8 #include "TParticlePDG.h"
10 #include "esdTrackCuts/AliESDtrackCuts.h"
11 #include "AliPWG0Helper.h"
13 #include "AliAnalysisTask.h"
14 #include "AliAnalysisManager.h"
15 #include "AliESDEvent.h"
16 #include "AliESDInputHandler.h"
17 #include "AliESDVertex.h"
19 #include "AliMCEventHandler.h"
20 #include "AliMCEvent.h"
24 #include "AliCutTask.h"
26 // simple task that runs the esd track cuts to evaluate the basic plots created during the cuts
30 //________________________________________________________________________
31 AliCutTask::AliCutTask(const char *name) :
32 AliAnalysisTask(name, ""), fESD(0), fTrackCuts(0),
33 fAnalysisMode(AliPWG0Helper::kTPCITS),
34 fTrackCutsPrimaries(0),
35 fTrackCutsSecondaries(0), fVertex(0), fTriggerStats(0), fOutput(0),
40 // Define input and output slots here
41 DefineInput(0, TChain::Class());
42 DefineOutput(0, TList::Class());
45 //________________________________________________________________________
46 void AliCutTask::ConnectInputData(Option_t *)
48 // Connect ESD or AOD here
51 TTree* tree = dynamic_cast<TTree*> (GetInputData(0));
53 Printf("ERROR: Could not read chain from input slot 0");
55 // Disable all branches and enable only the needed ones
56 //tree->SetBranchStatus("*", kFALSE);
59 tree->SetBranchStatus("fTriggerMask", kTRUE);
60 tree->SetBranchStatus("fTracks.*", kTRUE);
61 tree->SetBranchStatus("fSPDVertex*", kTRUE);
64 tree->SetBranchStatus("TriggerMask", kTRUE);
65 tree->SetBranchStatus("AliESDHeader", kTRUE);
66 //AliPWG0Helper::SetBranchStatusRecursive(tree, "Tracks", kTRUE);
67 //AliPWG0Helper::SetBranchStatusRecursive(tree, "SPDVertex", kTRUE);
69 AliESDInputHandler *esdH = dynamic_cast<AliESDInputHandler*> (AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler());
72 Printf("ERROR: Could not get ESDInputHandler");
74 fESD = esdH->GetEvent();
78 //________________________________________________________________________
79 void AliCutTask::CreateOutputObjects()
87 fOutput->Add(fTrackCuts);
88 if (fTrackCutsPrimaries)
89 fOutput->Add(fTrackCutsPrimaries);
90 if (fTrackCutsSecondaries)
91 fOutput->Add(fTrackCutsSecondaries);
93 fVertex = new TH1F("fVertex", "fVertex;z vtx (cm);Count", 201, -20, 20);
94 fOutput->Add(fVertex);
96 fTriggerStats = new TH1F("fTriggerStats", "fTriggerStats;trigger;Count", 5, -0.5, 4.5);
97 fTriggerStats->GetXaxis()->SetBinLabel(1, "!MB1 & !MB2");
98 fTriggerStats->GetXaxis()->SetBinLabel(2, "MB1");
99 fTriggerStats->GetXaxis()->SetBinLabel(3, "MB2");
100 fTriggerStats->GetXaxis()->SetBinLabel(4, "ITS_SPD_GFO_L0");
101 fTriggerStats->GetXaxis()->SetBinLabel(5, "VZERO_OR_LEFT | VZERO_OR_RIGHT");
102 fOutput->Add(fTriggerStats);
104 fPrimStats = new TH1F("fPrimStats", "fPrimStats", 8, 0.5, 8.5);
105 fPrimStats->GetXaxis()->SetBinLabel(1, "Primary accepted once");
106 fPrimStats->GetXaxis()->SetBinLabel(2, "Primary accepted more than once");
107 fPrimStats->GetXaxis()->SetBinLabel(3, "Primary accepted more than once (count)");
108 fPrimStats->GetXaxis()->SetBinLabel(4, "Primary track rejected");
109 fPrimStats->GetXaxis()->SetBinLabel(5, "Primary track rejected (count)");
110 fPrimStats->GetXaxis()->SetBinLabel(6, "Primary track rejected, but other track accepted");
111 fPrimStats->GetXaxis()->SetBinLabel(7, "Primary track rejected, but other track accepted (count)");
112 fOutput->Add(fPrimStats);
114 // disable info messages of AliMCEvent (per event)
115 AliLog::SetClassDebugLevel("AliMCEvent", AliLog::kWarning - AliLog::kDebug + 1);
118 //________________________________________________________________________
119 void AliCutTask::Exec(Option_t *)
122 // Called for each event
125 Printf("ERROR: fESD not available");
130 PostData(0, fOutput);
132 //fESD->GetVertex()->Print();
134 if (!AliPWG0Helper::IsEventTriggered(fESD->GetTriggerMask(), AliPWG0Helper::kMB1) && !AliPWG0Helper::IsEventTriggered(fESD->GetTriggerMask(), AliPWG0Helper::kMB2))
135 fTriggerStats->Fill(0);
137 if (AliPWG0Helper::IsEventTriggered(fESD->GetTriggerMask(), AliPWG0Helper::kMB1))
138 fTriggerStats->Fill(1);
140 if (AliPWG0Helper::IsEventTriggered(fESD->GetTriggerMask(), AliPWG0Helper::kMB2))
141 fTriggerStats->Fill(2);
143 if (fESD->GetTriggerMask() & (0x1 << 14))
144 fTriggerStats->Fill(3);
146 if (fESD->GetTriggerMask() & 1 || fESD->GetTriggerMask() & 2)
