p=1-2 pt=1.1-1.3

Positives:
^^^^^^^^^^
        No problem seen. Remark: the tracks are really short, momentum &
dedx resolution may be weak.

Negatives:
^^^^^^^^^^
        Same.


                                    Positives

 25 ++-**---------+--------------+-------------+--------------+------------++
 20 ++ **         +              +             +              +            ++
 15 ++***                                                                  ++
    | * *                                                                   |
 10 ++* *                                                                  ++
  5 ++* ***       +              +             +              +            ++
  0 ***---***************************************************************--++
    0            50             100           150            200           250
                                Number of points

                                    Negatives

   4 ++-$$---------+-------------+--------------+-------------+------------++
 3.3 ++ $$         +             +              +             +            ++
 2.5 ++ $$                                                                 ++
   2 ++$$$                                                                 ++
 1.1 ++$ $                                                                 ++
 0.5 ++$ $         +             +              +             +            ++
   0 $$$-$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$--++
     0            50            100            150           200           250
                                Number of points