#include <TParticle.h>
#include <TParticlePDG.h>
#include <TH1.h>
+#include <TH2.h>
#include <TH3.h>
+#include <TList.h>
+#include <TTree.h>
+#include <TBranch.h>
+#include <TLeaf.h>
+
+#include <AliHeader.h>
+#include <AliStack.h>
#include <AliLog.h>
#include <AliESD.h>
+#include <AliESDEvent.h>
#include <AliESDVertex.h>
+#include <AliVertexerTracks.h>
+#include <AliMultiplicity.h>
+
+#include <AliGenEventHeader.h>
+#include <AliGenPythiaEventHeader.h>
+#include <AliGenCocktailEventHeader.h>
+#include <AliGenDPMjetEventHeader.h>
+#include <AliESDVZERO.h>
+
+#include <AliOfflineTrigger.h>
//____________________________________________________________________
ClassImp(AliPWG0Helper)
+Int_t AliPWG0Helper::fgLastProcessType = -1;
+AliOfflineTrigger* AliPWG0Helper::fgOfflineTrigger = 0;
+
+//____________________________________________________________________
+AliOfflineTrigger* AliPWG0Helper::GetOfflineTrigger()
+{
+ // returns the current AliOfflineTrigger object
+ // creates one if needed
+
+ if (!fgOfflineTrigger)
+ fgOfflineTrigger = new AliOfflineTrigger;
+
+ return fgOfflineTrigger;
+}
+
//____________________________________________________________________
-Bool_t AliPWG0Helper::IsEventTriggered(AliESD* aEsd, Trigger trigger)
+Bool_t AliPWG0Helper::IsEventTriggered(const AliESDEvent* aEsd, Trigger trigger)
+{
+ // checks if an event has been triggered
+
+ if (trigger & kOfflineFlag)
+ return GetOfflineTrigger()->IsEventTriggered(aEsd, trigger);
+
+ return IsEventTriggered(aEsd->GetTriggerMask(), trigger);
+}
+
+//____________________________________________________________________
+Bool_t AliPWG0Helper::IsEventTriggered(ULong64_t triggerMask, Trigger trigger)
{
// check if the event was triggered
//
// this function needs the branch fTriggerMask
- //
- // MB should be
- // ITS_SPD_GFO_L0 : 32
- // VZERO_OR_LEFT : 1
- // VZERO_OR_RIGHT : 2
-
- ULong64_t triggerMask = aEsd->GetTriggerMask();
+
+ // definitions from p-p.cfg
+ ULong64_t spdFO = (1 << 14);
+ ULong64_t v0left = (1 << 10);
+ ULong64_t v0right = (1 << 11);
switch (trigger)
{
+ case kAcceptAll:
+ {
+ return kTRUE;
+ break;
+ }
case kMB1:
{
- if (triggerMask&32 || ((triggerMask&1) || (triggerMask&2)))
+ if (triggerMask & spdFO || ((triggerMask & v0left) || (triggerMask & v0right)))
return kTRUE;
break;
}
case kMB2:
{
- if (triggerMask&32 && ((triggerMask&1) || (triggerMask&2)))
+ if (triggerMask & spdFO && ((triggerMask & v0left) || (triggerMask & v0right)))
return kTRUE;
break;
}
+ case kMB3:
+ {
+ if (triggerMask & spdFO && (triggerMask & v0left) && (triggerMask & v0right))
+ return kTRUE;
+ break;
+ }
+ case kSPDGFO:
+ {
+ if (triggerMask & spdFO)
+ return kTRUE;
+ break;
+ }
+ default:
+ Printf("IsEventTriggered: ERROR: Trigger type %d not implemented in this method", (Int_t) trigger);
+ break;
}
return kFALSE;
}
//____________________________________________________________________
-Bool_t AliPWG0Helper::IsVertexReconstructed(AliESD* aEsd)
+Bool_t AliPWG0Helper::TestVertex(const AliESDVertex* vertex, AnalysisMode analysisMode, Bool_t debug)
{
- // checks if the vertex is reasonable
- //
- // this function needs the branches fSPDVertex*
+ // Checks if a vertex meets the needed quality criteria
+ Float_t requiredZResolution = -1;
+ if (analysisMode & kSPD || analysisMode & kTPCITS)
+ {
+ requiredZResolution = 0.1;
+ }
+ else if (analysisMode & kTPC)
