#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 <AliLog.h>
#include <AliESD.h>
+#include <AliESDEvent.h>
#include <AliESDVertex.h>
+#include <AliGenEventHeader.h>
+#include <AliGenPythiaEventHeader.h>
+#include <AliGenCocktailEventHeader.h>
+#include <AliGenDPMjetEventHeader.h>
+
//____________________________________________________________________
ClassImp(AliPWG0Helper)
//____________________________________________________________________
-Bool_t AliPWG0Helper::IsEventTriggered(AliESD* aEsd)
+Bool_t AliPWG0Helper::IsEventTriggered(const AliESD* aEsd, Trigger trigger)
+{
+ // see function with ULong64_t argument
+
+ ULong64_t triggerMask = aEsd->GetTriggerMask();
+ return IsEventTriggered(triggerMask, trigger);
+}
+
+//____________________________________________________________________
+Bool_t AliPWG0Helper::IsEventTriggered(ULong64_t triggerMask, Trigger trigger)
{
// check if the event was triggered
//
- // MB should be
- // ITS_SPD_GFO_L0 : 32
- // VZERO_OR_LEFT : 1
- // VZERO_OR_RIGHT : 2
+ // this function needs the branch fTriggerMask
+
- ULong64_t triggerMask = aEsd->GetTriggerMask();
+ // definitions from p-p.cfg
+ ULong64_t spdFO = (1 << 14);
+ ULong64_t v0left = (1 << 11);
+ ULong64_t v0right = (1 << 12);
- if (triggerMask&32 && ((triggerMask&1) || (triggerMask&2)))
- return kTRUE;
+ switch (trigger)
+ {
+ case kMB1:
+ {
+ if (triggerMask & spdFO || ((triggerMask & v0left) || (triggerMask & v0right)))
+ return kTRUE;
+ break;
+ }
+ case kMB2:
+ {
+ if (triggerMask & spdFO && ((triggerMask & v0left) || (triggerMask & v0right)))
+ return kTRUE;
+ break;
+ }
+ }
return kFALSE;
}
//____________________________________________________________________
-Bool_t AliPWG0Helper::IsVertexReconstructed(AliESD* aEsd)
+Bool_t AliPWG0Helper::IsVertexReconstructed(const AliESD* aEsd)
{
- // checks if the vertex is reasonable
+ // see function with AliESDVertex argument
const AliESDVertex* vtxESD = aEsd->GetVertex();
+ return IsVertexReconstructed(vtxESD);
+}
+
+//____________________________________________________________________
+Bool_t AliPWG0Helper::IsVertexReconstructed(const AliESDVertex* vtxESD)
+{
+ // checks if the vertex is reasonable
+ //
+ // this function needs the branches fSPDVertex*
+
+ if (!vtxESD)
+ return kFALSE;
// the vertex should be reconstructed
if (strcmp(vtxESD->GetName(), "default")==0)
return kFALSE;
+ // check Ncontributors
+ if (vtxESD->GetNContributors() <= 0)
+ return kFALSE;
+
Double_t vtx_res[3];
vtx_res[0] = vtxESD->GetXRes();
vtx_res[1] = vtxESD->GetYRes();
}
//____________________________________________________________________
-Bool_t AliPWG0Helper::IsPrimaryCharged(TParticle* aParticle, Int_t aTotalPrimaries)
+const AliESDVertex* AliPWG0Helper::GetVertex(const AliESDEvent* aEsd, AnalysisMode analysisMode, Bool_t debug)
{
+ // 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)
+
+ const AliESDVertex* vertex = 0;
+ Float_t requiredZResolution = -1;
+ if (analysisMode == kSPD || analysisMode == kTPCITS)
+ {
+ vertex = aEsd->GetPrimaryVertexSPD();
+ requiredZResolution = 0.1;
+ if (debug)
+ Printf("AliPWG0Helper::GetVertex: Returning SPD vertex");
+ }
+ else if (analysisMode == kTPC)
+ {
+ vertex = aEsd->GetPrimaryVertexTPC();
+ requiredZResolution = 0.6;
+ 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");
+ return 0;
+ }
+
+ // check resolution
+ Double_t zRes = vertex->GetZRes();
+
+ if (zRes == 0 || zRes > requiredZResolution) {
+ if (debug)
+ Printf("AliPWG0Helper::GetVertex: Resolution too poor %f (required: %f", zRes, requiredZResolution);
+ return 0;
+ }
+
+ if (debug)
+ Printf("AliPWG0Helper::GetVertex: Returning valid vertex");
+
+ return vertex;
+}
+
+//____________________________________________________________________
+Bool_t AliPWG0Helper::IsPrimaryCharged(TParticle* aParticle, Int_t aTotalPrimaries, Bool_t adebug)
+{
+ //
+ // this function checks if a particle from the event generator (i.e. among the nPrim particles in the stack)
