PWG3/vertexingHF/AliAnalysisVertexingHF.h

   1 #ifndef AliAnalysisVertexingHF_H
   2 #define AliAnalysisVertexingHF_H
   3 /* Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. *
   4  * See cxx source for full Copyright notice                               */
   5
   6 //-------------------------------------------------------------------------
   7 //                      Class AliAnalysisVertexingHF
   8 //            Reconstruction of heavy-flavour decay candidates
   9 //
  10 //  Origin: E.Bruna, G.E.Bruno, A.Dainese, F.Prino, R.Romita, X.M.Zhang
  11 //  Contact: andrea.dainese@lnl.infn.it
  12 //-------------------------------------------------------------------------
  13
  14 #include <TNamed.h>
  15 #include "AliESDVertex.h"
  16 #include "AliAODRecoDecayHF.h"
  17 #include "AliAODRecoDecayHF2Prong.h"
  18 #include "AliAODRecoDecayHF3Prong.h"
  19 #include "AliAODRecoDecayHF4Prong.h"
  20 #include "AliAODRecoCascadeHF.h"
  21 #include "AliAnalysisFilter.h"
  22
  23 class AliESDtrack;
  24 class AliVEvent;
  25 class AliAODVertex;
  26
  27 //-----------------------------------------------------------------------------
  28 class AliAnalysisVertexingHF : public TNamed {
  29  public:
  30   //
  31   AliAnalysisVertexingHF();
  32   AliAnalysisVertexingHF(const AliAnalysisVertexingHF& source);
  33   AliAnalysisVertexingHF& operator=(const AliAnalysisVertexingHF& source);
  34   virtual ~AliAnalysisVertexingHF();
  35
  36   void FindCandidates(AliVEvent *event,
  37                       TClonesArray *aodVerticesHFTClArr,
  38                       TClonesArray *aodD0toKpiTClArr,
  39                       TClonesArray *aodJPSItoEleTClArr,
  40                       TClonesArray *aodCharm3ProngTClArr,
  41                       TClonesArray *aodCharm4ProngTClArr,
  42                       TClonesArray *aodDstarTClArr);
  43
  44   void PrintStatus() const;
  45   void SetSecVtxWithKF() { fSecVtxWithKF=kTRUE; }
  46   void SetD0toKpiOn() { fD0toKpi=kTRUE; }
  47   void SetD0toKpiOff() { fD0toKpi=kFALSE; }
  48   void SetJPSItoEleOn() { fJPSItoEle=kTRUE; }
  49   void SetJPSItoEleOff() { fJPSItoEle=kFALSE; }
  50   void Set3ProngOn() { f3Prong=kTRUE; }
  51   void Set3ProngOff() { f3Prong=kFALSE; }
  52   void Set4ProngOn() { f4Prong=kTRUE; }
  53   void Set4ProngOff() { f4Prong=kFALSE; }
  54   void SetDstarOn() { fDstar=kTRUE; }
  55   void SetDstarOff() { fDstar=kFALSE; }
  56   Bool_t GetD0toKpi() { return fD0toKpi; }
  57   Bool_t GetJPSItoEle() { return fJPSItoEle; }
  58   Bool_t Get3Prong() { return f3Prong; }
  59   Bool_t Get4Prong() { return f4Prong; }
  60   Bool_t GetDstar()  { return fDstar; }
  61   void SetRecoPrimVtxSkippingTrks()
  62     { fRecoPrimVtxSkippingTrks=kTRUE; fRmTrksFromPrimVtx=kFALSE;}
  63   void SetRmTrksFromPrimVtx()
  64     {fRmTrksFromPrimVtx=kTRUE; fRecoPrimVtxSkippingTrks=kFALSE; }
  65   void SetTrackFilter(AliAnalysisFilter* trackF) { fTrackFilter = trackF; }
  66   void SetTrackFilterSoftPi(AliAnalysisFilter* trackF) { fTrackFilterSoftPi = trackF; }
  67   void SetD0toKpiCuts(Double_t cut0=1000.,Double_t cut1=100000.,
  68                       Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
  69                       Double_t cut5=100000.,Double_t cut6=100000.,
  70                       Double_t cut7=100000000.,Double_t cut8=-1.1);
  71   void SetD0toKpiCuts(const Double_t cuts[9]);
  72   void SetD0fromDstarCuts(Double_t cut0=1000.,Double_t cut1=100000.,
  73                           Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
  74                           Double_t cut5=100000.,Double_t cut6=100000.,
  75                           Double_t cut7=100000000.,Double_t cut8=-1.1);
  76   void SetD0fromDstarCuts(const Double_t cuts[9]);
  77   void SetBtoJPSICuts(Double_t cut0=1000.,Double_t cut1=100000.,
  78                       Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
  79                       Double_t cut5=100000.,Double_t cut6=100000.,
  80                       Double_t cut7=100000000.,Double_t cut8=-1.1);
  81   void SetBtoJPSICuts(const Double_t cuts[9]);
  82   void SetDplusCuts(Double_t cut0=1000.,Double_t cut1=0.,
  83                     Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
  84                     Double_t cut5=0.,Double_t cut6=10000000000.,
  85                     Double_t cut7=0.,Double_t cut8=0.,
  86                     Double_t cut9=-1.1,Double_t cut10=0.,
  87                     Double_t cut11=10000000000.);
  88   void SetDplusCuts(const Double_t cuts[12]);
  89   void SetDsCuts(Double_t cut0=1000.,Double_t cut1=0.,
  90                 Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
  91                 Double_t cut5=0.,Double_t cut6=10000000000.,
  92                 Double_t cut7=0.,Double_t cut8=0.,
  93                 Double_t cut9=-1.1,Double_t cut10=0.,
  94                 Double_t cut11=10000000000., Double_t cut12=1000.);
  95   void SetDsCuts(const Double_t cuts[13]);
  96   void SetLcCuts(Double_t cut0=1000.,Double_t cut1=0.,
  97                  Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
  98                  Double_t cut5=0.,Double_t cut6=10000000000.,
  99                  Double_t cut7=0.,Double_t cut8=0.,
 100                  Double_t cut9=-1.1,Double_t cut10=0.,
 101                  Double_t cut11=10000000000.);
 102   void SetLcCuts(const Double_t cuts[12]);
 103   void SetDstarCuts(Double_t cut0=1000., Double_t cut1=1000.,
 104                       Double_t cut2=-1., Double_t cut3=1000.,
 105                       Double_t cut4=1.6);
 106   void SetDstarCuts(const Double_t cuts[5]);
 107
 108   //
 109  private:
 110   //
 111   enum { kBitDispl = 0, kBitSoftPi = 1 };
 112
 113   Bool_t fInputAOD; // input from AOD (kTRUE) or ESD (kFALSE)
 114
 115   Int_t *fAODMap; // map between index and ID for AOD tracks
 116
 117   Double_t fBzkG; // z componenent of field in kG
 118
 119   Bool_t fSecVtxWithKF; // if kTRUE use KF vertexer, else AliVertexerTracks
 120
 121   Bool_t fRecoPrimVtxSkippingTrks; // flag for primary vertex reco on the fly
 122                                    // for each candidate, w/o its daughters
 123   Bool_t fRmTrksFromPrimVtx; // flag for fast removal of daughters from
 124                              // the primary vertex
 125
 126   AliESDVertex *fV1; // primary vertex
 127
 128   // flag to enable candidates production
 129   Bool_t fD0toKpi;   // D0->Kpi
 130   Bool_t fJPSItoEle; // Jpsi->ee
 131   Bool_t f3Prong;    // D+,Ds,Lc
 132   Bool_t f4Prong;    // D0->Kpipipi
 133   Bool_t fDstar;     // D*->D0pi
 134
 135   // single-track cuts
 136   AliAnalysisFilter *fTrackFilter; //  Track Filter for displaced vertices
 137   AliAnalysisFilter *fTrackFilterSoftPi; //  Track Filter for D* soft pion
 138   // candidates cuts
 139   Double_t fD0toKpiCuts[9]; // cuts on D0->Kpi candidates
 140                   // (to be passed to AliAODRecoDecayHF2Prong::SelectD0())
 141                           // 0 = inv. mass half width [GeV]
 142                           // 1 = dca [cm]
 143                           // 2 = cosThetaStar
 144                           // 3 = pTK [GeV/c]
 145                           // 4 = pTPi [GeV/c]
 146                           // 5 = d0K [cm]   upper limit!
