed rho, do a fit for vn or take use
639 // vn = - sqrt(|cn|) note that because of this, use of q-cumulants is not safe !
640 // [2] fitting a fourier expansion to the de/dphi distribution
641 // the fit can be done with either v2, v3 or a combination.
642 // in all cases, a cut can be made on the p-value of the chi-squared value of the fit
643 // and a check can be performed to see if rho has no negative local minimum
644 // [3] get v2 and v3 from user supplied histograms
645 // in this way, a fixed value of v2 and v3 is subtracted w.r.t. whichever event plane is requested
646 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
647 switch (fFitModulationType) { // for approaches where no fitting is required
649 fFitModulation->FixParameter(4, psi2);
650 fFitModulation->FixParameter(6, psi3);
651 fFitModulation->FixParameter(3, CalculateQC2(2)); // set here with cn, vn = sqrt(cn)
652 fFitModulation->FixParameter(7, CalculateQC2(3));
653 // first fill the histos of the raw cumulant distribution
654 if (fUsePtWeight) { // use weighted weights
655 Double_t dQCnM11 = (fNoEventWeightsForQC) ? 1. : QCnM11();
656 if(fFillHistograms) {
657 fProfV2Cumulant->Fill(fCent, fFitModulation->GetParameter(3), dQCnM11);
658 fProfV3Cumulant->Fill(fCent, fFitModulation->GetParameter(7), dQCnM11);
661 Double_t dQCnM = (fNoEventWeightsForQC) ? 2. : QCnM();
662 if(fFillHistograms) {
663 fProfV2Cumulant->Fill(fCent, fFitModulation->GetParameter(3), dQCnM*(dQCnM-1));
664 fProfV3Cumulant->Fill(fCent, fFitModulation->GetParameter(7), dQCnM*(dQCnM-1));
667 // then see if one of the cn value is larger than zero and vn is readily available
668 if(fFitModulation->GetParameter(3) > 0 && fFitModulation->GetParameter(7) > 0) {
669 fFitModulation->FixParameter(3, TMath::Sqrt(fFitModulation->GetParameter(3)));
670 fFitModulation->FixParameter(7, TMath::Sqrt(fFitModulation->GetParameter(7)));
671 } else if (!QCnRecovery(psi2, psi3)) return kFALSE; // try to recover the cumulant, this will set v2 and v3
672 if(fAbsVnHarmonics && fFitModulation->GetMinimum(0, TMath::TwoPi()) < 0) { // general check
673 fFitModulation->SetParameter(7, 0);
674 fFitModulation->SetParameter(3, 0);
675 fFitModulation->SetParameter(0, fLocalRho->GetVal());
681 fFitModulation->FixParameter(4, psi2);
682 fFitModulation->FixParameter(6, psi3);
683 fFitModulation->FixParameter(3, CalculateQC4(2)); // set here with cn, vn = sqrt(cn)
684 fFitModulation->FixParameter(7, CalculateQC4(3));
685 // first fill the histos of the raw cumulant distribution
686 if (fUsePtWeight) { // use weighted weights
687 if(fFillHistograms) {
688 fProfV2Cumulant->Fill(fCent, fFitModulation->GetParameter(3)/*, QCnM1111()*/);
689 fProfV3Cumulant->Fill(fCent, fFitModulation->GetParameter(7)/*, QCnM1111()*/);
692 if(fFillHistograms) {
693 fProfV2Cumulant->Fill(fCent, fFitModulation->GetParameter(3)/*, QCnM1111()*/);
694 fProfV3Cumulant->Fill(fCent, fFitModulation->GetParameter(7)/*, QCnM1111()*/);
697 // then see if one of the cn value is larger than zero and vn is readily available
