bin: p=30-50, pt=0.3-0.5

general
-------

rather homogenous and unproblematic bin!

- all iflag=0 tracks
- usually tracks go through the middle gap of VT1 but cross VT2 and MTPC, or 
  are even MTPC only tracks because they even don't cross VT2 (in this cases 
  there are sometimes some lost points at the edges of VT2)
- fits without main vertex constraint gives sometimes relatively big (bx,by) 
  eg b=(14.88 0.10), b=(6.12 -0.02), but with main vertex constraint the track 
  fits also nicely!
- all tracks have usually more than 90% of the potential points, except 
  VT2-edge-MTPC tracks (see two comments above) 
- again problems with a/p-ratio calculations?! (see eg, pos. track 64)
- no wrongside tracks
- 6% (for pos) and 3% (for neg) V0 candidates that could as well be good 
  main vertex tracks



positives
---------

V0 candidates, might as well be an honest main vertex track (even with the 
   sometimes big bx,by, see general comments)! 

28: b=(9.59 0.97)
33: b=(0.05 0.03)
37: b=(0.21 0.05)
42: b=(0.11 -0.06)
45: b=(0.47 0.16)
84: b=(0.51 0.02)

64: no actual points in MTPC although the track goes right through - but there 
    are also no potential points calculated!


negatives
---------

V0 candidates, might as well be an honest main vertex track (even with the 
   sometimes big bx,by, see general comments)! 

28: b=(0.96 -0.04)
36: b=(-5.09 -0.22)
38: b=(-2.15 -0.27)