I have made a check dE/dx for P11ic_calib/AuAu19_production sample:

1. dE/dx resolution looks reasonable

2. The systematical shift in dE/dx versus track length in TPC used for dE/dx calculation is pretty big (up to 3% i.e. 40% from dE/dx resolution).

3. In dE/dx distribution versus momentum any extra bands are not seen. This does mean that in the test sample there is no problem with Tpc Anode Voltages.

.