Adding some PWG0 functionality to the helper (MC event types)

diff --git a/PWG4/JetTasks/AliAnalysisHelperJetTasks.cxx b/PWG4/JetTasks/AliAnalysisHelperJetTasks.cxx
index 6ef6715fc680358913c19a78db5406abd326691b..57fcf2436be837aba4c93135309189722318a026 100644 (file)
--- a/PWG4/JetTasks/AliAnalysisHelperJetTasks.cxx
+++ b/PWG4/JetTasks/AliAnalysisHelperJetTasks.cxx
@@ -17,6 +17,7 @@
 #include "AliStack.h"
 #include "AliGenEventHeader.h"
 #include "AliGenCocktailEventHeader.h"
+#include <AliGenDPMjetEventHeader.h>
 #include "AliGenPythiaEventHeader.h"
 #include <fstream>
 #include <iostream>
@@ -27,7 +28,7 @@
 
 ClassImp(AliAnalysisHelperJetTasks)
 
-
+Int_t AliAnalysisHelperJetTasks::fgLastProcessType = -1;
 
  
 AliGenPythiaEventHeader*  AliAnalysisHelperJetTasks::GetPythiaEventHeader(AliMCEvent *mcEvent){
@@ -808,3 +809,74 @@ Bool_t AliAnalysisHelperJetTasks::IsTriggerFired(const AliVEvent* aEv, Trigger t
   }
     return kFALSE;
 }
+
+
+ AliAnalysisHelperJetTasks::MCProcessType  AliAnalysisHelperJetTasks::GetPythiaEventProcessType(AliGenEventHeader* aHeader, Bool_t adebug) {
+
+  AliGenPythiaEventHeader* pythiaGenHeader = dynamic_cast<AliGenPythiaEventHeader*>(aHeader);
+
+  if (!pythiaGenHeader) {
+    printf(" AliAnalysisHelperJetTasks::GetProcessType : Unknown gen Header type). \n");
+    return kInvalidProcess;
+  }
+
+
+  Int_t pythiaType = pythiaGenHeader->ProcessType();
+  fgLastProcessType = pythiaType;
+  MCProcessType globalType = kInvalidProcess;  
+
+
+  if (adebug) {
+    printf(" AliAnalysisHelperJetTasks::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;
+}
+
+
+ AliAnalysisHelperJetTasks::MCProcessType  AliAnalysisHelperJetTasks::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(" AliAnalysisHelperJetTasks::GetDPMjetProcessType : Unknown header type (not DPMjet or). \n");
+    return kInvalidProcess;
+  }
+
+  Int_t dpmJetType = dpmJetGenHeader->ProcessType();
+  fgLastProcessType = dpmJetType;
+  MCProcessType globalType = kInvalidProcess;  
+
+
+  if (adebug) {
+    printf(" AliAnalysisHelperJetTasks::GetDPMJetProcessType : DPMJet process type found: %d \n",dpmJetType);
+  }
+
+
+  if (dpmJetType == 1 || dpmJetType == 4) { // explicitly inelastic plus central diffraction
+    globalType = kND;
+  }  
+  else if (dpmJetType==5 || dpmJetType==6) {
+    globalType = kSD;
+  }
+  else if (dpmJetType==7) {
+    globalType = kDD;
+  }
+  return globalType;
+}
+

diff --git a/PWG4/JetTasks/AliAnalysisHelperJetTasks.h b/PWG4/JetTasks/AliAnalysisHelperJetTasks.h
index cd48bd669b5f776785353df1795a14021815d327..4959b6d22ecca8bd9377fea71920c74f316466c5 100644 (file)
--- a/PWG4/JetTasks/AliAnalysisHelperJetTasks.h
+++ b/PWG4/JetTasks/AliAnalysisHelperJetTasks.h
@@ -8,6 +8,7 @@ class AliVEvent;
 class TString;
 class AliGenPythiaEventHeader;
 class TVector3;
+class AliGenEventHeader;
 
 // Helper Class that contains a lot of usefull static functions (i.e. for Flavor selection.
 
@@ -15,21 +16,6 @@ class AliAnalysisHelperJetTasks : public TObject {
  public:
   AliAnalysisHelperJetTasks() : TObject() {;}
   virtual ~AliAnalysisHelperJetTasks(){;}
-  
-  static AliGenPythiaEventHeader*  GetPythiaEventHeader(AliMCEvent *mcEvent);
-  static void PrintStack(AliMCEvent *mcEvent,Int_t iFirst = 0,Int_t iLast = 0,Int_t iMaxPrint = 10);
-  static void GetClosestJets(AliAODJet *genJets,
-                            const Int_t &kGenJets,
-                            AliAODJet *recJets,
-                            const Int_t &kRecJets,
-                            Int_t *iGenIndex,
-                            Int_t *iRecIndex,
-                            Int_t iDebug, Float_t maxDist = 0.5);
-
-  static void MergeOutput(char* cFiles, char* cDir = "",char *cList = "",char* cOutFile ="allpt.root",Bool_t bUpdate = false); // Merges the files in the input text file  needs the two histograms fh1PtHard_Trials, fh1Xsec and the name of the input list
-  static Bool_t PythiaInfoFromFile(const char* currFile,Float_t &fXsec,Float_t &fTrials);// get the cross section and the trails either from pyxsec.root or from pysec_hists.root
-  static Bool_t PrintDirectorySize(const char* currFile); // print the size of the output on a given file
-  static Bool_t GetEventShapes(TVector3 &n01, TVector3 * pTrack, Int_t nTracks, Double_t * eventShapes);
 
 
   enum {kMaxJets = 6}; //  needed for array size not to fragemnt memory on the heap by many new/delete 
@@ -46,6 +32,30 @@ class AliAnalysisHelperJetTasks : public TObject {
         kTotalSelections = (1<<8) - 1};
 
   enum Trigger {kAcceptAll = 0,kMB1,kMB2,kMB3,kSPDGFO,kTrigger}; // 
+  // same as in PWG0Helper
+  enum MCProcessType { kInvalidProcess = -1, kND = 0x1, kDD = 0x2, kSD = 0x4, kOnePart = 0x8 };
+
+
+
+  
+  static AliGenPythiaEventHeader*  GetPythiaEventHeader(AliMCEvent *mcEvent);
+  static void PrintStack(AliMCEvent *mcEvent,Int_t iFirst = 0,Int_t iLast = 0,Int_t iMaxPrint = 10);
+  static void GetClosestJets(AliAODJet *genJets,
+                            const Int_t &kGenJets,
+                            AliAODJet *recJets,
+                            const Int_t &kRecJets,
+                            Int_t *iGenIndex,
+                            Int_t *iRecIndex,
+                            Int_t iDebug, Float_t maxDist = 0.5);
+
+  static void MergeOutput(char* cFiles, char* cDir = "",char *cList = "",char* cOutFile ="allpt.root",Bool_t bUpdate = false); // Merges the files in the input text file  needs the two histograms fh1PtHard_Trials, fh1Xsec and the name of the input list
+  static Bool_t PythiaInfoFromFile(const char* currFile,Float_t &fXsec,Float_t &fTrials);// get the cross section and the trails either from pyxsec.root or from pysec_hists.root
+  static Bool_t PrintDirectorySize(const char* currFile); // print the size of the output on a given file
+  static Bool_t GetEventShapes(TVector3 &n01, TVector3 * pTrack, Int_t nTracks, Double_t * eventShapes);
+
+  static MCProcessType GetPythiaEventProcessType(AliGenEventHeader* aHeader, Bool_t adebug = kFALSE);
+  static MCProcessType GetDPMjetEventProcessType(AliGenEventHeader* aHeader, Bool_t adebug = kFALSE);
+  static Int_t GetLastProcessType() { return fgLastProcessType; }
 
   static Bool_t Selected(Bool_t bSet = kFALSE,Bool_t bNew = kTRUE); // static function to store the state of selection from service task
 
@@ -60,7 +70,9 @@ class AliAnalysisHelperJetTasks : public TObject {
 
   private:
   
-  ClassDef(AliAnalysisHelperJetTasks, 2) 
+  static Int_t fgLastProcessType;    // stores the raw value of the last process type extracted
+ 
+  ClassDef(AliAnalysisHelperJetTasks, 3) 
 };
 
 #endif // ALIANALYSISHELPERJETTASKS_H