+ // shall be counted as a primary particle
//
- // Returns if the given particle is a primary particle
// 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)
{
- //AliDebug(AliLog::kDebug+1, "Dropping particle because it has a daughter among the primaries.");
+ if (adebug)
+ printf("Dropping particle because it has a daughter among the primaries.\n");
return kFALSE;
}
// skip quarks and gluon
if (pdgCode <= 10 || pdgCode == 21)
{
- //AliDebug(AliLog::kDebug+1, "Dropping particle because it is a quark or gluon.");
+ if (adebug)
+ printf("Dropping particle because it is a quark or gluon.\n");
return kFALSE;
}
if (strcmp(aParticle->GetName(),"XXX") == 0)
{
- //AliDebug(AliLog::kDebug, Form("WARNING: There is a particle named XXX."));
+ if (adebug)
+ printf("WARNING: There is a particle named XXX.\n");
return kFALSE;
}
if (strcmp(pdgPart->ParticleClass(),"Unknown") == 0)
{
- //AliDebug(AliLog::kDebug, Form("WARNING: There is a particle with an unknown particle class (pdg code %d).", pdgCode));
+ if (adebug)
+ printf("WARNING: There is a particle with an unknown particle class (pdg code %d).\n", pdgCode);
return kFALSE;
}
if (pdgPart->Charge() == 0)
{
- //AliDebug(AliLog::kDebug+1, "Dropping particle because it is not charged.");
+ if (adebug)
+ printf("Dropping particle because it is not charged.\n");
return kFALSE;
}
return kTRUE;
}
+
+//____________________________________________________________________
+void AliPWG0Helper::CreateProjections(TH3* hist, Bool_t save)
+{
+ // create projections of 3d hists to all 2d combinations
+ // the histograms are not returned, just use them from memory or use this to create them in a file
+
+ TH1* proj = hist->Project3D("yx");
+ proj->SetXTitle(hist->GetXaxis()->GetTitle());
+ proj->SetYTitle(hist->GetYaxis()->GetTitle());
+ if (save)
+ proj->Write();
+
+ proj = hist->Project3D("zx");
+ proj->SetXTitle(hist->GetXaxis()->GetTitle());
+ proj->SetYTitle(hist->GetZaxis()->GetTitle());
+ if (save)
+ proj->Write();
+
+ proj = hist->Project3D("zy");
+ proj->SetXTitle(hist->GetYaxis()->GetTitle());
+ proj->SetYTitle(hist->GetZaxis()->GetTitle());
+ if (save)
+ proj->Write();
+}
+
+//____________________________________________________________________
+void AliPWG0Helper::CreateDividedProjections(TH3* hist, TH3* hist2, const char* axis, Bool_t putErrors, Bool_t save)
+{
+ // create projections of the 3d hists divides them
+ // axis decides to which plane, if axis is 0 to all planes
+ // the histograms are not returned, just use them from memory or use this to create them in a file
+
+ if (axis == 0)
+ {
+ CreateDividedProjections(hist, hist2, "yx", putErrors, save);
+ CreateDividedProjections(hist, hist2, "zx", putErrors, save);
+ CreateDividedProjections(hist, hist2, "zy", putErrors, save);
+
+ return;
+ }
+
+ TH1* proj = hist->Project3D(axis);
+
+ if (strlen(axis) == 2)
+ {
+ proj->SetYTitle(GetAxisTitle(hist, axis[0]));
+ proj->SetXTitle(GetAxisTitle(hist, axis[1]));
+ }
+ else if (strlen(axis) == 1)
+ proj->SetXTitle(GetAxisTitle(hist, axis[0]));
+
+ TH1* proj2 = hist2->Project3D(axis);
+ if (strlen(axis) == 2)
+ {
+ proj2->SetYTitle(GetAxisTitle(hist2, axis[0]));
+ proj2->SetXTitle(GetAxisTitle(hist2, axis[1]));
+ }
+ else if (strlen(axis) == 1)
+ proj2->SetXTitle(GetAxisTitle(hist2, axis[0]));
+
+ TH1* division = dynamic_cast<TH1*> (proj->Clone(Form("%s_div_%s", proj->GetName(), proj2->GetName())));
+ //printf("doing axis: %s, x axis has %d %d bins, min %f %f max %f %f\n", axis, division->GetNbinsX(), proj2->GetNbinsX(), division->GetXaxis()->GetBinLowEdge(1), proj2->GetXaxis()->GetBinLowEdge(1), division->GetXaxis()->GetBinUpEdge(division->GetNbinsX()), proj2->GetXaxis()->GetBinUpEdge(proj2->GetNbinsX()));
+ //printf("doing axis: %s, y axis has %d %d bins, min %f %f max %f %f\n", axis, division->GetNbinsY(), proj2->GetNbinsY(), division->GetYaxis()->GetBinLowEdge(1), proj2->GetYaxis()->GetBinLowEdge(1), division->GetYaxis()->GetBinUpEdge(division->GetNbinsY()), proj2->GetYaxis()->GetBinUpEdge(proj2->GetNbinsY()));
