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 #ifndef CALOEMCPI0TBT_PI0ETABYETA_H
 #define CALOEMCPI0TBT_PI0ETABYETA_H
 
 #include <globalvertex/GlobalVertex.h>
 
 #include <fun4all/SubsysReco.h>
 
 // #include <CLHEP/Vector/ThreeVector.h>  // for Hep3Vector
 #include <array>
 #include <string>  // for string
 #include <vector>
 
 // Forward declarations
 class Fun4AllHistoManager;
 class PHCompositeNode;
 class TFile;
 class TNtuple;
 class TTree;
 class TH2;
 class TH1;
 class TF1;
 class TProfile2D;
 class TH3;
 class TriggerAnalyzer;
 
 namespace CLHEP
 {
   class Hep3Vector;
 }
 
 class pi0EtaByEta : public SubsysReco
 {
  public:
   //! constructor
   pi0EtaByEta(const std::string& name = "pi0EtaByEta", const std::string& filename = "MyNtuple.root");
 
   //! destructor
   virtual ~pi0EtaByEta();
 
   //! full initialization
   int Init(PHCompositeNode*);
 
   //! event processing method
   int process_event(PHCompositeNode*);
 
   //! end of run method
   int End(PHCompositeNode*);
 
   int process_g4hits(PHCompositeNode*);
   int process_g4cells(PHCompositeNode*);
   int process_towers(PHCompositeNode*);
   int process_clusters(PHCompositeNode*);
 
   void Detector(const std::string& name) { detector = name; }
   void set_timing_cut_width(const int t) { _range = t; }
   void set_vertex_cut(const float v) { _vz = v; }
   void apply_vertex_cut(bool Vtx_cut) { doVtxCut = Vtx_cut; }
 
   static TF1* fitHistogram(TH1* h);
   void fitEtaSlices(const std::string& infile, const std::string& outfile, const std::string& cdbFile);
 
   void fitEtaPhiTowers(const std::string& infile, const std::string& fitOutFile, const std::string& cdbFile);  // for tbt pi0 fit
 
   void Split3DHist(const std::string& infile, const std::string& out_file);
 
   void set_use_pdc(bool state)
   {
     use_pdc = state;
     return;
   }
   void set_pt1BaseClusCut(float fac)
   {
     pt1BaseClusCut = fac;
     return;
   }
   void set_pt2BaseClusCut(float fac)
   {
     pt2BaseClusCut = fac;
     return;
   }
   void set_NclusDeptFac(float fac)
   {
     NclusDeptFac = fac;
     return;
   }
   void set_doMix(bool state)
   {
     doMix = state;
     return;
   }
   void set_calibConvLev(float val)
   {
     convLev = val;
     return;
   }
   void set_RunTowByTow(bool state)  // to decide if we want to run tbt (default is true)
   {
     runTowByTow = state;
     return;
   }
   void SetTargetMass(float mass)
   {
     target_pi0_mass = mass;
   }
 
   void set_RunTBTCompactMode(bool state)  // to decide if we want to run in TBT in compact mode (default is true)
   {
     runTBTCompactMode = state;
     return;
   }
 
   void set_massTargetHistFile(const std::string& file);
   bool checkOutput(const std::string& file);
   void set_reqTrig(bool status, const std::vector<int>& list)
   {
     reqTrig = status;
     triggerList = list;
   }
   void set_reqTrig(bool status)
   {
     reqTrig = status;
   }
 
   void set_GlobalVertexType(GlobalVertex::VTXTYPE type)
   {
     m_use_vertextype = true;
     m_vertex_type = type;
   }
 
   void set_requireVertex(bool state)
   {
     reqVertex = state;
     return;
   }
 
   void set_useVertexTruth(bool state)
   {
     useVertexTruth = state;
   }
   void set_calib_fieldname(std::string &name)
   {
     m_fieldname = name;
   } 
 
  protected:
   int Getpeaktime(TH1* h);
   std::string detector;
   std::string outfilename;
 
   bool reqTrig = true;
   std::vector<int> triggerList;
   bool reqVertex = false;
   std::string m_fieldname = "CEMC_calib_ADC_to_ETower";
 
   bool doVtxCut{true};
   float vtx_z_cut{20};
   bool m_use_vertextype{false};
   GlobalVertex::VTXTYPE m_vertex_type{GlobalVertex::UNDEFINED};
 
   float pt1BaseClusCut{1.3};
   float pt2BaseClusCut{0.7};
   float NclusDeptFac{1.4};
 
   std::vector<float> m_energy;
   std::vector<int> m_etabin;
   std::vector<int> m_phibin;
   std::vector<int> m_time;
 
   std::vector<float> m_hcalin_energy;
   std::vector<int> m_hcalin_etabin;
   std::vector<int> m_hcalin_phibin;
   std::vector<int> m_hcalin_time;
 
   std::vector<float> m_hcalout_energy;
   std::vector<int> m_hcalout_etabin;
   std::vector<int> m_hcalout_phibin;
   std::vector<int> m_hcalout_time;
 
   std::vector<float> m_zdc_energy;
   std::vector<int> m_zdc_index;
   std::vector<int> m_zdc_side;
 
   std::vector<float> m_bbc_energy;
   std::vector<int> m_bbc_type;
   std::vector<int> m_bbc_side;
 
   std::array<TH1*, 96> h_mass_eta_lt{};
   std::array<std::array<TH1*, 256>, 96> h_mass_tbt_lt{};
 
   int _eventcounter{0};
   int _range{1};
 
   float _vz{0.};
   float target_pi0_mass{0.146};
 
   bool dynMaskClus{false};
   bool doMix{false};
   bool use_pdc{false};
   bool runTowByTow{true};        // default set not to run tbt
   bool runTBTCompactMode{true};  // default set to run in compact mode
 
   std::vector<std::vector<std::vector<CLHEP::Hep3Vector>>>* clusMix;
   const int NBinsClus{10};
   TH1* h_vtx_bin{nullptr};
   int NBinsVtx{30};
   TH1* h_event{nullptr};
 
   TFile* outfile{nullptr};
   Fun4AllHistoManager* hm{nullptr};
 
   TH2* h_emcal_mbd_correlation{nullptr};
   TH2* h_ohcal_mbd_correlation{nullptr};
   TH2* h_ihcal_mbd_correlation{nullptr};
   TH2* h_emcal_hcal_correlation{nullptr};
   TH2* h_emcal_zdc_correlation{nullptr};
 
   TH1* h_InvMass{nullptr};
   TH1* h_InvMassMix{nullptr};
 
   TH1* h_target_mass{nullptr};
   bool use_h_target_mass{false};
 
   TH2* h_cemc_etaphi{nullptr};
   TH2* h_hcalin_etaphi{nullptr};
   TH2* h_hcalout_etaphi{nullptr};
   TH2* h_cemc_etaphi_wQA{nullptr};
   TH2* h_hcalin_etaphi_wQA{nullptr};
   TH2* h_hcalout_etaphi_wQA{nullptr};
   TH1* h_totalzdc_e{nullptr};
   TH3* h_ieta_iphi_invmass{nullptr};
 
   bool useVertexTruth = false;
 
   TProfile2D* h_cemc_etaphi_time{nullptr};
   TProfile2D* h_hcalin_etaphi_time{nullptr};
   TProfile2D* h_hcalout_etaphi_time{nullptr};
 
   TProfile2D* h_cemc_etaphi_badChi2{nullptr};
   TProfile2D* h_hcalin_etaphi_badChi2{nullptr};
   TProfile2D* h_hcalout_etaphi_badChi2{nullptr};
 
   TH1* hzdctime{nullptr};
   TH1* hmbdtime{nullptr};
   TH1* hemcaltime{nullptr};
   TH1* hihcaltime{nullptr};
   TH1* hohcaltime{nullptr};
 
   TH1* hzdctime_cut{nullptr};
   TH1* hmbdtime_cut{nullptr};
   TH1* hemcaltime_cut{nullptr};
   TH1* hihcaltime_cut{nullptr};
   TH1* hohcaltime_cut{nullptr};
 
   TH1* hvtx_z_raw{nullptr};
   TH1* hvtx_z_cut{nullptr};
 
   TH1* hzdcSouthraw{nullptr};
   TH1* hzdcNorthraw{nullptr};
   TH1* hzdcSouthcalib{nullptr};
   TH1* hzdcNorthcalib{nullptr};
 
   TH1* h_clus_pt{nullptr};
   TH2* h_etaphi_clus{nullptr};
 
   TNtuple* g4hitntuple{nullptr};
   TNtuple* g4cellntuple{nullptr};
   TTree* towerntuple{nullptr};
   TNtuple* clusterntuple{nullptr};
   TH1* h_cemc_etaphi_noCalib{nullptr};
 
   TH1* h_pt1{nullptr};
   TH1* h_pt2{nullptr};
   TH1* h_nclusters{nullptr};
   TH1* h_emcal_e_eta{nullptr};
 
   TriggerAnalyzer* trigAna{nullptr};
 
   float convLev = {0.005};
 };
 
 #endif

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