698 if(fFitModulation->GetParameter(3) > 0 && fFitModulation->GetParameter(7) > 0) {
699 fFitModulation->FixParameter(3, TMath::Sqrt(fFitModulation->GetParameter(3)));
700 fFitModulation->FixParameter(7, TMath::Sqrt(fFitModulation->GetParameter(7)));
701 } else if (!QCnRecovery(psi2, psi3)) return kFALSE; // try to recover the cumulant, this will set v2 and v3
702 if(fAbsVnHarmonics && fFitModulation->GetMinimum(0, TMath::TwoPi()) < 0) { // general check
703 fFitModulation->SetParameter(7, 0);
704 fFitModulation->SetParameter(3, 0);
705 fFitModulation->SetParameter(0, fLocalRho->GetVal());
709 case kIntegratedFlow : {
710 // use v2 and v3 values from an earlier iteration over the data
711 fFitModulation->FixParameter(3, fUserSuppliedV2->GetBinContent(fUserSuppliedV2->GetXaxis()->FindBin(fCent)));
712 fFitModulation->FixParameter(4, psi2);
713 fFitModulation->FixParameter(6, psi3);
714 fFitModulation->FixParameter(7, fUserSuppliedV3->GetBinContent(fUserSuppliedV3->GetXaxis()->FindBin(fCent)));
715 if(fAbsVnHarmonics && fFitModulation->GetMinimum(0, TMath::TwoPi()) < 0) {
716 fFitModulation->SetParameter(7, 0);
717 fFitModulation->SetParameter(3, 0);
718 fFitModulation->SetParameter(0, fLocalRho->GetVal());
725 TString detector("");
726 switch (fDetectorType) {
727 case kTPC : detector+="TPC";
729 case kVZEROA : detector+="VZEROA";
731 case kVZEROC : detector+="VZEROC";
733 case kVZEROComb : detector+="VZEROComb";
737 Int_t iTracks(fTracks->GetEntriesFast());
738 Double_t excludeInEta[] = {-999, -999};
739 Double_t excludeInPhi[] = {-999, -999};
740 Double_t excludeInPt[] = {-999, -999};
741 if(iTracks <= 0 || fLocalRho->GetVal() <= 0 ) return kFALSE; // no use fitting an empty event ...
742 if(fExcludeLeadingJetsFromFit > 0 ) {
743 AliEmcalJet* leadingJet[] = {0x0, 0x0};
744 static Int_t lJets[9999] = {-1};
745 GetSortedArray(lJets, fJets);
746 for(Int_t i(0); i < fJets->GetEntriesFast(); i++) { // get the two leading jets
747 if (1 + i > fJets->GetEntriesFast()) break;
748 leadingJet[0] = static_cast<AliEmcalJet*>(fJets->At(lJets[i]));
749 leadingJet[1] = static_cast<AliEmcalJet*>(fJets->At(lJets[i+1]));
750 if(PassesCuts(leadingJet[0]) && PassesCuts(leadingJet[1])) break;
752 if(leadingJet[0] && leadingJet[1]) {
753 for(Int_t i(0); i < 2; i++) {
754 excludeInEta[i] = leadingJet[i]->Eta();
755 excludeInPhi[i] = leadingJet[i]->Phi();
756 excludeInPt[i] = leadingJet[i]->Pt();
760 fHistSwap->Reset(); // clear the histogram
762 if(fRebinSwapHistoOnTheFly) {
763 if(fNAcceptedTracks < 49) fNAcceptedTracks = 49; // avoid aliasing effects
764 _tempSwap = TH1F("_tempSwap", "_tempSwap", TMath::CeilNint(TMath::Sqrt(fNAcceptedTracks)), 0, TMath::TwoPi());
765 if(fUsePtWeight) _tempSwap.Sumw2();
767 else _tempSwap = *fHistSwap; // now _tempSwap holds the desired histo
768 for(Int_t i(0); i < iTracks; i++) {
769 AliVTrack* track = static_cast<AliVTrack*>(fTracks->At(i));
770 if(fExcludeLeadingJetsFromFit > 0 &&( (TMath::Abs(track->Eta() - excludeInEta[0]) < fJetRadius*fExcludeLeadingJetsFromFit ) || (TMath::Abs(track->Eta()) - fJetRadius - fJetMaxEta ) > 0 )) continue;
771 if(!PassesCuts(track) || track->Pt() > fSoftTrackMaxPt || track->Pt() < fSoftTrackMinPt) continue;
772 if(fUsePtWeight) _tempSwap.Fill(track->Phi(), track->Pt());
773 else _tempSwap.Fill(track->Phi());
775 // for(Int_t i(0); i < _tempSwap.GetXaxis()->GetNbins(); i++) _tempSwap.SetBinError(1+i, TMath::Sqrt(_tempSwap.GetBinContent(1+i)));
776 fFitModulation->SetParameter(0, fLocalRho->GetVal());
777 switch (fFitModulationType) {
778 case kNoFit : { fFitModulation->FixParameter(0, fLocalRho->GetVal() );
781 fFitModulation->FixParameter(4, psi2);
784 fFitModulation->FixParameter(4, psi3);
787 fFitModulation->FixParameter(4, psi2);
788 fFitModulation->FixParameter(6, psi3);
790 case kFourierSeries : {
791 // in this approach, an explicit calculation will be made of vn = sqrt(xn^2+yn^2)
792 // where x[y] = Integrate[r(phi)cos[sin](n phi)dphi, 0, 2pi]
793 Double_t cos2(0), sin2(0), cos3(0), sin3(0), sumPt(0);
794 for(Int_t i(0); i < iTracks; i++) {
795 AliVTrack* track = static_cast<AliVTrack*>(fTracks->At(i));
796 if(!PassesCuts(track) || track->Pt() > fSoftTrackMaxPt || track->Pt() < fSoftTrackMinPt) continue;
797 sumPt += track->Pt();
798 cos2 += track->Pt()*TMath::Cos(2*PhaseShift(track->Phi()-psi2));
799 sin2 += track->Pt()*TMath::Sin(2*PhaseShift(track->Phi()-psi2));
800 cos3 += track->Pt()*TMath::Cos(3*PhaseShift(track->Phi()-psi3));
801 sin3 += track->Pt()*TMath::Sin(3*PhaseShift(track->Phi()-psi3));
803 fFitModulation->SetParameter(3, TMath::Sqrt(cos2*cos2+sin2*sin2)/fLocalRho->GetVal());
804 fFitModulation->SetParameter(4, psi2);
805 fFitModulation->SetParameter(6, psi3);
806 fFitModulation->SetParameter(7, TMath::Sqrt(cos3*cos3+sin3*sin3)/fLocalRho->GetVal());
810 _tempSwap.Fit(fFitModulation, fFitModulationOptions.Data(), "", 0, TMath::TwoPi());
811 // the quality of the fit is evaluated from 1 - the cdf of the chi square distribution
812 Double_t CDF(1.-ChiSquareCDF(fFitModulation->GetNDF(), fFitModulation->GetChisquare()));
813 if(fFillHistograms) fHistPvalueCDF->Fill(CDF);
814 if(CDF > fMinPvalue && CDF < fMaxPvalue && ( fAbsVnHarmonics && fFitModulation->GetMinimum(0, TMath::TwoPi()) > 0)) { // fit quality
815 // for LOCAL didactic purposes, save the best and the worst fits
816 // this routine can produce a lot of output histograms (it's not memory 'safe') and will not work on GRID
817 // since the output will become unmergeable (i.e. different nodes may produce conflicting output)
818 switch (fRunModeType) {
820 if(gRandom->Uniform(0, 100) > fPercentageOfFits) break;
821 static Int_t didacticCounterBest(0);
822 TProfile* didacticProfile = (TProfile*)_tempSwap.Clone(Form("Fit_%i_1-CDF_%.3f_cen_%i_%s", didacticCounterBest, CDF, fInCentralitySelection, detector.Data()));
823 TF1* didactifFit = (TF1*)fFitModulation->Clone(Form("fit_%i_CDF_%.3f_cen_%i_%s", didacticCounterBest, CDF, fInCentralitySelection, detector.Data()));
824 didacticProfile->GetListOfFunctions()->Add(didactifFit);
825 fOutputListGood->Add(didacticProfile);
826 didacticCounterBest++;
827 TH2F* didacticSurface = BookTH2F(Form("surface_%s", didacticProfile->GetName()), "#phi", "#eta", 50, 0, TMath::TwoPi(), 50, -1, 1, -1, kFALSE);
828 for(Int_t i(0); i < iTracks; i++) {
829 AliVTrack* track = static_cast<AliVTrack*>(fTracks->At(i));
830 if(PassesCuts(track)) {
831 if(fUsePtWeight) didacticSurface->Fill(track->Phi(), track->Eta(), track->Pt());
832 else didacticSurface->Fill(track->Phi(), track->Eta());
835 if(fExcludeLeadingJetsFromFit) { // visualize the excluded region
836 TF2 *f2 = new TF2(Form("%s_LJ", didacticSurface->GetName()),"[0]*TMath::Gaus(x,[1],[2])*TMath::Gaus(y,[3],[4])", 0, TMath::TwoPi(), -1, 1);
837 f2->SetParameters(excludeInPt[0]/3.,excludeInPhi[0],.1,excludeInEta[0],.1);
838 didacticSurface->GetListOfFunctions()->Add(f2);
839 TF2 *f3 = new TF2(Form("%s_NLJ", didacticSurface->GetName()),"[0]*TMath::Gaus(x,[1],[2])*TMath::Gaus(y,[3],[4])", 0, TMath::TwoPi(), -1, 1);
840 f3->SetParameters(excludeInPt[1]/3.,excludeInPhi[1],.1,excludeInEta[1],.1);
841 f3->SetLineColor(kGreen);
842 didacticSurface->GetListOfFunctions()->Add(f3);
844 fOutputListGood->Add(didacticSurface);
848 } else { // if the fit is of poor quality revert to the original rho estimate
849 switch (fRunModeType) { // again see if we want to save the fit
851 static Int_t didacticCounterWorst(0);
852 if(gRandom->Uniform(0, 100) > fPercentageOfFits) break;
853 TProfile* didacticProfile = (TProfile*)_tempSwap.Clone(Form("Fit_%i_1-CDF_%.3f_cen_%i_%s", didacticCounterWorst, CDF, fInCentralitySelection, detector.Data() ));
854 TF1* didactifFit = (TF1*)fFitModulation->Clone(Form("fit_%i_p_%.3f_cen_%i_%s", didacticCounterWorst, CDF, fInCentralitySelection, detector.Data()));
855 didacticProfile->GetListOfFunctions()->Add(didactifFit);
856 fOutputListBad->Add(didacticProfile);
857 didacticCounterWorst++;
861 switch (fFitModulationType) {
862 case kNoFit : break; // nothing to do
863 case kCombined : fFitModulation->SetParameter(7, 0); // no break
864 case kFourierSeries : fFitModulation->SetParameter(7, 0); // no break
865 default : { // needs to be done if there was a poor fit
866 fFitModulation->SetParameter(3, 0);
867 fFitModulation->SetParameter(0, fLocalRho->GetVal());
870 return kFALSE; // return false if the fit is rejected
874 //_____________________________________________________________________________
875 void AliAnalysisTaskLocalRho::FillAnalysisSummaryHistogram() const
877 // fill the analysis summary histrogram, saves all relevant analysis settigns
878 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
879 fHistAnalysisSummary->GetXaxis()->SetBinLabel(1, "fJetRadius");
880 fHistAnalysisSummary->SetBinContent(1, fJetRadius);
881 fHistAnalysisSummary->GetXaxis()->SetBinLabel(2, "fPtBiasJetTrack");
882 fHistAnalysisSummary->SetBinContent(2, fPtBiasJetTrack);
883 fHistAnalysisSummary->GetXaxis()->SetBinLabel(3, "fPtBiasJetClus");
884 fHistAnalysisSummary->SetBinContent(3, fPtBiasJetClus);
885 fHistAnalysisSummary->GetXaxis()->SetBinLabel(4, "fJetPtCut");
886 fHistAnalysisSummary->SetBinContent(4, fJetPtCut);
887 fHistAnalysisSummary->GetXaxis()->SetBinLabel(5, "fJetAreaCut");
888 fHistAnalysisSummary->SetBinContent(5, fJetAreaCut);
889 fHistAnalysisSummary->GetXaxis()->SetBinLabel(6, "fPercAreaCut");
890 fHistAnalysisSummary->SetBinContent(6, fPercAreaCut);
891 fHistAnalysisSummary->GetXaxis()->SetBinLabel(7, "fAreaEmcCut");
892 fHistAnalysisSummary->SetBinContent(7, fAreaEmcCut);
893 fHistAnalysisSummary->GetXaxis()->SetBinLabel(8, "fJetMinEta");
894 fHistAnalysisSummary->SetBinContent(8, fJetMinEta);
895 fHistAnalysisSummary->GetXaxis()->SetBinLabel(9, "fJetMaxEta");
896 fHistAnalysisSummary->SetBinContent(9, fJetMaxEta);
897 fHistAnalysisSummary->GetXaxis()->SetBinLabel(10, "fJetMinPhi");
898 fHistAnalysisSummary->SetBinContent(10, fJetMinPhi);
899 fHistAnalysisSummary->GetXaxis()->SetBinLabel(11, "fJetMaxPhi");
900 fHistAnalysisSummary->SetBinContent(11, fJetMaxPhi);
901 fHistAnalysisSummary->GetXaxis()->SetBinLabel(12, "fMaxClusterPt");
902 fHistAnalysisSummary->SetBinContent(12, fMaxClusterPt);
903 fHistAnalysisSummary->GetXaxis()->SetBinLabel(13, "fMaxTrackPt");
904 fHistAnalysisSummary->SetBinContent(13, fMaxTrackPt);
905 fHistAnalysisSummary->GetXaxis()->SetBinLabel(14, "fLeadingHadronType");
906 fHistAnalysisSummary->SetBinContent(14, fLeadingHadronType);
907 fHistAnalysisSummary->GetXaxis()->SetBinLabel(15, "fAnaType");
908 fHistAnalysisSummary->SetBinContent(15, fAnaType);
909 fHistAnalysisSummary->GetXaxis()->SetBinLabel(16, "fForceBeamType");
910 fHistAnalysisSummary->SetBinContent(16, fForceBeamType);
911 fHistAnalysisSummary->GetXaxis()->SetBinLabel(19, "fMinVz");
912 fHistAnalysisSummary->SetBinContent(19, fMinVz);
913 fHistAnalysisSummary->GetXaxis()->SetBinLabel(20, "fMaxVz");
914 fHistAnalysisSummary->SetBinContent(20, fMaxVz);
915 fHistAnalysisSummary->GetXaxis()->SetBinLabel(21, "fOffTrigger");
916 fHistAnalysisSummary->SetBinContent(21, fOffTrigger);
917 fHistAnalysisSummary->GetXaxis()->SetBinLabel(22, "fClusPtCut");
918 fHistAnalysisSummary->SetBinContent(22, fClusPtCut);
919 fHistAnalysisSummary->GetXaxis()->SetBinLabel(23, "fTrackPtCut");
920 fHistAnalysisSummary->SetBinContent(23, fTrackPtCut);
921 fHistAnalysisSummary->GetXaxis()->SetBinLabel(24, "fTrackMinEta");
922 fHistAnalysisSummary->SetBinContent(24, fTrackMinEta);
923 fHistAnalysisSummary->GetXaxis()->SetBinLabel(25, "fTrackMaxEta");
924 fHistAnalysisSummary->SetBinContent(25, fTrackMaxEta);
925 fHistAnalysisSummary->GetXaxis()->SetBinLabel(26, "fTrackMinPhi");
926 fHistAnalysisSummary->SetBinContent(26, fTrackMinPhi);
927 fHistAnalysisSummary->GetXaxis()->SetBinLabel(27, "fTrackMaxPhi");
928 fHistAnalysisSummary->SetBinContent(27, fTrackMaxPhi);
929 fHistAnalysisSummary->GetXaxis()->SetBinLabel(28, "fClusTimeCutLow");
930 fHistAnalysisSummary->SetBinContent(28, fClusTimeCutLow);
931 fHistAnalysisSummary->GetXaxis()->SetBinLabel(29, "fClusTimeCutUp");
932 fHistAnalysisSummary->SetBinContent(29, fClusTimeCutUp);
933 fHistAnalysisSummary->GetXaxis()->SetBinLabel(30, "fMinPtTrackInEmcal");
934 fHistAnalysisSummary->SetBinContent(30, fMinPtTrackInEmcal);
935 fHistAnalysisSummary->GetXaxis()->SetBinLabel(31, "fEventPlaneVsEmcal");
936 fHistAnalysisSummary->SetBinContent(31, fEventPlaneVsEmcal);
937 fHistAnalysisSummary->GetXaxis()->SetBinLabel(32, "fMinEventPlane");
938 fHistAnalysisSummary->SetBinContent(32, fMaxEventPlane);
939 fHistAnalysisSummary->GetXaxis()->SetBinLabel(34, "fitModulationType");
940 fHistAnalysisSummary->SetBinContent(34, (int)fFitModulationType);
941 fHistAnalysisSummary->GetXaxis()->SetBinLabel(35, "runModeType");
942 fHistAnalysisSummary->SetBinContent(35, (int)fRunModeType);
943 fHistAnalysisSummary->GetXaxis()->SetBinLabel(37, "iterator");
944 fHistAnalysisSummary->SetBinContent(37, 1.);
945 fHistAnalysisSummary->GetXaxis()->SetBinLabel(38, "fMinPvalue");
946 fHistAnalysisSummary->SetBinContent(38, fMinPvalue);
947 fHistAnalysisSummary->GetXaxis()->SetBinLabel(39, "fMaxPvalue");
948 fHistAnalysisSummary->SetBinContent(39, fMaxPvalue);
949 fHistAnalysisSummary->GetXaxis()->SetBinLabel(40, "fExcludeLeadingJetsFromFit");
950 fHistAnalysisSummary->SetBinContent(40, fExcludeLeadingJetsFromFit);
951 fHistAnalysisSummary->GetXaxis()->SetBinLabel(41, "fRebinSwapHistoOnTheFly");
952 fHistAnalysisSummary->SetBinContent(41, (int)fRebinSwapHistoOnTheFly);
953 fHistAnalysisSummary->GetXaxis()->SetBinLabel(42, "fUsePtWeight");
954 fHistAnalysisSummary->SetBinContent(42, (int)fUsePtWeight);
955 fHistAnalysisSummary->GetXaxis()->SetBinLabel(45, "fLocalJetMinEta");
956 fHistAnalysisSummary->SetBinContent(45,fLocalJetMinEta );
957 fHistAnalysisSummary->GetXaxis()->SetBinLabel(46, "fLocalJetMaxEta");
958 fHistAnalysisSummary->SetBinContent(46, fLocalJetMaxEta);
959 fHistAnalysisSummary->GetXaxis()->SetBinLabel(47, "fLocalJetMinPhi");
960 fHistAnalysisSummary->SetBinContent(47, fLocalJetMinPhi);
961 fHistAnalysisSummary->GetXaxis()->SetBinLabel(48, "fLocalJetMaxPhi");
962 fHistAnalysisSummary->SetBinContent(48, fLocalJetMaxPhi);
963 fHistAnalysisSummary->GetXaxis()->SetBinLabel(49, "fSoftTrackMinPt");
964 fHistAnalysisSummary->SetBinContent(49, fSoftTrackMinPt);
965 fHistAnalysisSummary->GetXaxis()->SetBinLabel(50, "fSoftTrackMaxPt");
966 fHistAnalysisSummary->SetBinContent(50, fSoftTrackMaxPt);
967 fHistAnalysisSummary->GetXaxis()->SetBinLabel(51, "fUseScaledRho");
968 fHistAnalysisSummary->SetBinContent(51, fUseScaledRho);
970 //_____________________________________________________________________________
971 void AliAnalysisTaskLocalRho::FillEventPlaneHistograms(Double_t psi2, Double_t psi3) const
973 // fill event plane histograms
974 if(fDebug > 0) printf("__FILE__ = %s \n __LINE __ %i , __FUNC__ %s \n ", __FILE__, __LINE__, __func__);
975 fHistPsi2[fInCentralitySelection]->Fill(psi2);
976 fHistPsi3[fInCentralitySelection]->Fill(psi3);
978 //_____________________________________________________________________________
979 void AliAnalysisTaskLocalRho::Terminate(Option_t *)
983 //_____________________________________________________________________________
984 void AliAnalysisTaskLocalRho::SetModulationFit(TF1* fit) {
985 // Set function to fit modulation
986 if (fFitModulation) delete fFitModulation;
987 fFitModulation = fit;