 147                           // 6 = d0Pi [cm]  upper limit!
 148                           // 7 = d0d0 [cm^2]
 149                           // 8 = cosThetaPoint
 150   Double_t fD0fromDstarCuts[9]; // cuts on D0->Kpi candidates from D*
 151                         // (to be passed to AliAODRecoCascadeHF::SelectDstar())
 152                           // 0 = inv. mass half width [GeV]
 153                           // 1 = dca [cm]
 154                           // 2 = cosThetaStar
 155                           // 3 = pTK [GeV/c]
 156                           // 4 = pTPi [GeV/c]
 157                           // 5 = d0K [cm]   upper limit!
 158                           // 6 = d0Pi [cm]  upper limit!
 159                           // 7 = d0d0 [cm^2]
 160                           // 8 = cosThetaPoint
 161   Double_t fBtoJPSICuts[9]; // cuts on JPSI candidates
 162                   // (to be passed to AliAODRecoDecayHF2Prong::SelectBtoJPSI())
 163                           // 0 = inv. mass half width [GeV]
 164                           // 1 = dca [cm]
 165                           // 2 = cosThetaStar (negative electron)
 166                           // 3 = pTP [GeV/c]
 167                           // 4 = pTN [GeV/c]
 168                           // 5 = d0O [cm]   upper limit!
 169                           // 6 = d0N [cm]  upper limit!
 170                           // 7 = d0d0 [cm^2]
 171                           // 8 = cosThetaPoint
 172   Double_t fDplusCuts[12]; // cuts on Dplus candidates
 173                   // (to be passed to AliAODRecoDecayHF3Prong::SelectDplus())
 174                           // 0 = inv. mass half width [GeV]
 175                           // 1 = pTK [GeV/c]
 176                           // 2 = pTPi [GeV/c]
 177                           // 3 = d0K [cm]   lower limit!
 178                           // 4 = d0Pi [cm]  lower limit!
 179                           // 5 = dist12 (cm)
 180                           // 6 = sigmavert (cm)
 181                           // 7 = dist prim-sec (cm)
 182                           // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
 183                           // 9 = cosThetaPoint
 184                           // 10 = Sum d0^2 (cm^2)
 185                           // 11 = dca cut (cm)
 186   Double_t fDsCuts[13]; // cuts on Ds candidates
 187                         // (to be passed to AliAODRecoDecayHF3Prong::SelectDs())
 188                         // 0 = inv. mass half width [GeV]
 189                         // 1 = pTK [GeV/c]
 190                         // 2 = pTPi [GeV/c]
 191                         // 3 = d0K [cm]   lower limit!
 192                         // 4 = d0Pi [cm]  lower limit!
 193                         // 5 = dist12 (cm)
 194                         // 6 = sigmavert (cm)
 195                         // 7 = dist prim-sec (cm)
 196                         // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
 197                         // 9 = cosThetaPoint
 198                         // 10 = Sum d0^2 (cm^2)
 199                         // 11 = dca cut (cm)
 200                         // 12 = inv. mass cut arounf phi and K0* [GeV]
 201    Double_t fLcCuts[12]; // cuts on Lambdac candidates
 202                         // (to be passed to AliAODRecoDecayHF3Prong::SelectLc())
 203                         // 0 = inv. mass half width [GeV]
 204                         // 1 = pTP [GeV/c]
 205                         // 2 = pTPi abd pTK [GeV/c]
 206                         // 3 = d0P [cm]   lower limit!
