4 #include <TInterpreter.h>
11 #include "AliFMDAnalysisTaskDndeta.h"
12 #include "AliAnalysisManager.h"
13 #include "AliESDFMD.h"
14 #include "AliESDEvent.h"
15 #include "AliAODEvent.h"
16 #include "AliAODHandler.h"
17 #include "AliMCEventHandler.h"
20 #include "AliESDVertex.h"
22 #include "AliFMDAnaParameters.h"
23 #include "AliFMDGeometry.h"
24 #include "AliGenEventHeader.h"
25 #include "AliHeader.h"
26 #include "TDatabasePDG.h"
27 #include "TParticlePDG.h"
28 #include "AliFMDStripIndex.h"
29 ClassImp(AliFMDAnalysisTaskDndeta)
32 AliFMDAnalysisTaskDndeta::AliFMDAnalysisTaskDndeta()
45 // Default constructor
46 DefineInput (0, TList::Class());
47 DefineOutput(0, TList::Class());
49 //_____________________________________________________________________
50 AliFMDAnalysisTaskDndeta::AliFMDAnalysisTaskDndeta(const char* name, Bool_t SE):
51 AliAnalysisTask(name, "Density"),
66 DefineInput (0, TList::Class());
67 DefineInput(1, TObjString::Class());
68 DefineOutput(0, TList::Class());
72 //_____________________________________________________________________
73 void AliFMDAnalysisTaskDndeta::CreateOutputObjects()
75 AliFMDAnaParameters* pars = AliFMDAnaParameters::Instance();
77 fArray.SetName("FMD");
81 fOutputList = new TList();
82 fOutputList->SetName("BackgroundCorrected");
87 TH1F* hPrimVertexBin = 0;
90 TH2F* hBgTmp = pars->GetBackgroundCorrection(1, 'I', 0);
91 TH1F* hPrimary = new TH1F("hMultvsEta","hMultvsEta",
93 hBgTmp->GetXaxis()->GetXmin(),
94 hBgTmp->GetXaxis()->GetXmax());
96 fOutputList->Add(hPrimary);
97 Int_t nVtxbins = pars->GetNvtxBins();
100 for(Int_t det =1; det<=3;det++)
102 TObjArray* detArray = new TObjArray();
103 detArray->SetName(Form("FMD%d",det));
104 fArray.AddAtAndExpand(detArray,det);
105 Int_t nRings = (det==1 ? 1 : 2);
106 for(Int_t ring = 0;ring<nRings;ring++)
108 Char_t ringChar = (ring == 0 ? 'I' : 'O');
109 Int_t nSec = (ring == 0 ? 20 : 40);
111 TObjArray* vtxArray = new TObjArray();
112 vtxArray->SetName(Form("FMD%d%c",det,ringChar));
113 detArray->AddAtAndExpand(vtxArray,ring);
114 for(Int_t i = 0; i< nVtxbins; i++) {
115 TH2F* hBg = pars->GetBackgroundCorrection(det, ringChar, i);
116 hMult = new TH2F(Form("dNdeta_FMD%d%c_vtxbin%d",det,ringChar,i),Form("dNdeta_FMD%d%c_vtxbin%d",det,ringChar,i),
118 hBg->GetXaxis()->GetXmin(),
119 hBg->GetXaxis()->GetXmax(),
120 nSec, 0, 2*TMath::Pi());
122 hHits = new TH1F(Form("hHits_FMD%d%c_vtxbin%d",det,ringChar,i),Form("hHits_FMD%d%c_vtxbin%d",det,ringChar,i),
124 hBg->GetXaxis()->GetXmin(),
125 hBg->GetXaxis()->GetXmax());
131 fOutputList->Add(hMult);
132 fOutputList->Add(hHits);
133 vtxArray->AddAtAndExpand(hMult,i);
139 for(Int_t i = 0; i< nVtxbins; i++) {
141 hPrimVertexBin = new TH1F(Form("primmult_vtxbin%d",i),
142 Form("primmult_vtxbin%d",i),
144 hBgTmp->GetXaxis()->GetXmin(),
145 hBgTmp->GetXaxis()->GetXmax());
146 hPrimVertexBin->Sumw2();
147 fOutputList->Add(hPrimVertexBin);
151 fNevents.SetBins(nVtxbins,0,nVtxbins);
152 fNevents.SetName("nEvents");
153 fNMCevents.SetBins(nVtxbins,0,nVtxbins);
154 fNMCevents.SetName("nMCEvents");
155 fOutputList->Add(&fNevents);
156 fOutputList->Add(&fNMCevents);
159 //_____________________________________________________________________
160 void AliFMDAnalysisTaskDndeta::ConnectInputData(Option_t */*option*/)
163 fInputList = (TList*)GetInputData(0);
164 fVertexString = (TObjString*)GetInputData(1);
167 //_____________________________________________________________________
168 void AliFMDAnalysisTaskDndeta::Exec(Option_t */*option*/)
170 Int_t vtxbin = fVertexString->GetString().Atoi();
171 fNevents.Fill(vtxbin);
172 for(UShort_t det=1;det<=3;det++) {
173 //TObjArray* detInputArray = (TObjArray*)fInputArray->At(det);
174 TObjArray* detArray = (TObjArray*)fArray.At(det);
175 Int_t nRings = (det==1 ? 1 : 2);
176 for (UShort_t ir = 0; ir < nRings; ir++) {
177 Char_t ringChar = (ir == 0 ? 'I' : 'O');
178 //TObjArray* vtxInputArray = (TObjArray*)detInputArray->At(ir);
179 TObjArray* vtxArray = (TObjArray*)detArray->At(ir);
180 TH2F* hMultTotal = (TH2F*)vtxArray->At(vtxbin);
183 TH2F* hMultInput = (TH2F*)fInputList->FindObject(Form("mult_FMD%d%c_vtxbin%d",det,ringChar,vtxbin));
185 hMultTotal->Add(hMultInput);
195 PostData(0, fOutputList);
199 //_____________________________________________________________________
200 void AliFMDAnalysisTaskDndeta::Terminate(Option_t */*option*/) {
203 AliFMDAnaParameters* pars = AliFMDAnaParameters::Instance();
205 Int_t nVtxbins = pars->GetNvtxBins();
207 for(UShort_t det=1;det<=3;det++) {
208 TObjArray* detArray = (TObjArray*)fArray.At(det);
209 Int_t nRings = (det==1 ? 1 : 2);
210 for (UShort_t ir = 0; ir < nRings; ir++) {
211 TObjArray* vtxArray = (TObjArray*)detArray->At(ir);
212 Char_t ringChar = (ir == 0 ? 'I' : 'O');
213 for(Int_t i =0; i<nVtxbins; i++) {
214 TH2F* hMultTotal = (TH2F*)vtxArray->At(i);
215 TH1D* hMultProj = hMultTotal->ProjectionX(Form("dNdeta_FMD%d%c_vtxbin%d_proj",det,ringChar,i),1,hMultTotal->GetNbinsY());
216 fOutputList->Add(hMultProj);
222 //_____________________________________________________________________
223 void AliFMDAnalysisTaskDndeta::ProcessPrimary() {
225 fLastTrackByStrip.Reset(-1);
227 AliFMDAnaParameters* pars = AliFMDAnaParameters::Instance();
229 AliMCParticle* particle = 0;
230 AliStack* stack = fMCevent->Stack();
232 TH1F* hPrimary = (TH1F*)fOutputList->FindObject("hMultvsEta");
233 AliHeader* header = fMCevent->Header();
234 AliGenEventHeader* genHeader = header->GenEventHeader();
237 genHeader->PrimaryVertex(vertex);
238 if(TMath::Abs(vertex.At(2)) > pars->GetVtxCutZ())
240 Double_t delta = 2*pars->GetVtxCutZ()/pars->GetNvtxBins();
241 Double_t vertexBinDouble = (vertex.At(2) + pars->GetVtxCutZ()) / delta;
242 Int_t vertexBin = (Int_t)vertexBinDouble;
244 Bool_t firstTrack = kTRUE;
245 Int_t nTracks = fMCevent->GetNumberOfTracks();
246 for(Int_t i = 0 ;i<nTracks;i++) {
247 particle = fMCevent->GetTrack(i);
251 if(stack->IsPhysicalPrimary(i) && particle->Charge() != 0) {
252 hPrimary->Fill(particle->Eta());
255 TH1F* hPrimVtxBin = (TH1F*)fOutputList->FindObject(Form("primmult_vtxbin%d",vertexBin));
256 hPrimVtxBin->Fill(particle->Eta());
258 fNMCevents.Fill(vertexBin);
263 for(Int_t j=0; j<particle->GetNumberOfTrackReferences();j++) {
265 AliTrackReference* ref = particle->GetTrackReference(j);
266 UShort_t det,sec,strip;
268 if(ref->DetectorId() != AliTrackReference::kFMD)
270 AliFMDStripIndex::Unpack(ref->UserId(),det,ring,sec,strip);
271 Float_t thisStripTrack = fLastTrackByStrip.operator()(det,ring,sec,strip);
272 if(particle->Charge() != 0 && i != thisStripTrack ) {
274 AliFMDGeometry* fmdgeo = AliFMDGeometry::Instance();
275 fmdgeo->Detector2XYZ(det,ring,sec,strip,x,y,z);
277 Float_t phi = TMath::ATan2(y,x);
278 if(phi<0) phi = phi+2*TMath::Pi();
279 Float_t r = TMath::Sqrt(TMath::Power(x,2)+TMath::Power(y,2));
280 Float_t theta = TMath::ATan2(r,z-vertex.At(2));
281 Float_t eta = -1*TMath::Log(TMath::Tan(0.5*theta));
282 TH1F* hHits = (TH1F*)fOutputList->FindObject(Form("hHits_FMD%d%c_vtxbin%d",det,ring,vertexBin));
284 Float_t nstrips = (ring =='O' ? 256 : 512);
286 // if(det == 1 && ring == 'I')
287 // std::cout<<"hit in FMD 1I "<<sec<<" "<<strip<<" "<<eta<<" "<<phi<<std::endl;
288 fLastTrackByStrip.operator()(det,ring,sec,strip) = (Float_t)i;
291 fLastTrackByStrip.operator()(det,ring,sec,strip-1) = (Float_t)i;
292 if(strip < (nstrips - 1))
293 fLastTrackByStrip.operator()(det,ring,sec,strip+1) = (Float_t)i;
303 //_____________________________________________________________________