+ division->Divide(proj, proj2, 1, 1, "B");
+ division->SetTitle(Form("%s divided %s", proj->GetTitle(), proj2->GetTitle()));
+
+ if (putErrors)
+ {
+ division->Sumw2();
+ if (division->GetDimension() == 1)
+ {
+ Int_t nBins = division->GetNbinsX();
+ for (Int_t i = 1; i <= nBins; ++i)
+ if (proj2->GetBinContent(i) != 0)
+ division->SetBinError(i, TMath::Sqrt(proj->GetBinContent(i)) / proj2->GetBinContent(i));
+ }
+ else if (division->GetDimension() == 2)
+ {
+ Int_t nBinsX = division->GetNbinsX();
+ Int_t nBinsY = division->GetNbinsY();
+ for (Int_t i = 1; i <= nBinsX; ++i)
+ for (Int_t j = 1; j <= nBinsY; ++j)
+ if (proj2->GetBinContent(i, j) != 0)
+ division->SetBinError(i, j, TMath::Sqrt(proj->GetBinContent(i, j)) / proj2->GetBinContent(i, j));
+ }
+ }
+
+ if (save)
+ {
+ proj->Write();
+ proj2->Write();
+ division->Write();
+ }
+}
+
+//____________________________________________________________________
+const char* AliPWG0Helper::GetAxisTitle(TH3* hist, const char axis)
+{
+ // returns the title of the axis given in axis (x, y, z)
+
+ if (axis == 'x')
+ return hist->GetXaxis()->GetTitle();
+ else if (axis == 'y')
+ return hist->GetYaxis()->GetTitle();
+ else if (axis == 'z')
+ return hist->GetZaxis()->GetTitle();
+
+ return 0;
+}
+
+
+Int_t 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();
+ 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;
+}
+
+
+Int_t 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();
+ 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;
+}
+
+
+Int_t 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::SetBranchStatusRecursive(TTree* tree, char *bname, Bool_t status, Bool_t debug)
+{
+ // Function to switch on/off all data members of a top level branch
+ // this is needed for branches without a trailing dot ".", for those
+ // the root functionality with regular expressions does not work.
+ // Usage e.g.
+ // chain->SetBranchStatus("*", 0);
+ // SetBranchStatusRecursive(chain,"SPDVertex",1);
+ // You need to give the full name of the top level branch zou want to access
+ //==========================================================================
+ // Author Christian.Klein-Boesing@cern.ch
+
+ if (!tree)
+ return;
+
+ TBranch *br = tree->GetBranch(bname);
+ if(!br) {
+ Printf("AliPWG0Helper::SetBranchStatusRecursive: Branch %s not found", bname);
+ }
+
+ TObjArray *leaves = tree->GetListOfLeaves();
+ Int_t nleaves = leaves->GetEntries();
+ TLeaf *leaf = 0;
+ TBranch *branch = 0;
+ TBranch *mother = 0;
+ for (Int_t i=0;i<nleaves;i++) {
+ // the matched entry e.g. SPDVertex is its own Mother
+ leaf = (TLeaf*)leaves->UncheckedAt(i);
+ branch = (TBranch*)leaf->GetBranch();
+ mother = branch->GetMother();
+ if (mother==br){
+ if (debug)
+ Printf(">>>> AliPWG0Helper::SetBranchStatusRecursive: Setting status %s %s to %d", mother->GetName(), leaf->GetName(), status);
+ if (status) branch->ResetBit(kDoNotProcess);
+ else branch->SetBit(kDoNotProcess);
+ }
+ }
+}
+
+//____________________________________________________________________
+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);
+ }
+}
+
+//____________________________________________________________________
+void AliPWG0Helper::PrintConf(AnalysisMode analysisMode, Trigger trigger)
+{
+ //
+ // Prints the given configuration
+ //
+
+ TString str(">>>> Running with ");
+
+ switch (analysisMode)
+ {
+ case kInvalid: str += "invalid setting"; break;
+ case kSPD : str += "SPD-only"; break;
+ case kTPC : str += "TPC-only"; break;
+ case kTPCITS : str += "Global tracking"; break;
+ }
+
+ str += " and trigger ";
+
+ switch (trigger)
+ {
+ case kMB1 : str += "MB1"; break;
+ case kMB2 : str += "MB2"; break;
+ }
+
+ str += " <<<<";
+
+ Printf("%s", str.Data());
+}
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff