class AliAnalysisHelperJetTasks: public TObject

 Fetch  the pythia event header

 Print the stack informatuin up to the iMaxPrint event

 Relate the two input jet Arrays


 The association has to be unique
 So check in two directions
 find the closest rec to a gen
 and check if there is no other rec which is closer
 Caveat: Close low energy/split jets may disturb this correlation
 Idea: search in two directions generated e.g (a--e) and rec (1--3)
 Fill a matrix with Flags (1 for closest rec jet, 2 for closest rec jet
 in the end we have something like this
    1   2   3

 a| 3   2   0
 b| 0   1   0
 c| 0   0   3
 d| 0   0   1
 e| 0   0   1
 Topology
   1     2
     a         b

  d      c
        3     e
 Only entries with "3" match from both sides
 In case we have more jets than kmaxjets only the
 first kmaxjets are searched
 all other are -1
 use kMaxJets for a test not to fragemnt the memory...

 Size indepnedendentt Implemenation of jet matching
 Thepassed TArrayI should be static in the user function an only increased if needed

 Relate the two input jet Arrays


 The association has to be unique
 So check in two directions
 find the closest rec to a gen
 and check if there is no other rec which is closer
 Caveat: Close low energy/split jets may disturb this correlation
 Idea: search in two directions generated e.g (a--e) and rec (1--3)
 Fill a matrix with Flags (1 for closest rec jet, 2 for closest rec jet
 in the end we have something like this
    1   2   3

 a| 3   2   0
 b| 0   1   0
 c| 0   0   3
 d| 0   0   1
 e| 0   0   1
 Topology
   1     2
     a         b

  d      c
        3     e
 Only entries with "3" match from both sides

 Matching jets from two lists
 Start with highest energetic jet from first list (generated/embedded)
 Calculate distance (\Delta R) to all jets from second list (reconstructed)
 Select N closest jets = kClosestJetsN
 Check energy fraction from jets from first list in jets from second list
 Matched jets = jet with largest energy fraction
 Store index of matched jet in TArrayI iMatchIndex
 reset index

 get the fraction of hte signal jet in the full jt

 Routine to merge only directories containing the pattern

 get the cross section and the trails either from pyxsec.root or from pysec_hists.root
 This is to called in Notify and should provide the path to the AOD/ESD file

 Static helper task, (re)set event by event

 set event by event the slection info

 gloab storage/access to event class

 Event shape calculation
 sona.pochybova@cern.ch

 checks if an event has been triggered
 no usage of ofline trigger here yet

 Method to get phi bin o reaction plane

 Static helper task, (re)set event by event