Protection against empty events.

[u/mrichter/AliRoot.git] / PWG4 / PartCorrDep / AliAnaPi0EbE.h

#ifndef ALIANAPI0EBE_H\r
#define ALIANAPI0EBE_H\r
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *\r
 * See cxx source for full Copyright notice     */\r
/* $Id: AliAnaPi0EbE.h 27413 2008-07-18 13:28:12Z gconesab $ */\r
\r
//_________________________________________________________________________\r
//\r
// Class for the analysis of high pT pi0 event by event\r
// Pi0 identified by one of the following:\r
//  -Invariant mass of 2 cluster in calorimeter\r
//  -Shower shape analysis in calorimeter\r
//  -Invariant mass of one cluster in calorimeter and one photon reconstructed in TPC (in near future)\r
//\r
//-- Author: Gustavo Conesa (INFN-LNF)  &  Raphaelle Ichou (SUBATECH)\r
//_________________________________________________________________________\r
\r
\r
// --- ROOT system ---\r
#include <TH2F.h>\r
#include <TString.h>\r
\r
// --- ANALYSIS system ---\r
#include "AliAnaPartCorrBaseClass.h"\r
class AliAODPWG4ParticleCorrelation ;\r
\r
class TList ;\r
\r
class AliAnaPi0EbE : public AliAnaPartCorrBaseClass {\r
\r
public: \r
\r
	AliAnaPi0EbE() ; // default ctor\r
	AliAnaPi0EbE(const AliAnaPi0EbE & g) ; // cpy ctor\r
	AliAnaPi0EbE & operator = (const AliAnaPi0EbE & g) ;//cpy assignment\r
	virtual ~AliAnaPi0EbE() ; //virtual dtor\r
	\r
	enum anaTypes {kIMCalo, kSSCalo, kIMCaloTracks};\r
	\r
	TList *  GetCreateOutputObjects();\r
	\r
	void Init();
	void InitParameters();\r
	\r
	void MakeAnalysisFillAOD()  ;\r
	void MakeAnalysisFillHistograms() ; \r
	\r
	void MakeInvMassInCalorimeter() ;\r
	void MakeInvMassInCalorimeterAndCTS() ;\r
	void MakeShowerShapeIdentification() ;\r
	\r
	void Print(const Option_t * opt)const;\r
	\r
	anaTypes GetAnalysisType()   const {return fAnaType ; }\r
	void SetAnalysisType(anaTypes ana)    {fAnaType = ana ; }\r
	\r
	TString GetInputAODGammaConvName()   const {return fInputAODGammaConvName ; }\r
	void SetInputAODGammaConvName(TString name)    {fInputAODGammaConvName = name ; }	\r
	\r
	//Only for pi0 SS identification case\r
	void SetCalorimeter(TString det)    {fCalorimeter = det ; }\r
\r
	void SetMinDistanceToBadChannel(Float_t m1, Float_t m2, Float_t m3) {\r
		fMinDist = m1;\r
		fMinDist2 = m2;\r
		fMinDist3 = m3;\r
	}\r
	\r
private:\r
 \r
	anaTypes fAnaType; //Select analysis type\r
	\r
	//Only for pi0 SS identification case, kSSCalo\r
	TString fCalorimeter ; // Calorimeter where the gamma is searched;\r
	Float_t fMinDist ;     // Minimal distance to bad channel to accept cluster\r
	Float_t fMinDist2;     // Cuts on Minimal distance to study acceptance evaluation\r
	Float_t fMinDist3;     // One more cut on distance used for acceptance-efficiency study\r
	\r
	//Only for combination of calorimeter and conversion photons, kIMCaloTracks\r
	TClonesArray * fInputAODGammaConv; //AOD array with conversion photons reconstructed in CTS\r
	TString fInputAODGammaConvName;    //Name of AOD branch with conversion photons\r
	\r
	//Histograms\r
	TH1F * fhPtPi0   ;         //! Number of identified  pi0\r
	TH2F * fhPhiPi0  ;         //! Phi of identified  pi0\r
	TH2F * fhEtaPi0  ;         //! eta of identified  pi0  \r
	\r
	//MC\r
	TH1F * fhPtMCNoPi0;   //! Number of identified pi0, not coming from pi0\r
	TH2F * fhPhiMCNoPi0;  //! Phi of identified pi0, not coming from pi0\r
	TH2F * fhEtaMCNoPi0;  //! eta of identified  pi0, not coming from pi0\r
	TH1F * fhPtMCPi0;     //! Number of identified pi0, coming from pi0\r
	TH2F * fhPhiMCPi0;    //! Phi of identified pi0, coming from pi0\r
	TH2F * fhEtaMCPi0;    //! eta of identified pi0, coming from pi0\r
	\r
	ClassDef(AliAnaPi0EbE,1)\r
} ;\r
 \r
\r
#endif //ALIANAPI0EBE_H\r
\r
\r
\r