bin: p=10-15, pt=1.1-1.3

general
-------

- all iflag=0 tracks
- a lot of short VT1 only tracks (around 15 points or even less) - they leave 
  the VT1 on the top or bottom: if they are too short the fit without vertex 
  constraint gives very often a huge bx,by, but with vertex constraint the fit 
  is also very nice (because of the few points it's not really distinuishable, 
  which one's better!)
- sometimes very few lost points, especially at the borders of the TPCs, and 
  sometimes somewhere in the middle of the MTPC
- some MTPC only tracks because the track goes through the VT1 and VT2 middle 
  gap
- very few V0 candidates (~3%), most of them (~2/3) also would fit as good 
  main vertex tracks!
- sometimes problems with potential point calculation, especially if there 
  are no actual points?!
- for negatives 2 split track candidates, for positives none

positives
---------

~ 17% wrongside tracks: 1,7,8,10,12,13,15,20,39,51,64,71,72,73,74,78,89 
  (I guess that's not a full list...)

e.g. 7: MTPC only track with (also potentially) NO VT points ... reliable?
e.g. 8,10,12: VT1 only wrongsidetrack, no potential points in VT2, MTPC 
     ... reliable?
11,66,78: no potentail points calculated for MTPC, but track goes right through! (without actual points)

45: only 7 fitted points, VT1 only, but evtually some lost points in VT2 
   (wouldn't fit to the main vertex any more in that case)... reliable or 
   lost V0 candidate?

56: V0 candidate that fits nicely to the main vertex, b=(0.55 0.04)

68: real V0 candidate? b=(2.62 0.51)


negatives
---------

(~20%) wrongside tracks: 5,8,11,12,17,31,32,35,42,46,47,51,55,57,61,64,69,
              70,72,86 (I guess that's not a full list...)

11: no potentail points calculated for MTPC, but track goes right through! 
   (without or only a few actual points)

40: V0 candidate, but also good as main vertex track?! b=(-0.31 0.02)
44:                         "                           b=(-0.22 0.02)

e.g. 34,52,74,79,86,91: MTPC only, track goes through the VT middle gap
86: in addition split track

61,72: wrongside & VT1-VT2-split(?) track with actual but no(!) potential 
       points in VT2, and no actual and no(!) potential points in MTPC 
       although the track goes through 

95: V0 candidate, MTPC only track which also could be a nice main vertex 
    track, b=(0.21 -0.07)