 207                         // 4 = d0Pi and d0K [cm]  lower limit!
 208                         // 5 = dist12 (cm)
 209                         // 6 = sigmavert (cm)
 210                         // 7 = dist prim-sec (cm)
 211                         // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
 212                         // 9 = cosThetaPoint
 213                         // 10 = Sum d0^2 (cm^2)
 214                         // 11 = dca cut (cm)
 215   Double_t fDstarCuts[5]; // cuts on D* candidates
 216                         // (to be passed to AliAODRecoCascadeHF::SelectDstar())
 217                         // 0 = inv. mass half width of D* [GeV]
 218                         // 1 = half width of (M_Kpipi-M_Kpi) [GeV]
 219                         // 2 = PtMin of pi_s [GeV/c]
 220                         // 3 = PtMax of pi_s [GeV/c]
 221                         // 4 = theta, angle between the track of pi_s and D0 decay plane [rad]
 222
 223   //
 224   void AddDaughterRefs(AliAODVertex *v,AliVEvent *event,
 225                        TObjArray *trkArray) const;
 226   AliAODRecoDecayHF2Prong* Make2Prong(TObjArray *twoTrackArray1,AliVEvent *event,
 227                                       AliAODVertex *secVert,Double_t dcap1n1,
 228                                       Bool_t &okD0,Bool_t &okJPSI,Bool_t &okD0fromDstar) const;
 229   AliAODRecoDecayHF3Prong* Make3Prong(TObjArray *threeTrackArray,AliVEvent *event,
 230                                       AliAODVertex *secVert,
 231                                       Double_t dispersion,
 232                                       AliAODVertex *vertexp1n1,
 233                                       AliAODVertex *vertexp2n1,
 234                                       Double_t dcap1n1,Double_t dcap2n1,Double_t dcap1p2,
 235                                       Bool_t &ok3Prong) const;
 236   AliAODRecoDecayHF4Prong* Make4Prong(TObjArray *fourTrackArray,AliVEvent *event,
 237                                       AliAODVertex *secVert,
 238                                       AliAODVertex *vertexp1n1,
 239                                       AliAODVertex *vertexp2n1,
 240                                       Double_t dcap1n1,Double_t dcap1n2,
 241                                       Double_t dcap2n1,
 242                                       Bool_t &ok4Prong) const;
 243   AliAODRecoCascadeHF* MakeCascade(TObjArray *twoTrackArray,AliVEvent *event,
 244                                    AliAODVertex *secVert,
 245                                    AliAODRecoDecayHF2Prong *rd2Prong,
 246                                    Double_t dca,
 247                                    Bool_t &okDstar) const;
 248
 249   AliAODVertex* PrimaryVertex(TObjArray *trkArray=0x0,AliVEvent *event=0x0) const;
 250   AliAODVertex* ReconstructSecondaryVertex(TObjArray *trkArray,Double_t &dispersion,Bool_t useTRefArray=kTRUE) const;
 251   Bool_t SelectInvMass(Int_t decay,Int_t nprongs,
 252                        Double_t *px,Double_t *py,Double_t *pz) const;
 253   void   SelectTracksAndCopyVertex(AliVEvent *event,
 254                                    TObjArray &seleTrksArray,Int_t &nSeleTrks,
 255                                    UChar_t *seleFlags);
 256   void   SetPrimaryVertex(AliESDVertex *v1) { fV1 = v1; }
 257   Bool_t SingleTrkCuts(AliESDtrack *trk,Bool_t &okDisplaced,Bool_t &okSoftPi) const;
 258   //
 259   ClassDef(AliAnalysisVertexingHF,6)  // Reconstruction of HF decay candidates
 260 };
 261
 262
 263 #endif
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