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), fTrackCutsPrimaries(0),
33 fTrackCutsSecondaries(0), fVertex(0), fTriggerStats(0), fOutput(0)
37 // Define input and output slots here
38 DefineInput(0, TChain::Class());
39 DefineOutput(0, TList::Class());
42 //________________________________________________________________________
43 void AliCutTask::ConnectInputData(Option_t *)
45 // Connect ESD or AOD here
48 TTree* tree = dynamic_cast<TTree*> (GetInputData(0));
50 Printf("ERROR: Could not read chain from input slot 0");
52 // Disable all branches and enable only the needed ones
53 //tree->SetBranchStatus("*", kFALSE);
54 //tree->SetBranchStatus("*Calo*", kFALSE);
56 tree->SetBranchStatus("fTracks.*", kTRUE);
57 tree->SetBranchStatus("Tracks.*", kTRUE);
59 tree->SetBranchStatus("fTriggerMask", kTRUE);
60 tree->SetBranchStatus("AliESDHeader", kTRUE);
62 tree->SetBranchStatus("fSPDVertex*", kTRUE);
64 // unclear how to enable vertex branch with new ESD format
65 tree->SetBranchStatus("SPDVertex.*", kTRUE);
66 tree->SetBranchStatus("*fPosition*", kTRUE);
67 tree->SetBranchStatus("*fPosition[3]", 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 // disable info messages of AliMCEvent (per event)
105 AliLog::SetClassDebugLevel("AliMCEvent", AliLog::kWarning - AliLog::kDebug + 1);
108 //________________________________________________________________________
109 void AliCutTask::Exec(Option_t *)
112 // Called for each event
115 Printf("ERROR: fESD not available");
120 PostData(0, fOutput);
122 //fESD->GetVertex()->Print();
124 if (!AliPWG0Helper::IsEventTriggered(fESD->GetTriggerMask(), AliPWG0Helper::kMB1) && !AliPWG0Helper::IsEventTriggered(fESD->GetTriggerMask(), AliPWG0Helper::kMB2))
125 fTriggerStats->Fill(0);
127 if (AliPWG0Helper::IsEventTriggered(fESD->GetTriggerMask(), AliPWG0Helper::kMB1))
128 fTriggerStats->Fill(1);
130 if (AliPWG0Helper::IsEventTriggered(fESD->GetTriggerMask(), AliPWG0Helper::kMB2))
131 fTriggerStats->Fill(2);
133 if (fESD->GetTriggerMask() & (0x1 << 14))
134 fTriggerStats->Fill(3);
136 if (fESD->GetTriggerMask() & 1 || fESD->GetTriggerMask() & 2)
137 fTriggerStats->Fill(4);
139 //if (!AliPWG0Helper::IsEventTriggered(fESD->GetTriggerMask()), AliPWG0Helper::kMB1)
140 if (fESD->GetTriggerMask() & (0x1 << 14) == 0)
143 if (!AliPWG0Helper::IsVertexReconstructed(fESD->GetVertex()))
146 //Printf("There are %d tracks in this event", fESD->GetNumberOfTracks());
147 fTrackCuts->CountAcceptedTracks(fESD);
149 if (fTrackCutsPrimaries && fTrackCutsSecondaries)
151 AliMCEventHandler* eventHandler = dynamic_cast<AliMCEventHandler*> (AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler());
153 Printf("ERROR: Could not retrieve MC event handler");
157 AliMCEvent* mcEvent = eventHandler->MCEvent();
159 Printf("ERROR: Could not retrieve MC event");
163 AliStack* stack = mcEvent->Stack();
166 Printf("ERROR: Stack not available");
170 for (Int_t trackId = 0; trackId < fESD->GetNumberOfTracks(); trackId++)
172 AliESDtrack* track = fESD->GetTrack(trackId);
175 Printf("UNEXPECTED: Could not get track with id %d", trackId);
179 if (track->GetLabel() == 0)
181 Printf("Track %d has no label. Skipping", trackId);
185 Int_t label = TMath::Abs(track->GetLabel());
186 if (stack->IsPhysicalPrimary(label) == kTRUE)
188 fTrackCutsPrimaries->AcceptTrack(track);
192 if (!stack->Particle(label)) {
193 Printf("ERROR: Could not get particle with label %d", label);
197 // Deuteron is ok, but missing in Pdg particles in root
198 if (stack->Particle(label)->GetPdgCode() != 10010020) {
199 if (!stack->Particle(label)->GetPDG()) {
200 Printf("ERROR: Could not get PDG particle of particle with label %d (pdg code is %d)", label, stack->Particle(label)->GetPdgCode());
201 stack->Particle(label)->Print();
205 if (stack->Particle(label)->GetPDG()->Charge() == 0) {
206 Printf("Particle %d has 0 charge. Skipping.", label);
211 fTrackCutsSecondaries->AcceptTrack(track);
216 // get the ESD vertex
217 fVertex->Fill(fESD->GetVertex()->GetZv());
220 //________________________________________________________________________
221 void AliCutTask::Terminate(Option_t *)
223 // Draw result to the screen
224 // Called once at the end of the query
226 fOutput = dynamic_cast<TList*> (GetOutputData(0));
228 Printf("ERROR: fOutput not available");
232 fTrackCuts = dynamic_cast<AliESDtrackCuts*> (fOutput->FindObject("AliESDtrackCuts"));
234 Printf("ERROR: fTrackCuts not available");
238 fVertex = dynamic_cast<TH1F*> (fOutput->FindObject("fVertex"));
240 Printf("ERROR: fVertex not available");
244 fTriggerStats = dynamic_cast<TH1F*> (fOutput->FindObject("fTriggerStats"));
245 if (!fTriggerStats) {
246 Printf("ERROR: fTriggerStats not available");
250 fTrackCutsPrimaries = dynamic_cast<AliESDtrackCuts*> (fOutput->FindObject("fTrackCutsPrimaries"));
251 fTrackCutsSecondaries = dynamic_cast<AliESDtrackCuts*> (fOutput->FindObject("fTrackCutsSecondaries"));
253 TFile* file = TFile::Open("trackCuts.root", "RECREATE");
255 fTrackCuts->SaveHistograms();
257 fTriggerStats->Write();
259 if (fTrackCutsPrimaries)
260 fTrackCutsPrimaries->SaveHistograms();
262 if (fTrackCutsSecondaries)
263 fTrackCutsSecondaries->SaveHistograms();
267 Printf("Writting results to trackCuts.root.");
271 fTrackCuts->DrawHistograms();
277 fTriggerStats->Draw();
280 void AliCutTask::EnableSecondaryStudy()
283 // clones the fTrackCuts
287 Printf("ERROR: fTrackCuts 0. Do not call this function before SetTrackCuts");
291 fTrackCutsPrimaries = dynamic_cast<AliESDtrackCuts*> (fTrackCuts->Clone("fTrackCutsPrimaries"));
292 fTrackCutsSecondaries = dynamic_cast<AliESDtrackCuts*> (fTrackCuts->Clone("fTrackCutsSecondaries"));