#include <TParticle.h>
#include <TParticlePDG.h>
#include <TH1.h>
+#include <TH2.h>
#include <TH3.h>
#include <TList.h>
#include <TTree.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)
+Int_t AliPWG0Helper::fgLastProcessType = -1;
+
//____________________________________________________________________
Bool_t AliPWG0Helper::IsEventTriggered(const AliESD* aEsd, 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
+
+
+ // definitions from p-p.cfg
+ ULong64_t spdFO = (1 << 14);
+ ULong64_t v0left = (1 << 11);
+ ULong64_t v0right = (1 << 12);
switch (trigger)
{
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;
}
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();
if (vtx_res[2]==0 || vtx_res[2]>0.1)
return kFALSE;
- // check Ncontributors, if <0 it means error *gna*
-
return kTRUE;
}
+//____________________________________________________________________
+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 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)
return 0;
}
-//____________________________________________________________________
-Int_t AliPWG0Helper::GetPythiaEventProcessType(AliHeader* aHeader, Bool_t adebug) {
+
+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();
+ 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;
+}
+
+
+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();
+ 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;
+}
+
+
+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);
+ }
- if (!pythiaGenHeader) {
+ AliGenDPMjetEventHeader* dpmJetGenHeader = dynamic_cast<AliGenDPMjetEventHeader*>(aHeader->GenEventHeader());
+ if (dpmJetGenHeader) {
+ return GetDPMjetEventProcessType(dpmJetGenHeader,adebug);
+ }
+
- AliGenCocktailEventHeader* genCocktailHeader = dynamic_cast<AliGenCocktailEventHeader*>(aHeader->GenEventHeader());
- if (!genCocktailHeader) {
- printf("AliPWG0Helper::GetProcessType : Unknown header type (not Pythia or Cocktail). \n");
- return -1;
- }
+ // check for cocktail
- TList* headerList = genCocktailHeader->GetHeaders();
- if (!headerList) {
- return -1;
- }
+ 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++) {
- for (Int_t i=0; i<headerList->GetEntries(); i++) {
- pythiaGenHeader = dynamic_cast<AliGenPythiaEventHeader*>(headerList->At(i));
- if (pythiaGenHeader)
- break;
+ pythiaGenHeader = dynamic_cast<AliGenPythiaEventHeader*>(headerList->At(i));
+ if (pythiaGenHeader) {
+ return GetPythiaEventProcessType(pythiaGenHeader,adebug);
}
- if (!pythiaGenHeader) {
- printf("AliPWG0Helper::GetProcessType : Could not find Pythia header. \n");
- return -1;
+ dpmJetGenHeader = dynamic_cast<AliGenDPMjetEventHeader*>(headerList->At(i));
+ if (dpmJetGenHeader) {
+ return GetDPMjetEventProcessType(dpmJetGenHeader,adebug);
}
}
+ return kInvalidProcess;
+}
- if (adebug) {
- printf("AliPWG0Helper::GetProcessType : Pythia process type found: %d \n",pythiaGenHeader->ProcessType());
- }
- return pythiaGenHeader->ProcessType();
-}
//____________________________________________________________________
TParticle* AliPWG0Helper::FindPrimaryMother(AliStack* stack, Int_t 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);
+ }
+}
+
+//____________________________________________________________________
+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