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4437a0d2 | 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 | // Class AliHFEitsPIDqa | |
17 | // Monitoring ITS PID in the HFE PID montioring framework. The following | |
18 | // quantities are monitored: | |
19 | // ITS dE/dx (Number of sigmas) | |
20 | // (Always as function of momentum, particle species and centrality | |
21 | // before and after cut) | |
22 | // More information about the PID monitoring framework can be found in | |
23 | // AliHFEpidQAmanager.cxx and AliHFEdetPIDqa.cxx | |
24 | // | |
25 | // Author: | |
26 | // Yvonne Pachmayer <pachmay@physi.uni-heidelberg.de> | |
27 | // | |
28 | #include <TBrowser.h> | |
29 | #include <TClass.h> | |
30 | #include <TH2.h> | |
31 | #include <THnSparse.h> | |
32 | #include <TString.h> | |
33 | ||
34 | #include "AliAODTrack.h" | |
35 | #include "AliESDtrack.h" | |
36 | #include "AliLog.h" | |
37 | #include "AliPID.h" | |
38 | #include "AliPIDResponse.h" | |
39 | ||
40 | #include "AliHFEcollection.h" | |
41 | #include "AliHFEpidBase.h" | |
42 | #include "AliHFEpidQAmanager.h" | |
43 | #include "AliHFEpidITS.h" | |
44 | #include "AliHFEtools.h" | |
45 | #include "AliHFEitsPIDqa.h" | |
46 | ||
47 | ClassImp(AliHFEitsPIDqa) | |
48 | ||
49 | //_________________________________________________________ | |
50 | AliHFEitsPIDqa::AliHFEitsPIDqa(): | |
51 | AliHFEdetPIDqa() | |
52 | , fHistos(NULL) | |
53 | , fBrowseCentrality(-1) | |
54 | { | |
55 | // | |
56 | // Dummy constructor | |
57 | // | |
58 | } | |
59 | ||
60 | //_________________________________________________________ | |
61 | AliHFEitsPIDqa::AliHFEitsPIDqa(const char* name): | |
62 | AliHFEdetPIDqa(name, "QA for ITS") | |
63 | , fHistos(NULL) | |
64 | , fBrowseCentrality(-1) | |
65 | { | |
66 | // | |
67 | // Default constructor | |
68 | // | |
69 | } | |
70 | ||
71 | //_________________________________________________________ | |
72 | AliHFEitsPIDqa::AliHFEitsPIDqa(const AliHFEitsPIDqa &o): | |
73 | AliHFEdetPIDqa(o) | |
74 | , fHistos(NULL) | |
75 | , fBrowseCentrality(o.fBrowseCentrality) | |
76 | { | |
77 | // | |
78 | // Copy constructor | |
79 | // | |
80 | o.Copy(*this); | |
81 | } | |
82 | ||
83 | //_________________________________________________________ | |
84 | AliHFEitsPIDqa &AliHFEitsPIDqa::operator=(const AliHFEitsPIDqa &o){ | |
85 | // | |
86 | // Do assignment | |
87 | // | |
88 | AliHFEdetPIDqa::operator=(o); | |
89 | if(&o != this) o.Copy(*this); | |
90 | return *this; | |
91 | } | |
92 | ||
93 | //_________________________________________________________ | |
94 | AliHFEitsPIDqa::~AliHFEitsPIDqa(){ | |
95 | // | |
96 | // Destructor | |
97 | // | |
98 | if(fHistos) delete fHistos; | |
99 | } | |
100 | ||
101 | //_________________________________________________________ | |
102 | void AliHFEitsPIDqa::Copy(TObject &o) const { | |
103 | // | |
104 | // Make copy | |
105 | // | |
106 | AliHFEitsPIDqa &target = dynamic_cast<AliHFEitsPIDqa &>(o); | |
107 | if(target.fHistos){ | |
108 | delete target.fHistos; | |
109 | target.fHistos = NULL; | |
110 | } | |
111 | if(fHistos) target.fHistos = new AliHFEcollection(*fHistos); | |
112 | target.fBrowseCentrality = fBrowseCentrality; | |
113 | } | |
114 | ||
115 | //_________________________________________________________ | |
116 | Long64_t AliHFEitsPIDqa::Merge(TCollection *coll){ | |
117 | // | |
118 | // Merge with other objects | |
119 | // | |
120 | if(!coll) return 0; | |
121 | if(coll->IsEmpty()) return 1; | |
122 | ||
123 | TIter it(coll); | |
124 | AliHFEitsPIDqa *refQA = NULL; | |
125 | TObject *o = NULL; | |
126 | Long64_t count = 0; | |
127 | TList listHistos; | |
128 | while((o = it())){ | |
129 | refQA = dynamic_cast<AliHFEitsPIDqa *>(o); | |
130 | if(!refQA) continue; | |
131 | ||
132 | listHistos.Add(refQA->fHistos); | |
133 | count++; | |
134 | } | |
135 | fHistos->Merge(&listHistos); | |
136 | return count + 1; | |
137 | } | |
138 | ||
139 | //_________________________________________________________ | |
140 | void AliHFEitsPIDqa::Browse(TBrowser *b){ | |
141 | // | |
142 | // Browse the PID QA | |
143 | // | |
144 | if(b){ | |
145 | if(fHistos){ | |
146 | b->Add(fHistos, fHistos->GetName()); | |
147 | ||
148 | // Make Projections of the nsigma Spectra and add them to a new Folder | |
149 | TString specnames[AliPID::kSPECIES+1] = {"All", "Electrons", "Muon", "Pions", "Kaon", "Protons"}; | |
150 | Int_t specind[AliPID::kSPECIES+1] = {-1, AliPID::kElectron, AliPID::kMuon, AliPID::kPion, AliPID::kKaon, AliPID::kProton}; | |
151 | TList *listNsigma = new TList; | |
152 | listNsigma->SetOwner(); | |
153 | ||
154 | TH2 *hptr = NULL; | |
155 | for(Int_t ispec = 0; ispec < AliPID::kSPECIES+1; ispec++){ | |
156 | for(Int_t istep = 0; istep < 2; istep++){ | |
157 | hptr = MakeSpectrumNSigma(static_cast<AliHFEdetPIDqa::EStep_t>(istep), specind[ispec], fBrowseCentrality); | |
158 | hptr->SetName(Form("hITSnsigma%s%s%s", specnames[ispec].Data(), istep == 0 ? "Before" : "After", fBrowseCentrality == -1 ? "MinBias" : Form("Cent%d", fBrowseCentrality))); | |
159 | listNsigma->Add(hptr); | |
160 | } | |
161 | } | |
162 | ||
163 | b->Add(listNsigma, "Projections NSigma"); | |
164 | } | |
165 | } | |
166 | } | |
167 | ||
168 | //_________________________________________________________ | |
169 | void AliHFEitsPIDqa::Initialize(){ | |
170 | // | |
171 | // Define Histograms | |
172 | // | |
173 | ||
174 | fHistos = new AliHFEcollection("itsqahistos", "Collection of ITS QA histograms"); | |
175 | ||
176 | // Make common binning | |
177 | const Int_t kNdim = 5; | |
178 | const Int_t kPIDbins = AliPID::kSPECIES + 1; | |
179 | const Int_t kSteps = 2; | |
180 | const Int_t kCentralityBins = 11; | |
181 | const Double_t kMinPID = -1; | |
182 | const Double_t kMinP = 0.; | |
183 | const Double_t kMaxPID = (Double_t)AliPID::kSPECIES; | |
184 | const Double_t kMaxP = 2.; | |
185 | ||
186 | // Quantities where one can switch between low and high resolution | |
187 | Int_t kPbins = fQAmanager->HasHighResolutionHistos() ? 100 : 10; | |
188 | Int_t kSigmaBins = fQAmanager->HasHighResolutionHistos() ? 1400 : 240; | |
189 | ||
190 | // 1st histogram: ITS sigmas: (species, p, nsigma, step, centrality) | |
191 | Int_t nBinsSigma[kNdim] = {kPIDbins, kPbins, kSigmaBins, kSteps, kCentralityBins}; | |
192 | Double_t minSigma[kNdim] = {kMinPID, kMinP, -12., 0., 0.}; | |
193 | Double_t maxSigma[kNdim] = {kMaxPID, kMaxP, 12., 2., 11.}; | |
194 | fHistos->CreateTHnSparse("itsnSigma", "ITS signal; species; p [GeV/c]; ITS signal [a.u.]; Selection Step; Centrality; Eta", kNdim, nBinsSigma, minSigma, maxSigma); | |
195 | ||
196 | // General ITS QA | |
197 | } | |
198 | ||
199 | //_________________________________________________________ | |
200 | void AliHFEitsPIDqa::ProcessTrack(const AliHFEpidObject *track, AliHFEdetPIDqa::EStep_t step){ | |
