#include <TH2F.h>
#include <TH1F.h>
#include <TParticle.h>
+#include <TParticlePDG.h>
#include <AliLog.h>
#include <AliESD.h>
-#include <AliGenEventHeader.h>
#include <AliStack.h>
#include <AliHeader.h>
+#include <AliGenEventHeader.h>
+#include <../STEER/AliGenPythiaEventHeader.h>
+#include <../STEER/AliGenCocktailEventHeader.h>
-#include "esdTrackCuts/AliESDtrackCuts.h"
+#include "AliESDtrackCuts.h"
#include "AliPWG0Helper.h"
-#include "AlidNdEtaCorrection.h"
+#include "dNdEta/AlidNdEtaCorrection.h"
ClassImp(AlidNdEtaSystematicsSelector)
fSigmaVertex(0),
fEsdTrackCuts(0),
fPIDParticles(0),
- fPIDTracks(0)
+ fPIDTracks(0),
+ fSignMode(0),
+ fMultiplicityMode(0)
{
//
// Constructor. Initialization of pointers
//
for (Int_t i=0; i<4; ++i)
- fdNdEtaCorrection[i] = 0;
+ fdNdEtaCorrectionSpecies[i] = 0;
+
+ for (Int_t i=0; i<3; ++i) {
+ fdNdEtaCorrectionVertexReco[i] = 0;
+ fdNdEtaCorrectionTriggerBias[i] = 0;
+ }
}
AlidNdEtaSystematicsSelector::~AlidNdEtaSystematicsSelector()
printf("Running AlidNdEtaSystematicsSelector with options %s\n", option.Data());
+ // Options: secondaries particle-composition sigma-vertex vertexreco triggerbias
+
if (option.Contains("secondaries"))
{
fSecondaries = new TH2F("fSecondaries", "fSecondaries;Case;N", 8, 0.5, 8.5, 2001, -0.5, 2000.5);
{
TString name;
name.Form("correction_%d", i);
- fdNdEtaCorrection[i] = new AlidNdEtaCorrection(name, name);
+ fdNdEtaCorrectionSpecies[i] = new AlidNdEtaCorrection(name, name);
}
}
if (option.Contains("sigma-vertex"))
{
- fSigmaVertex = new TH1F("fSigmaVertex", "fSigmaVertex;Nsigma2vertex;NacceptedTracks", 10, 0.25, 5.25);
+ fSigmaVertex = new TH1F("fSigmaVertex", "fSigmaVertex;Nsigma2vertex;NacceptedTracks", 50, 0.05, 5.05);
printf("WARNING: sigma-vertex analysis enabled. This will produce weird results in the AliESDtrackCuts histograms\n");
}
+ if (option.Contains("vertexreco")) {
+ fdNdEtaCorrectionVertexReco[0] = new AlidNdEtaCorrection("vertexRecoND", "vertexRecoND");
+ fdNdEtaCorrectionVertexReco[1] = new AlidNdEtaCorrection("vertexRecoSD", "vertexRecoSD");
+ fdNdEtaCorrectionVertexReco[2] = new AlidNdEtaCorrection("vertexRecoDD", "vertexRecoDD");
+ }
+
+ if (option.Contains("triggerbias")) {
+ fdNdEtaCorrectionTriggerBias[0] = new AlidNdEtaCorrection("triggerBiasND", "triggerBiasND");
+ fdNdEtaCorrectionTriggerBias[1] = new AlidNdEtaCorrection("triggerBiasSD", "triggerBiasSD");
+ fdNdEtaCorrectionTriggerBias[2] = new AlidNdEtaCorrection("triggerBiasDD", "triggerBiasDD");
+ }
+
fPIDParticles = new TH1F("pid_particles", "PID of generated primary particles", 10001, -5000.5, 5000.5);
fPIDTracks = new TH1F("pid_tracks", "MC PID of reconstructed tracks", 10001, -5000.5, 5000.5);
+
+ if (option.Contains("only-positive"))
+ {
+ AliInfo("Processing only positive particles.");
+ fSignMode = 1;
+ }
+ else if (option.Contains("only-negative"))
+ {
+ AliInfo("Processing only negative particles.");
+ fSignMode = -1;
+ }
+
+ if (option.Contains("low-multiplicity"))
+ {
+ AliInfo("Processing only events with low multiplicity.");
+ fMultiplicityMode = 1;
+ }
+ else if (option.Contains("high-multiplicity"))
+ {
+ AliInfo("Processing only events with high multiplicity.");
+ fMultiplicityMode = 2;
+ }
}
Bool_t AlidNdEtaSystematicsSelector::Process(Long64_t entry)
return kFALSE;
}
- TObjArray* list = fEsdTrackCuts->GetAcceptedTracks(fESD);
-
- if (fdNdEtaCorrection[0])
- FillCorrectionMaps(list);
-
- if (fSecondaries)
- FillSecondaries();
-
- if (fSigmaVertex)
- FillSigmaVertex();
-
- delete list;
- list = 0;
-
- return kTRUE;
-}
-
-void AlidNdEtaSystematicsSelector::FillCorrectionMaps(TObjArray* listOfTracks)
-{
- // fills the correction maps for different particle species
+ // --------------------------------------------------------------
+ // related to events:
+ //
+ // stuff for vertex reconstruction correction systematics
+ Bool_t vertexRecoStudy = kFALSE;
+ Bool_t triggerBiasStudy = kFALSE;
+ if (fdNdEtaCorrectionVertexReco[0]) vertexRecoStudy = kTRUE;
+ if (fdNdEtaCorrectionTriggerBias[0]) triggerBiasStudy = kTRUE;
- AliStack* stack = GetStack();
AliHeader* header = GetHeader();
-
- Bool_t vertexReconstructed = AliPWG0Helper::IsVertexReconstructed(fESD);
- Bool_t eventTriggered = AliPWG0Helper::IsEventTriggered(fESD);
-
- for (Int_t i=0; i<4; ++i)
- {
- fdNdEtaCorrection[i]->IncreaseEventCount();
- if (eventTriggered)
- fdNdEtaCorrection[i]->IncreaseTriggeredEventCount();
+ if (!header) {
+ AliDebug(AliLog::kError, "Header not available");
+ return kFALSE;
}
-
+
+ // getting process information
+ Int_t processtype = AliPWG0Helper::GetEventProcessType(header);
+
+ // can only read pythia headers, either directly or from cocktalil header
+ AliGenEventHeader* genHeader = (AliGenEventHeader*)(header->GenEventHeader());
+
+ if (!genHeader) {
+ AliDebug(AliLog::kError, "Gen header not available");
+ return kFALSE;
+ }
+
// get the MC vertex
- AliGenEventHeader* genHeader = header->GenEventHeader();
-
TArrayF vtxMC(3);
genHeader->PrimaryVertex(vtxMC);
+
+ TObjArray* listOfTracks = fEsdTrackCuts->GetAcceptedTracks(fESD);
+ Int_t nGoodTracks = listOfTracks->GetEntries();
+
+ Bool_t eventTriggered = AliPWG0Helper::IsEventTriggered(fESD);
+ Bool_t vertexReconstructed = AliPWG0Helper::IsVertexReconstructed(fESD);
+
+ // non diffractive
+ if (processtype == AliPWG0Helper::kND) {
+ // NB: passing the wrong process type here (1), since the process type is defined by the index in the array (here non-diffractive) // ???? CKB ???
+ if (triggerBiasStudy) fdNdEtaCorrectionTriggerBias[0]->FillEvent(vtxMC[2], nGoodTracks, eventTriggered, vertexReconstructed, 1);
+ if (vertexRecoStudy) fdNdEtaCorrectionVertexReco[0] ->FillEvent(vtxMC[2], nGoodTracks, eventTriggered, vertexReconstructed, 1);
+ }
+
+ // single diffractive
+ if (processtype == AliPWG0Helper::kSD) {
+ if (triggerBiasStudy) fdNdEtaCorrectionTriggerBias[1]->FillEvent(vtxMC[2], nGoodTracks, eventTriggered, vertexReconstructed, 1);
+ if (vertexRecoStudy) fdNdEtaCorrectionVertexReco[1] ->FillEvent(vtxMC[2], nGoodTracks, eventTriggered, vertexReconstructed, 1);
+ }
+
+ // double diffractive
+ if (processtype==AliPWG0Helper::kDD) {
+ if (triggerBiasStudy) fdNdEtaCorrectionTriggerBias[2]->FillEvent(vtxMC[2], nGoodTracks, eventTriggered, vertexReconstructed, 1);
+ if (vertexRecoStudy) fdNdEtaCorrectionVertexReco[2] ->FillEvent(vtxMC[2], nGoodTracks, eventTriggered, vertexReconstructed, 1);
+ }
+
+ for (Int_t i=0; i<4; ++i) {
+ if (fdNdEtaCorrectionSpecies[i])
+ fdNdEtaCorrectionSpecies[i]->FillEvent(vtxMC[2], nGoodTracks, eventTriggered, vertexReconstructed, 1);
+ }
+
+ // --------------------------------------------------------------
+ // MC particle loop
+ //
- // loop over mc particles
Int_t nPrim = stack->GetNprimary();
for (Int_t iMc = 0; iMc < nPrim; ++iMc)
{
TParticle* particle = stack->Particle(iMc);
-
+
if (!particle)
{
AliDebug(AliLog::kError, Form("UNEXPECTED: particle with label %d not found in stack (mc loop).", iMc));
if (AliPWG0Helper::IsPrimaryCharged(particle, nPrim) == kFALSE)
continue;
-
+
+ if (SignOK(particle->GetPDG()) == kFALSE)
+ continue;
+
Float_t eta = particle->Eta();
Float_t pt = particle->Pt();
-
+
Int_t id = -1;
switch (TMath::Abs(particle->GetPdgCode()))
- {
+ {
case 211: id = 0; break;
case 321: id = 1; break;
case 2212: id = 2; break;
default: id = 3; break;
}
- if (vertexReconstructed)
- {
- fdNdEtaCorrection[id]->FillParticle(vtxMC[2], eta, pt);
+ if (eventTriggered & vertexReconstructed) {
+ if (fdNdEtaCorrectionSpecies[id])
+ fdNdEtaCorrectionSpecies[id]->FillMCParticle(vtxMC[2], eta, pt, eventTriggered, vertexReconstructed, 1);
//if (pt < 0.1)
- fPIDParticles->Fill(particle->GetPdgCode());
+ if (fPIDParticles)
+ fPIDParticles->Fill(particle->GetPdgCode());
+ }
+
+ // non diffractive
+ if (processtype==AliPWG0Helper::kND) {
+ if (triggerBiasStudy) fdNdEtaCorrectionTriggerBias[0]->FillMCParticle(vtxMC[2], eta, pt, eventTriggered, vertexReconstructed, 1);
+ if (vertexRecoStudy) fdNdEtaCorrectionVertexReco[0] ->FillMCParticle(vtxMC[2], eta, pt, eventTriggered, vertexReconstructed, 1);
+ }
+ // single diffractive
+ if (processtype==AliPWG0Helper::kSD) {
+ if (triggerBiasStudy) fdNdEtaCorrectionTriggerBias[1]->FillMCParticle(vtxMC[2], eta, pt, eventTriggered, vertexReconstructed, 1);
+ if (vertexRecoStudy) fdNdEtaCorrectionVertexReco[1] ->FillMCParticle(vtxMC[2], eta, pt, eventTriggered, vertexReconstructed, 1);
+ }
+ // double diffractive
+ if (processtype==AliPWG0Helper::kDD) {
+ if (triggerBiasStudy) fdNdEtaCorrectionTriggerBias[2]->FillMCParticle(vtxMC[2], eta, pt, eventTriggered, vertexReconstructed, 1);
+ if (vertexRecoStudy) fdNdEtaCorrectionVertexReco[2] ->FillMCParticle(vtxMC[2], eta, pt, eventTriggered, vertexReconstructed, 1);
}
- fdNdEtaCorrection[id]->FillParticleAllEvents(eta, pt);
- if (eventTriggered)
- fdNdEtaCorrection[id]->FillParticleWhenEventTriggered(eta, pt);
}// end of mc particle
+
+ // --------------------------------------------------------------
+ // ESD track loop
+ //
+
+ if (fMultiplicityMode == 1 && listOfTracks->GetEntries() > 20 ||
+ fMultiplicityMode == 2 && listOfTracks->GetEntries() < 40)
+ {
+ delete listOfTracks;
+ listOfTracks = 0;
+ return kTRUE;
+ }
+
// loop over esd tracks
TIterator* iter = listOfTracks->MakeIterator();
TObject* obj = 0;
{
AliESDtrack* esdTrack = dynamic_cast<AliESDtrack*> (obj);
if (!esdTrack)
- continue;
+ continue;
// using the properties of the mc particle
Int_t label = TMath::Abs(esdTrack->GetLabel());
continue;
}
- TParticle* mother = particle;
- // find primary particle that created this particle
- while (label >= nPrim)
- {
- //printf("Particle %d (pdg %d) is not a primary. Let's check its mother %d\n", label, mother->GetPdgCode(), mother->GetMother(0));
-
- if (mother->GetMother(0) == -1)
- {
- AliDebug(AliLog::kError, Form("UNEXPECTED: Could not find mother of secondary particle %d.", label));
- mother = 0;
- break;
- }
-
- label = mother->GetMother(0);
+ Float_t eta = particle->Eta();
+ Float_t pt = particle->Pt();
+
+ // non diffractive
+ if (processtype==AliPWG0Helper::kND) {
+ if (triggerBiasStudy) fdNdEtaCorrectionTriggerBias[0]->FillTrackedParticle(vtxMC[2], eta, pt);
+ if (vertexRecoStudy) fdNdEtaCorrectionVertexReco[0] ->FillTrackedParticle(vtxMC[2], eta, pt);
+ }
+
+ // single diffractive
+ if (processtype==AliPWG0Helper::kSD) {
+ if (triggerBiasStudy) fdNdEtaCorrectionTriggerBias[1]->FillTrackedParticle(vtxMC[2], eta, pt);
+ if (vertexRecoStudy) fdNdEtaCorrectionVertexReco[1] ->FillTrackedParticle(vtxMC[2], eta, pt);
+ }
- mother = stack->Particle(label);
- if (!mother)
- {
- AliDebug(AliLog::kError, Form("UNEXPECTED: particle with label %d not found in stack (find mother loop).", label));
- break;
- }
+ // double diffractive
+ if (processtype==AliPWG0Helper::kDD) {
+ if (triggerBiasStudy) fdNdEtaCorrectionTriggerBias[2]->FillTrackedParticle(vtxMC[2], eta, pt);
+ if (vertexRecoStudy) fdNdEtaCorrectionVertexReco[2] ->FillTrackedParticle(vtxMC[2], eta, pt);
}
+ // find primary particle that created this particle
+ TParticle* mother = AliPWG0Helper::FindPrimaryMother(stack, label);
if (!mother)
continue;
+ if (SignOK(mother->GetPDG()) == kFALSE)
+ continue;
+
//printf("We continue with particle %d (pdg %d)\n", label, mother->GetPdgCode());
Int_t id = -1;
default: id = 3; break;
}
- if (vertexReconstructed)
- {
- fdNdEtaCorrection[id]->FillParticleWhenMeasuredTrack(vtxMC[2], particle->Eta(), particle->Pt());
- //if (particle->Pt() < 0.1)
- fPIDTracks->Fill(particle->GetPdgCode());
+ if (vertexReconstructed && eventTriggered) {
+ if (fdNdEtaCorrectionSpecies[id])
+ fdNdEtaCorrectionSpecies[id]->FillTrackedParticle(vtxMC[2], eta, pt);
+ //if (pt < 0.1)
+ if (fPIDTracks)
+ fPIDTracks->Fill(particle->GetPdgCode());
}
} // end of track loop
- Int_t nGoodTracks = listOfTracks->GetEntries();
-
- for (Int_t i=0; i<4; ++i)
- {
- fdNdEtaCorrection[i]->FillEvent(vtxMC[2], nGoodTracks);
- if (eventTriggered)
- {
- fdNdEtaCorrection[i]->FillEventWithTrigger(vtxMC[2], nGoodTracks);
- if (vertexReconstructed)
- fdNdEtaCorrection[i]->FillEventWithTriggerWithReconstructedVertex(vtxMC[2], nGoodTracks);
- }
- }
-
+
delete iter;
iter = 0;
+
+ if (fSecondaries)
+ FillSecondaries();
+
+ if (fSigmaVertex)
+ FillSigmaVertex();
+
+
+ delete listOfTracks;
+ listOfTracks = 0;
+
+ return kTRUE;
}
void AlidNdEtaSystematicsSelector::FillSecondaries()
{
// fills the secondary histograms
-
+
AliStack* stack = GetStack();
Int_t particlesPrimaries = 0;
Float_t sigma2Vertex = fEsdTrackCuts->GetSigmaToVertex(esdTrack);
- for (Double_t nSigma = 0.5; nSigma < 5.1; nSigma += 0.5)
+ for (Double_t nSigma = 0.1; nSigma < 5.05; nSigma += 0.1)
{
if (sigma2Vertex < nSigma)
fSigmaVertex->Fill(nSigma);
fOutput->Add(fSecondaries);
for (Int_t i=0; i<4; ++i)
- if (fdNdEtaCorrection[i])
- fOutput->Add(fdNdEtaCorrection[i]);
+ if (fdNdEtaCorrectionSpecies[i])
+ fOutput->Add(fdNdEtaCorrectionSpecies[i]);
if (fSigmaVertex)
fOutput->Add(fSigmaVertex);
+
+ for (Int_t i=0; i<3; ++i) {
+ if (fdNdEtaCorrectionVertexReco[i])
+ fOutput->Add(fdNdEtaCorrectionVertexReco[i]);
+
+ if (fdNdEtaCorrectionTriggerBias[i])
+ fOutput->Add(fdNdEtaCorrectionTriggerBias[i]);
+ }
+
}
void AlidNdEtaSystematicsSelector::Terminate()
fSecondaries = dynamic_cast<TH2F*> (fOutput->FindObject("fSecondaries"));
for (Int_t i=0; i<4; ++i)
- fdNdEtaCorrection[i] = dynamic_cast<AlidNdEtaCorrection*> (fOutput->FindObject(Form("correction_%d", i)));
+ fdNdEtaCorrection
Species[i] = dynamic_cast<AlidNdEtaCorrection*> (fOutput->FindObject(Form("correction_%d", i)));
fSigmaVertex = dynamic_cast<TH1F*> (fOutput->FindObject("fSigmaVertex"));
- TDatabasePDG* pdgDB = new TDatabasePDG;
+ fdNdEtaCorrectionVertexReco[0] = dynamic_cast<AlidNdEtaCorrection*> (fOutput->FindObject("vertexRecoND"));
+ fdNdEtaCorrectionVertexReco[1] = dynamic_cast<AlidNdEtaCorrection*> (fOutput->FindObject("vertexRecoSD"));
+ fdNdEtaCorrectionVertexReco[2] = dynamic_cast<AlidNdEtaCorrection*> (fOutput->FindObject("vertexRecoDD"));
- for (Int_t i=0; i <= fPIDParticles->GetNbinsX()+1; ++i)
- if (fPIDParticles->GetBinContent(i) > 0)
- printf("PDG = %d (%s): generated: %d, reconstructed: %d, ratio: %f\n", (Int_t) fPIDParticles->GetBinCenter(i), pdgDB->GetParticle((Int_t) fPIDParticles->GetBinCenter(i))->GetName(), (Int_t) fPIDParticles->GetBinContent(i), (Int_t) fPIDTracks->GetBinContent(i), ((fPIDTracks->GetBinContent(i) > 0) ? fPIDParticles->GetBinContent(i) / fPIDTracks->GetBinContent(i) : -1));
+ fdNdEtaCorrectionTriggerBias[0] = dynamic_cast<AlidNdEtaCorrection*> (fOutput->FindObject("triggerBiasND"));
+ fdNdEtaCorrectionTriggerBias[1] = dynamic_cast<AlidNdEtaCorrection*> (fOutput->FindObject("triggerBiasSD"));
+ fdNdEtaCorrectionTriggerBias[2] = dynamic_cast<AlidNdEtaCorrection*> (fOutput->FindObject("triggerBiasDD"));
+
+ if (fPIDParticles)
+ {
+ TDatabasePDG* pdgDB = new TDatabasePDG;
+
+ for (Int_t i=0; i <= fPIDParticles->GetNbinsX()+1; ++i)
+ if (fPIDParticles->GetBinContent(i) > 0)
+ printf("PDG = %d (%s): generated: %d, reconstructed: %d, ratio: %f\n",
+ (Int_t) fPIDParticles->GetBinCenter(i),
+ pdgDB->GetParticle((Int_t) fPIDParticles->GetBinCenter(i))->GetName(),
+ (Int_t) fPIDParticles->GetBinContent(i),
+ (Int_t) fPIDTracks->GetBinContent(i),
+ ((fPIDTracks->GetBinContent(i) > 0) ? fPIDParticles->GetBinContent(i) / fPIDTracks->GetBinContent(i) : -1));
+
+ delete pdgDB;
+ pdgDB = 0;
+ }
- delete pdgDB;
- pdgDB = 0;
+ for (Int_t i=0; i<3; ++i) {
+ if (fdNdEtaCorrectionVertexReco[i])
+ fdNdEtaCorrectionVertexReco[i]->Finish();
+
+ if (fdNdEtaCorrectionTriggerBias[i])
+ fdNdEtaCorrectionTriggerBias[i]->Finish();
+ }
TFile* fout = TFile::Open("systematics.root", "RECREATE");
if (fSigmaVertex)
fSigmaVertex->Write();
-
+
for (Int_t i=0; i<4; ++i)
- if (fdNdEtaCorrection[i])
- fdNdEtaCorrection[i]->SaveHistograms();
+ if (fdNdEtaCorrectionSpecies[i])
+ fdNdEtaCorrectionSpecies[i]->SaveHistograms();
+
+ for (Int_t i=0; i<3; ++i) {
+ if (fdNdEtaCorrectionVertexReco[i])
+ fdNdEtaCorrectionVertexReco[i]->SaveHistograms();
+
+ if (fdNdEtaCorrectionTriggerBias[i])
+ fdNdEtaCorrectionTriggerBias[i]->SaveHistograms();
+ }
fout->Write();
fout->Close();
fSigmaVertex->Draw();
}
}
+
+Bool_t AlidNdEtaSystematicsSelector::SignOK(TParticlePDG* particle)
+{
+ // returns if a particle with this sign should be counted
+ // this is determined by the value of fSignMode, which should have the same sign
+ // as the charge
+ // if fSignMode is 0 all particles are counted
+
+ if (fSignMode == 0)
+ return kTRUE;
+
+ if (!particle)
+ {
+ printf("WARNING: not counting a particle that does not have a pdg particle\n");
+ return kFALSE;
+ }
+
+ Double_t charge = particle->Charge();
+
+ if (fSignMode > 0)
+ if (charge < 0)
+ return kFALSE;
+
+ if (fSignMode < 0)
+ if (charge > 0)
+ return kFALSE;
+
+ return kTRUE;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff