1 #ifndef ALIEMCALUNFOLDING_H
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2 #define ALIEMCALUNFOLDING_H
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3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
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4 * See cxx source for full Copyright notice */
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6 //_________________________________________________________________________
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7 // Base class for the cluster unfolding algorithm
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8 //*-- Author: Adam Matyja (SUBATECH)
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10 // --- ROOT system ---
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12 #include "TObject.h"
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15 // --- Standard library ---
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17 // --- AliRoot header files ---
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18 class AliEMCALGeometry ;
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19 //class AliEMCALCalibData ;
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20 //class AliCaloCalibPedestal ;
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21 class AliEMCALRecPoint ;
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22 class AliEMCALDigit ;
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25 class AliEMCALUnfolding : public TObject {
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29 AliEMCALUnfolding() ; // default ctor
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30 virtual ~AliEMCALUnfolding() ; // dtorEM
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31 AliEMCALUnfolding(AliEMCALGeometry* geometry);// constructor
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32 AliEMCALUnfolding(AliEMCALGeometry* geometry,Float_t ECALocMaxCut,Double_t *SSPars,Double_t *Par5,Double_t *Par6);// constructor
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34 virtual void Init() ;
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35 virtual void SetInput(Int_t numberOfECAClusters,TObjArray *recPoints,TClonesArray *digitsArr);
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37 //setters and getters
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38 virtual void SetNumberOfECAClusters(Int_t n) { fNumberOfECAClusters = n; }
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39 virtual Int_t GetNumberOfECAClusters() const { return fNumberOfECAClusters; }
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40 virtual void SetRecPoints(TObjArray *rec) { fRecPoints = rec; }
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41 virtual TObjArray * GetRecPoints() const { return fRecPoints; }
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42 virtual void SetDigitsArr(TClonesArray *digit) { fDigitsArr = digit; }
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43 virtual TClonesArray * GetDigitsArr() const { return fDigitsArr; }
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44 virtual void SetECALocalMaxCut(Float_t cut) { fECALocMaxCut = cut ; }
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45 virtual Float_t GetECALocalMaxCut() const { return fECALocMaxCut; }
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47 //unfolding main methods
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48 virtual void MakeUnfolding();
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49 static Double_t ShowerShapeV2(Double_t x, Double_t y) ; // Shape of EM shower used in unfolding;
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50 //class member function (not object member function)
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51 static void UnfoldingChiSquareV2(Int_t & nPar, Double_t * Grad, Double_t & fret, Double_t * x, Int_t iflag) ;
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52 // Chi^2 of the fit. Should be static to be passes to MINUIT
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53 virtual void SetShowerShapeParams(Double_t *pars) ;
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54 virtual Double_t* GetShowerShapeParams() const { return fSSPars ; }
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55 virtual void SetPar5(Double_t *pars) ;
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56 virtual Double_t* GetPar5() const { return fPar5 ; }
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57 virtual void SetPar6(Double_t *pars) ;
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58 virtual Double_t* GetPar6() const { return fPar6 ; }
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61 Int_t fNumberOfECAClusters ; // number of clusters found in EC section
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62 Float_t fECALocMaxCut ; // minimum energy difference to distinguish local maxima in a cluster
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63 AliEMCALGeometry * fGeom; //! pointer to geometry for utilities
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64 TObjArray *fRecPoints; // Array with EMCAL clusters
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65 TClonesArray *fDigitsArr; // Array with EMCAL digits
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68 AliEMCALUnfolding(const AliEMCALUnfolding &); //copy ctor
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69 AliEMCALUnfolding & operator = (const AliEMCALUnfolding &);
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71 Bool_t UnfoldClusterV2(AliEMCALRecPoint * iniEmc, Int_t Nmax,
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72 AliEMCALDigit ** maxAt,
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73 Float_t * maxAtEnergy ); //Unfolds cluster using TMinuit package
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74 Bool_t FindFitV2(AliEMCALRecPoint * emcRP, AliEMCALDigit ** MaxAt, const Float_t * maxAtEnergy,
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75 Int_t NPar, Float_t * FitParametres) const; //Used in UnfoldClusters, calls TMinuit
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77 static Double_t fSSPars[8];//! Unfolding shower shape parameters
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79 // f(r)=exp(-(p0*r)^p1 * (1/(p2+p3*(p0*r)^p1)+p4/(1+p6*(p0*r)^p5) ) )
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80 // p0,p1,p2,p3,p4 are fixed
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81 // params p5 and p6 are phi-dependent and set in ShowerShapeV2
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82 static Double_t fPar5[3];//! UF SSPar nr 5 = p0 + phi*p1 + phi^2 *p2
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83 static Double_t fPar6[3];//! UF SSPar nr 6 = p0 + phi*p1 + phi^2 *p2
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84 static void EvalPar5(Double_t phi);
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85 static void EvalPar6(Double_t phi);
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86 static void EvalParsPhiDependence(Int_t absId, AliEMCALGeometry *geom);
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88 ClassDef(AliEMCALUnfolding,1) // Unfolding algorithm class
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91 #endif // AliEMCALUNFOLDING_H
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