201 | // | |
202 | // Fill ITS histograms | |
203 | // | |
204 | AliDebug(1, Form("QA started for ITS PID for step %d", (Int_t)step)); | |
205 | AliHFEpidObject::AnalysisType_t anatype = track->IsESDanalysis() ? AliHFEpidObject::kESDanalysis : AliHFEpidObject::kAODanalysis; | |
206 | Float_t centrality = track->GetCentrality(); | |
207 | Int_t species = track->GetAbInitioPID(); | |
208 | if(species >= AliPID::kSPECIES) species = -1; | |
209 | ||
210 | AliHFEpidITS *itspid = dynamic_cast<AliHFEpidITS *>(fQAmanager->GetDetectorPID(AliHFEpid::kITSpid)); | |
211 | const AliPIDResponse *pidResponse = itspid ? itspid->GetPIDResponse() : NULL; | |
212 | Double_t contentSignal[5]; | |
213 | contentSignal[0] = species; | |
214 | contentSignal[1] = track->GetRecTrack()->P(); | |
215 | contentSignal[2] = pidResponse ? pidResponse->NumberOfSigmasITS(track->GetRecTrack(), AliPID::kElectron) : 0.; | |
216 | contentSignal[3] = step; | |
217 | contentSignal[4] = centrality; | |
218 | ||
219 | fHistos->Fill("itsnSigma", contentSignal); | |
220 | } | |
221 | ||
222 | //_________________________________________________________ | |
223 | TH2 *AliHFEitsPIDqa::MakeSpectrumNSigma(AliHFEdetPIDqa::EStep_t istep, Int_t species, Int_t centralityClass){ | |
224 | // | |
225 | // Plot the Spectrum | |
226 | // | |
227 | THnSparseF *hSignal = dynamic_cast<THnSparseF *>(fHistos->Get("itsnSigma")); | |
228 | if(!hSignal) return NULL; | |
229 | hSignal->GetAxis(3)->SetRange(istep + 1, istep + 1); | |
230 | if(species >= 0 && species < AliPID::kSPECIES) | |
231 | hSignal->GetAxis(0)->SetRange(2 + species, 2 + species); | |
232 | TString hname = Form("hITSsigma%s", istep == AliHFEdetPIDqa::kBeforePID ? "before" : "after"), | |
233 | htitle = Form("ITS dE/dx Spectrum[#sigma] %s selection", istep == AliHFEdetPIDqa::kBeforePID ? "before" : "after"); | |
234 | if(species > -1){ | |
235 | hname += AliPID::ParticleName(species); | |
236 | htitle += Form(" for %ss", AliPID::ParticleName(species)); | |
237 | } | |
238 | TString centname, centtitle; | |
239 | Bool_t hasCentralityInfo = kTRUE; | |
240 | if(centralityClass > -1){ | |
241 | if(hSignal->GetNdimensions() < 5){ | |
242 | AliError("Centrality Information not available"); | |
243 | centname = centtitle = "MinBias"; | |
244 | hasCentralityInfo= kFALSE; | |
245 | } else { | |
246 | // Project centrality classes | |
247 | // -1 is Min. Bias | |
248 | hSignal->GetAxis(4)->SetRange(centralityClass+1, centralityClass+1); | |
249 | centname = Form("Cent%d", centralityClass); | |
250 | centtitle = Form(" Centrality %d", centralityClass); | |
251 | } | |
252 | } else { | |
253 | centname = centtitle = "MinBias"; | |
254 | hasCentralityInfo= kFALSE; | |
255 | } | |
256 | hname += centtitle; | |
257 | htitle += centtitle; | |
258 | ||
259 | TH2 *hTmp = hSignal->Projection(2,1); | |
260 | hTmp->SetName(hname.Data()); | |
261 | hTmp->SetTitle(htitle.Data()); | |
262 | hTmp->SetStats(kFALSE); | |
263 | hTmp->GetXaxis()->SetTitle("p [GeV/c]"); | |
264 | hTmp->GetYaxis()->SetTitle("ITS dE/dx - <dE/dx>|_{el} [#sigma]"); | |
265 | hSignal->GetAxis(3)->SetRange(0, hSignal->GetAxis(3)->GetNbins()); | |
266 | hSignal->GetAxis(0)->SetRange(0, hSignal->GetAxis(0)->GetNbins()); | |
267 | if(hasCentralityInfo) hSignal->GetAxis(4)->SetRange(0, hSignal->GetAxis(4)->GetNbins()); | |
268 | return hTmp; | |
269 | } | |
270 |