147 fTriggerStats->Fill(4);
149 //if (fESD->GetTriggerMask() & (0x1 << 14) == 0)
150 if (!AliPWG0Helper::IsEventTriggered(fESD->GetTriggerMask(), AliPWG0Helper::kMB2))
153 // get the ESD vertex
154 const AliESDVertex* vtxESD = AliPWG0Helper::GetVertex(fESD, fAnalysisMode);
158 Printf("No vertex. Skipping event");
162 Printf("There are %d tracks in this event", fESD->GetNumberOfTracks());
163 Int_t acceptedTracks = fTrackCuts->CountAcceptedTracks(fESD);
164 Printf("Accepted %d tracks", acceptedTracks);
166 if (fTrackCutsPrimaries && fTrackCutsSecondaries)
168 AliMCEventHandler* eventHandler = dynamic_cast<AliMCEventHandler*> (AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler());
170 Printf("ERROR: Could not retrieve MC event handler");
174 AliMCEvent* mcEvent = eventHandler->MCEvent();
176 Printf("ERROR: Could not retrieve MC event");
180 AliStack* stack = mcEvent->Stack();
183 Printf("ERROR: Stack not available");
187 // count if primaries are counted several times
188 Int_t max = stack->GetNprimary();
189 Int_t* primAcc = new Int_t[max];
190 Int_t* primRej = new Int_t[max];
191 for (Int_t i=0; i<max; i++)
197 for (Int_t trackId = 0; trackId < fESD->GetNumberOfTracks(); trackId++)
199 AliESDtrack* track = fESD->GetTrack(trackId);
202 Printf("UNEXPECTED: Could not get track with id %d", trackId);
206 if (track->GetLabel() == 0)
208 Printf("Track %d has no label. Skipping", trackId);
212 Int_t label = TMath::Abs(track->GetLabel());
213 if (stack->IsPhysicalPrimary(label) == kTRUE)
217 Printf("Warning label %d is higher than number of primaries %d", label, max);
221 if (fTrackCutsPrimaries->AcceptTrack(track))
231 if (!stack->Particle(label)) {
232 Printf("ERROR: Could not get particle with label %d", label);
236 // Deuteron is ok, but missing in Pdg particles in root
237 if (stack->Particle(label)->GetPdgCode() != 10010020) {
238 if (!stack->Particle(label)->GetPDG()) {
239 Printf("ERROR: Could not get PDG particle of particle with label %d (pdg code is %d)", label, stack->Particle(label)->GetPdgCode());
240 stack->Particle(label)->Print();
244 if (stack->Particle(label)->GetPDG()->Charge() == 0) {
245 Printf("Particle %d has 0 charge. Skipping.", label);
250 fTrackCutsSecondaries->AcceptTrack(track);
254 for (Int_t i=0; i<max; i++) {
255 if (primAcc[i] == 1) {
257 } else if (primAcc[i] > 1) {
259 fPrimStats->Fill(3, primAcc[i]);
262 if (primRej[i] > 0) {
263 if (primAcc[i] == 0) {
265 fPrimStats->Fill(5, primRej[i]);
266 } else if (primAcc[i] > 0) {
268 fPrimStats->Fill(7, primRej[i]);
277 // get the ESD vertex
278 fVertex->Fill(vtxESD->GetZv());
281 //________________________________________________________________________
282 void AliCutTask::Terminate(Option_t *)
284 // Draw result to the screen
285 // Called once at the end of the query
287 fOutput = dynamic_cast<TList*> (GetOutputData(0));
289 Printf("ERROR: fOutput not available");
293 fTrackCuts = dynamic_cast<AliESDtrackCuts*> (fOutput->FindObject("AliESDtrackCuts"));
295 Printf("ERROR: fTrackCuts not available");
299 fVertex = dynamic_cast<TH1F*> (fOutput->FindObject("fVertex"));
301 Printf("ERROR: fVertex not available");
305 fTriggerStats = dynamic_cast<TH1F*> (fOutput->FindObject("fTriggerStats"));
306 if (!fTriggerStats) {
307 Printf("ERROR: fTriggerStats not available");
311 fTrackCutsPrimaries = dynamic_cast<AliESDtrackCuts*> (fOutput->FindObject("fTrackCutsPrimaries"));
312 fTrackCutsSecondaries = dynamic_cast<AliESDtrackCuts*> (fOutput->FindObject("fTrackCutsSecondaries"));
314 TFile* file = TFile::Open("trackCuts.root", "RECREATE");
316 fTrackCuts->SaveHistograms();
318 fTriggerStats->Write();
320 if (fTrackCutsPrimaries)
321 fTrackCutsPrimaries->SaveHistograms();
323 if (fTrackCutsSecondaries)
324 fTrackCutsSecondaries->SaveHistograms();
331 Printf("Writting results to trackCuts.root.");
333 fTrackCuts->DrawHistograms();
339 fTriggerStats->Draw();
342 void AliCutTask::EnableSecondaryStudy()
345 // clones the fTrackCuts
349 Printf("ERROR: fTrackCuts 0. Do not call this function before SetTrackCuts");
353 fTrackCutsPrimaries = dynamic_cast<AliESDtrackCuts*> (fTrackCuts->Clone("fTrackCutsPrimaries"));
354 fTrackCutsSecondaries = dynamic_cast<AliESDtrackCuts*> (fTrackCuts->Clone("fTrackCutsSecondaries"));