HPairEvtMixer

class HPairEvtMixer : public HReconstructor

    protected:

          Bool_t checkMixedPair(HPairExt*)
          Bool_t checkMixedPair(HPairSimExt*)
          Bool_t checkParticle(HPidParticle*)
            void deleteStoredEvents()
      TObjArray* doEventMixingAllTracks()
      HCategory* getPairCat()
      HCategory* getPidParticleCat()
           Int_t makeMixedPairs()
            void shrinkEventBuffer()
           Int_t storeEvent()
           Int_t storeEventWithoutPairAnalysis()
           Int_t storeEventWithPairAnalysis()

    public:

                      HPairEvtMixer()
                      HPairEvtMixer(Text_t* name, Text_t* title, Int_t nBufferSize = 100, Int_t nBufferMethod = 1, Int_t nPairAna = 1, Int_t nShrinkPoolByThisNumberOfEvents = 1, Int_t rndnr = 0, Int_t nMinNbLepsPerEvt = 0, Int_t nUnlikeSignOnly = 0)
                      ~HPairEvtMixer()
       static TClass* Class()
        virtual Int_t execute()
       virtual Bool_t finalize()
             TString& getQAFileName()
       virtual Bool_t init()
      virtual TClass* IsA() const
                 void setQAFileName(const Char_t* c)
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
         virtual void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)
                 void useUnlikesignOnly(Bool_t k)

Data Members

    protected:

             Int_t nCounterProcessedNbEvents  
        HCategory* pCatPidParticle            !
        HIterator* pIterPidParticle           !
        HCategory* pCatPair                   !
        HIterator* pIterPair                  !
      HPairCutPar* pCuts                      !
            Bool_t kIsReal                    !
            Bool_t kFirstMixing               ! 
            Bool_t kOnlyUnlikeSign            ! 
             Int_t evtrange                   ! number of evts to store for mixing
             Int_t evtsStoredInRange          ! counter for nb of evts within evtrange
             Int_t nrMixObjs                  ! number of rand. chosen objs per evt for mixing
             Int_t nCntMixedEvts              ! number of event pairs
             Int_t nBufferFillingMethod       ! 0: discrete (default); 1: ring 
             Int_t nShrinkPool                ! number of events to shift ring buffer
             Int_t nPairAnalysis              ! switch : 0 (default) no pair analysis 
             Int_t nMinParticlesPerEvent      ! min number of particles needed per event
             Int_t nStoredEvts                ! counter of stored events
        TObjArray* evtset                     ! event pool holding 1 array with particles per event 
           TString cQAFileName                !
          HPairQA* pQA                        !

Class Description

 HPairEvtMixer

 set ctor arguments to class data

 store particles for event mixing without pair analysis

 store particles for mixing with the help of a pair property analysis

 loop over event pool "evtset"

 create event pairs from the event pool and
 create particle pairs (HPairExt) from all particles in both events
 store these pairs in a TObjArray and return it

 This function checks a particle and decides if it is stored
 for mixing or not.

 This function checks a pair and decides if it is stored
 FIXME: Do this via the cut object used in std pairs analysis !

 call the event mixing routine and fill the pair ntuple

Inline Functions

               void setQAFileName(const Char_t* c)
           TString& getQAFileName()
               void useUnlikesignOnly(Bool_t k)
         HCategory* getPidParticleCat()
         HCategory* getPairCat()
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)