+ requiredZResolution = 10.;
- const AliESDVertex* vtxESD = aEsd->GetVertex();
+ // check resolution
+ Double_t zRes = vertex->GetZRes();
- // the vertex should be reconstructed
- if (strcmp(vtxESD->GetName(), "default")==0)
+ if (zRes > requiredZResolution) {
+ if (debug)
+ Printf("AliPWG0Helper::TestVertex: Resolution too poor %f (required: %f", zRes, requiredZResolution);
return kFALSE;
+ }
- Double_t vtx_res[3];
- vtx_res[0] = vtxESD->GetXRes();
- vtx_res[1] = vtxESD->GetYRes();
- vtx_res[2] = vtxESD->GetZRes();
+ return kTRUE;
+}
- if (vtx_res[2]==0 || vtx_res[2]>0.1)
- return kFALSE;
+//____________________________________________________________________
+const AliESDVertex* AliPWG0Helper::GetVertex(AliESDEvent* aEsd, AnalysisMode analysisMode, Bool_t debug, Bool_t bRedoTPC)
+{
+ // Get the vertex from the ESD and returns it if the vertex is valid
+ //
+ // Second argument decides which vertex is used (this selects
+ // also the quality criteria that are applied)
- // check Ncontributors, if <0 it means error *gna*
+ const AliESDVertex* vertex = 0;
+ if (analysisMode & kSPD || analysisMode & kTPCITS)
+ {
+ vertex = aEsd->GetPrimaryVertexSPD();
+ if (debug)
+ Printf("AliPWG0Helper::GetVertex: Returning SPD vertex");
+ }
+ else if (analysisMode & kTPC)
+ {
+ if(bRedoTPC){
+ if (debug)
+ Printf("AliPWG0Helper::GetVertex: Redoing vertex");
+ Double_t kBz = aEsd->GetMagneticField();
+ AliVertexerTracks vertexer(kBz);
+ vertexer.SetTPCMode();
+ AliESDVertex *vTPC = vertexer.FindPrimaryVertex(aEsd);
+ aEsd->SetPrimaryVertexTPC(vTPC);
+ for (Int_t i=0; i<aEsd->GetNumberOfTracks(); i++) {
+ AliESDtrack *t = aEsd->GetTrack(i);
+ t->RelateToVertexTPC(vTPC, kBz, kVeryBig);
+ }
+ delete vTPC;
+ }
- return kTRUE;
+ vertex = aEsd->GetPrimaryVertexTPC();
+ if (debug)
+ Printf("AliPWG0Helper::GetVertex: Returning vertex from tracks");
+ }
+ else
+ Printf("AliPWG0Helper::GetVertex: ERROR: Invalid second argument %d", analysisMode);
+
+ if (!vertex) {
+ if (debug)
+ Printf("AliPWG0Helper::GetVertex: No vertex found in ESD");
+ return 0;
+ }
+
+ // check Ncontributors
+ if (vertex->GetNContributors() <= 0) {
+ if (debug){
+ Printf("AliPWG0Helper::GetVertex: NContributors() <= 0: %d",vertex->GetNContributors());
+ Printf("AliPWG0Helper::GetVertex: NIndices(): %d",vertex->GetNIndices());
+ vertex->Print();
+ }
+ return 0;
+ }
+
+ // check resolution
+ Double_t zRes = vertex->GetZRes();
+ if (zRes == 0) {
+ Printf("AliPWG0Helper::GetVertex: UNEXPECTED: resolution is 0.");
+ return 0;
+ }
+
+ if (debug)
+ {
+ Printf("AliPWG0Helper::GetVertex: Returning valid vertex: %s", vertex->GetTitle());
+ vertex->Print();
+ }
+
+ return vertex;
}
//____________________________________________________________________
//
// This function or a equivalent should be available in some common place of AliRoot
//
+ // WARNING: Call this function only for particles that are among the particles from the event generator!
+ // --> stack->Particle(id) with id < stack->GetNprimary()
// if the particle has a daughter primary, we do not want to count it
if (aParticle->GetFirstDaughter() != -1 && aParticle->GetFirstDaughter() < aTotalPrimaries)
}
Int_t pdgCode = TMath::Abs(aParticle->GetPdgCode());
+
// skip quarks and gluon
if (pdgCode <= 10 || pdgCode == 21)
return kFALSE;
}
+ Int_t status = aParticle->GetStatusCode();
+ // skip non final state particles..
+ if(status!=1){
+ if (adebug)
+ printf("Dropping particle because it is not a final state particle.\n");
+ return kFALSE;
+ }
+
if (strcmp(aParticle->GetName(),"XXX") == 0)
{
- if (adebug)
- printf("WARNING: There is a particle named XXX.\n");
+ Printf("WARNING: There is a particle named XXX (pdg code %d).", pdgCode);
return kFALSE;
}
if (strcmp(pdgPart->ParticleClass(),"Unknown") == 0)
{
- if (adebug)
- printf("WARNING: There is a particle with an unknown particle class (pdg code %d).\n", pdgCode);
+ Printf("WARNING: There is a particle with an unknown particle class (pdg code %d).", pdgCode);
return kFALSE;
}
return 0;
}
+
+
+AliPWG0Helper::MCProcessType AliPWG0Helper::GetPythiaEventProcessType(AliGenEventHeader* aHeader, Bool_t adebug) {
+
+ AliGenPythiaEventHeader* pythiaGenHeader = dynamic_cast<AliGenPythiaEventHeader*>(aHeader);
+
+ if (!pythiaGenHeader) {
+ printf("AliPWG0Helper::GetProcessType : Unknown gen Header type). \n");
+ return kInvalidProcess;
+ }
+
+
+ Int_t pythiaType = pythiaGenHeader->ProcessType();
+ fgLastProcessType = pythiaType;
+ MCProcessType globalType = kInvalidProcess;
+
+
+ if (adebug) {
+ printf("AliPWG0Helper::GetProcessType : Pythia process type found: %d \n",pythiaType);
+ }
+
+
+ if(pythiaType==92||pythiaType==93){
+ globalType = kSD;
+ }
+ else if(pythiaType==94){
+ globalType = kDD;
+ }
+ //else if(pythiaType != 91){ // also exclude elastic to be sure... CKB??
+ else {
+ globalType = kND;
+ }
+ return globalType;
+}
+
+
+AliPWG0Helper::MCProcessType AliPWG0Helper::GetDPMjetEventProcessType(AliGenEventHeader* aHeader, Bool_t adebug) {
+ //
+ // get the process type of the event.
+ //
+
+ // can only read pythia headers, either directly or from cocktalil header
+ AliGenDPMjetEventHeader* dpmJetGenHeader = dynamic_cast<AliGenDPMjetEventHeader*>(aHeader);
+
+ if (!dpmJetGenHeader) {
+ printf("AliPWG0Helper::GetDPMjetProcessType : Unknown header type (not DPMjet or). \n");
+ return kInvalidProcess;
+ }
+
+ Int_t dpmJetType = dpmJetGenHeader->ProcessType();
+ fgLastProcessType = dpmJetType;
+ MCProcessType globalType = kInvalidProcess;
+
+
+ if (adebug) {
+ printf("AliPWG0Helper::GetDPMJetProcessType : DPMJet process type found: %d \n",dpmJetType);
+ }
+
+
+ if(dpmJetType == 1){ // this is explicitly inelastic
+ globalType = kND;
+ }
+ else if(dpmJetType==5||dpmJetType==6){
+ globalType = kSD;
+ }
+ else if(dpmJetType==7||dpmJetType==4){// DD and double pomeron
+ globalType = kDD;
+ }
+ return globalType;
+}
+
+
+AliPWG0Helper::MCProcessType AliPWG0Helper::GetEventProcessType(AliHeader* aHeader, Bool_t adebug) {
+ //
+ // get the process type of the event.
+ //
+
+
+ // Check for simple headers first
+
+ AliGenPythiaEventHeader* pythiaGenHeader = dynamic_cast<AliGenPythiaEventHeader*>(aHeader->GenEventHeader());
+ if (pythiaGenHeader) {
+ return GetPythiaEventProcessType(pythiaGenHeader,adebug);
+ }
+
+ AliGenDPMjetEventHeader* dpmJetGenHeader = dynamic_cast<AliGenDPMjetEventHeader*>(aHeader->GenEventHeader());
+ if (dpmJetGenHeader) {
+ return GetDPMjetEventProcessType(dpmJetGenHeader,adebug);
+ }
+
+
+ // check for cocktail
+
+ AliGenCocktailEventHeader* genCocktailHeader = dynamic_cast<AliGenCocktailEventHeader*>(aHeader->GenEventHeader());
+ if (!genCocktailHeader) {
+ printf("AliPWG0Helper::GetProcessType : Unknown header type (not Pythia or Cocktail). \n");
+ return kInvalidProcess;
+ }
+
+ TList* headerList = genCocktailHeader->GetHeaders();
+ if (!headerList) {
+ return kInvalidProcess;
+ }
+
+ for (Int_t i=0; i<headerList->GetEntries(); i++) {
+
+ pythiaGenHeader = dynamic_cast<AliGenPythiaEventHeader*>(headerList->At(i));
+ if (pythiaGenHeader) {
+ return GetPythiaEventProcessType(pythiaGenHeader,adebug);
+ }
+
+ dpmJetGenHeader = dynamic_cast<AliGenDPMjetEventHeader*>(headerList->At(i));
+ if (dpmJetGenHeader) {
+ return GetDPMjetEventProcessType(dpmJetGenHeader,adebug);
+ }
+ }
+ return kInvalidProcess;
+}
+
+
+
+//____________________________________________________________________
+TParticle* AliPWG0Helper::FindPrimaryMother(AliStack* stack, Int_t label)
+{
+ //
+ // Finds the first mother among the primary particles of the particle identified by <label>,
+ // i.e. the primary that "caused" this particle
+ //
+
+ Int_t motherLabel = FindPrimaryMotherLabel(stack, label);
+ if (motherLabel < 0)
+ return 0;
+
+ return stack->Particle(motherLabel);
+}
+
+//____________________________________________________________________
+Int_t AliPWG0Helper::FindPrimaryMotherLabel(AliStack* stack, Int_t label)
+{
+ //
+ // Finds the first mother among the primary particles of the particle identified by <label>,
+ // i.e. the primary that "caused" this particle
+ //
+ // returns its label
+ //
+
+ Int_t nPrim = stack->GetNprimary();
+
+ 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));
+
+ TParticle* particle = stack->Particle(label);
+ if (!particle)
+ {
+ AliDebugGeneral("FindPrimaryMother", AliLog::kError, Form("UNEXPECTED: particle with label %d not found in stack.", label));
+ return -1;
+ }
+
+ // find mother
+ if (particle->GetMother(0) < 0)
+ {
+ AliDebugGeneral("FindPrimaryMother", AliLog::kError, Form("UNEXPECTED: Could not find mother of secondary particle %d.", label));
+ return -1;
+ }
+
+ label = particle->GetMother(0);
+ }
+
+ return label;
+}
+
+//____________________________________________________________________
+void AliPWG0Helper::NormalizeToBinWidth(TH1* hist)
+{
+ //
+ // normalizes a 1-d histogram to its bin width
+ //
+
+ for (Int_t i=1; i<=hist->GetNbinsX(); ++i)
+ {
+ hist->SetBinContent(i, hist->GetBinContent(i) / hist->GetBinWidth(i));
+ hist->SetBinError(i, hist->GetBinError(i) / hist->GetBinWidth(i));
+ }
+}
+
+//____________________________________________________________________
+void AliPWG0Helper::NormalizeToBinWidth(TH2* hist)
+{
+ //
+ // normalizes a 2-d histogram to its bin width (x width * y width)
+ //
+
+ for (Int_t i=1; i<=hist->GetNbinsX(); ++i)
+ for (Int_t j=1; j<=hist->GetNbinsY(); ++j)
+ {
+ Double_t factor = hist->GetXaxis()->GetBinWidth(i) * hist->GetYaxis()->GetBinWidth(j);
+ hist->SetBinContent(i, j, hist->GetBinContent(i, j) / factor);
+ hist->SetBinError(i, j, hist->GetBinError(i, j) / factor);
+ }
+}
+
+//____________________________________________________________________
+const char* AliPWG0Helper::GetTriggerName(Trigger trigger)
+{
+ // returns the name of the requested trigger
+ // the returned string will only be valid until the next call to this function [not thread-safe]
+
+ static TString str;
+
+ UInt_t triggerNoFlags = (UInt_t) trigger % (UInt_t) kStartOfFlags;
+
+ switch (triggerNoFlags)
+ {
+ case kAcceptAll : str = "ACCEPT ALL (bypass!)"; break;
+ case kMB1 : str = "MB1"; break;
+ case kMB2 : str = "MB2"; break;
+ case kMB3 : str = "MB3"; break;
+ case kSPDGFO : str = "SPD GFO"; break;
+ case kV0A : str = "V0 A"; break;
+ case kV0C : str = "V0 C"; break;
+ case kZDC : str = "ZDC"; break;
+ case kZDCA : str = "ZDC A"; break;
+ case kZDCC : str = "ZDC C"; break;
+ case kFMDA : str = "FMD A"; break;
+ case kFMDC : str = "FMD C"; break;
+ case kFPANY : str = "SPD GFO | V0 | ZDC | FMD"; break;
+ default: str = ""; break;
+ }
+
+ if (trigger & kOfflineFlag)
+ str += " OFFLINE";
+
+ return str;
+}
+
+//____________________________________________________________________
+void AliPWG0Helper::PrintConf(AnalysisMode analysisMode, Trigger trigger)
+{
+ //
+ // Prints the given configuration
+ //
+
+ TString str(">>>> Running with >");
+
+ if (analysisMode & kSPD)
+ str += "SPD-only";
+
+ if (analysisMode & kTPC)
+ str += "TPC-only";
+
+ if (analysisMode & kTPCITS)
+ str += "Global tracking";
+
+ if (analysisMode & kFieldOn)
+ {
+ str += " (with field)";
+ }
+ else
+ str += " (WITHOUT field)";
+
+ str += "< and trigger >";
+ str += GetTriggerName(trigger);
+ str += "< <<<<";
+
+ Printf("%s", str.Data());
+}
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff