#include "TH1.h"
#include "TH2.h"
#include "TCanvas.h"
#include "THnSparse.h"
#include "AliHeader.h"
#include "AliInputEventHandler.h"
#include "AliAnalysisManager.h"
#include "AliGenEventHeader.h"
#include "AliStack.h"
#include "AliESDEvent.h"
#include "AliMCEvent.h"
#include "AliESDtrackCuts.h"
#include "AliLog.h"
#include "AliMultiplicity.h"
#include "AliTracker.h"
#include "AliCentrality.h"
#include "AlidNdPtEventCuts.h"
#include "AlidNdPtAcceptanceCuts.h"
#include "AliPhysicsSelection.h"
#include "AliTriggerAnalysis.h"
#include "AliPWG0Helper.h"
#include "AlidNdPtHelper.h"
#include "AliPtResolAnalysisPbPb.h"
using namespace std;
ClassImp(AliPtResolAnalysisPbPb)
AliPtResolAnalysisPbPb::AliPtResolAnalysisPbPb(): AlidNdPt(),
fAnalysisFolder(0),
fTrackParamHist(0),
fTrackParamHist2(0),
fCentralityEstimator(0)
{
Init();
}
AliPtResolAnalysisPbPb::AliPtResolAnalysisPbPb(Char_t* name, Char_t* title): AlidNdPt(name,title),
fAnalysisFolder(0),
fTrackParamHist(0),
fTrackParamHist2(0),
fCentralityEstimator(0)
{
Init();
}
AliPtResolAnalysisPbPb::~AliPtResolAnalysisPbPb() {
if(fAnalysisFolder) delete fAnalysisFolder; fAnalysisFolder=0;
if(fTrackParamHist) delete fTrackParamHist; fTrackParamHist=0;
if(fTrackParamHist2) delete fTrackParamHist2; fTrackParamHist2=0;
}
void AliPtResolAnalysisPbPb::Init(){
Int_t binsTrackParamHist[3]={400,300,11};
Double_t minTrackParamHist[3]={0,0,0};
Double_t maxTrackParamHist[3]={1,0.015,100};
Double_t centrBins[12] = {0.0,5.,10.,20.,30.,40.,50.,60.,70.,80.,90.,100};
fTrackParamHist = new THnSparseF("fTrackParamHist","1/pT:#sigma(1/pT):centrality",3,binsTrackParamHist,minTrackParamHist,maxTrackParamHist);
fTrackParamHist->SetBinEdges(2,centrBins);
fTrackParamHist->GetAxis(0)->SetTitle("1/pT (GeV/c)^{-1}");
fTrackParamHist->GetAxis(1)->SetTitle("#sigma(1/pT)");
fTrackParamHist->GetAxis(2)->SetTitle("centrality");
fTrackParamHist->Sumw2();
const Int_t ptNbins = 73;
Double_t bins[74] = {0.0, 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.2, 2.4, 2.6, 2.8, 3.0, 3.2, 3.4, 3.6, 3.8, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 18.0, 20.0, 22.0, 24.0, 26.0, 28.0, 30.0, 32.0, 34.0, 36.0, 40.0, 45.0, 50.0, 60.0, 70.0, 80.0, 90.0, 100.0 };
Int_t binsTrackParamHist2[3]={ptNbins,200,11};
Double_t minTrackParamHist2[3]={0,0,0};
Double_t maxTrackParamHist2[3]={100,0.2,100};
fTrackParamHist2 = new THnSparseF("fTrackParamHist2","pT:#sigma(1/pT)*pT:centrality",3,binsTrackParamHist2,minTrackParamHist2,maxTrackParamHist2);
fTrackParamHist2->SetBinEdges(0,bins);
fTrackParamHist2->GetAxis(0)->SetTitle("pT (GeV/c)");
fTrackParamHist2->GetAxis(1)->SetTitle("#sigma(1/pT)*pT");
fTrackParamHist2->GetAxis(2)->SetTitle("centrality");
fTrackParamHist2->Sumw2();
fAnalysisFolder = CreateFolder("folderdNdPt","Analysis dNdPt Folder");
}
void AliPtResolAnalysisPbPb::Process(AliESDEvent *const esdEvent, AliMCEvent *const mcEvent)
{
if(!esdEvent) {
AliDebug(AliLog::kError, "esdEvent not available");
return;
}
AlidNdPtEventCuts *evtCuts = GetEventCuts();
AlidNdPtAcceptanceCuts *accCuts = GetAcceptanceCuts();
AliESDtrackCuts *esdTrackCuts = GetTrackCuts();
if(!evtCuts || !accCuts || !esdTrackCuts) {
AliDebug(AliLog::kError, "cuts not available");
return;
}
Bool_t isEventTriggered = kTRUE;
AliPhysicsSelection *physicsSelection = NULL;
AliTriggerAnalysis* triggerAnalysis = NULL;
AliInputEventHandler* inputHandler = (AliInputEventHandler*) AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler();
if (!inputHandler)
{
Printf("ERROR: Could not receive input handler");
return;
}
if(evtCuts->IsTriggerRequired())
{
isEventTriggered = inputHandler->IsEventSelected() & AliVEvent::kMB;
physicsSelection = static_cast<AliPhysicsSelection*> (inputHandler->GetEventSelection());
if(!physicsSelection) return;
if (isEventTriggered && (GetTrigger() == AliTriggerAnalysis::kV0AND)) {
triggerAnalysis = physicsSelection->GetTriggerAnalysis();
if(!triggerAnalysis) return;
isEventTriggered = triggerAnalysis->IsOfflineTriggerFired(esdEvent, GetTrigger());
}
Float_t centralityF = -1.;
AliCentrality *esdCentrality = esdEvent->GetCentrality();
centralityF = esdCentrality->GetCentralityPercentile(fCentralityEstimator.Data());
const AliESDVertex* vtxESD = 0;
Bool_t isRecVertex = kFALSE;
if(evtCuts->IsRecVertexRequired())
{
Bool_t bRedoTPCVertex = evtCuts->IsRedoTPCVertex();
Bool_t bUseConstraints = evtCuts->IsUseBeamSpotConstraint();
vtxESD = AlidNdPtHelper::GetVertex(esdEvent,evtCuts,accCuts,esdTrackCuts,GetAnalysisMode(),kFALSE,bRedoTPCVertex,bUseConstraints);
isRecVertex = AlidNdPtHelper::TestRecVertex(vtxESD, esdEvent->GetPrimaryVertexSPD(), GetAnalysisMode(), kFALSE);
}
Bool_t isEventOK = evtCuts->AcceptEvent(esdEvent,mcEvent,vtxESD) && isRecVertex;
TObjArray *allChargedTracks=0;
if(isEventOK && isEventTriggered)
{
allChargedTracks = AlidNdPtHelper::GetAllChargedTracks(esdEvent,GetAnalysisMode());
if(!allChargedTracks) return;
Int_t entries = allChargedTracks->GetEntries();
for(Int_t i=0; i<entries;++i)
{
AliESDtrack *track = (AliESDtrack*)allChargedTracks->At(i);
if(!track) continue;
if(track->Charge()==0) continue;
if(GetParticleMode() == AlidNdPtHelper::kPlus && track->Charge() < 0)
continue;
if(GetParticleMode() == AlidNdPtHelper::kMinus && track->Charge() > 0)
continue;
if(esdTrackCuts->AcceptTrack(track))
{
if(accCuts->AcceptTrack(track))
{
Double_t v[3] = {track->OneOverPt(),TMath::Sqrt(track->GetSigma1Pt2()),centralityF};
fTrackParamHist->Fill(v);
Double_t v2[3] = {track->Pt(),track->Pt()*TMath::Sqrt(track->GetSigma1Pt2()),centralityF};
fTrackParamHist2->Fill(v2);
}
}
}
}
}
}
Long64_t AliPtResolAnalysisPbPb::Merge(TCollection* const list)
{
if (!list)
return 0;
if (list->IsEmpty())
return 1;
TIterator* iter = list->MakeIterator();
TObject* obj = 0;
Int_t count=0;
while((obj = iter->Next()) != 0) {
AliPtResolAnalysisPbPb* entry = dynamic_cast<AliPtResolAnalysisPbPb*>(obj);
if (entry == 0) continue;
fTrackParamHist->Add(entry->fTrackParamHist);
fTrackParamHist2->Add(entry->fTrackParamHist2);
}
return count;
}
void AliPtResolAnalysisPbPb::Analyse()
{
TH1::AddDirectory(kFALSE);
TObjArray *aFolderObj = new TObjArray;
if(!aFolderObj) return;
fAnalysisFolder = ExportToFolder(aFolderObj);
if(!fAnalysisFolder) {
if(aFolderObj) delete aFolderObj;
return;
}
if(aFolderObj) delete aFolderObj;
}
TFolder* AliPtResolAnalysisPbPb::ExportToFolder(TObjArray * const array)
{
if(!array) return NULL;
AliPtResolAnalysisPbPb * comp=this;
TFolder *folder = comp->GetAnalysisFolder();
TString name, title;
TFolder *newFolder = 0;
Int_t i = 0;
Int_t size = array->GetSize();
if(folder) {
name = folder->GetName();
title = folder->GetTitle();
delete folder;
newFolder = CreateFolder(name.Data(),title.Data());
newFolder->SetOwner();
while(i < size) {
newFolder->Add(array->At(i));
i++;
}
}
return newFolder;
}
TFolder* AliPtResolAnalysisPbPb::CreateFolder(TString name,TString title) {
TFolder *folder = 0;
folder = new TFolder(name.Data(),title.Data());
return folder;
}
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