Tayfun reported that he spent some time establishing an analysis draft. After establishing a set of preliminary cuts and preparing a database, he already determined a good run list. He, then applied a second set of cuts that rejected pions and selected events with hits in F1/F2, and generated NTuples that contain good events only. The remaining final step will be to do a good event by event clustering; see whether HV corrections will bring an improvement; apply geometrical corrections in phi, and output physics quantities.

Tamara had a deeper look at the asymmetry plots of the HEC2. She studied a good number of runs of a position scan and found that the shape of her version of the MPI asymmetry plots changes wildly depending on how the sharing between the modules is done. Unless there is something that hasn't been made clear in the MPI report, this plot does not appear to be a reliable measure of HV gap problems. Tamara has now plotted the ratios: E(hec1)/E(beam) and E(hec2)/E(beam) vs. x, and plotted these ratios for all the runs of an x-scan. These plots clearly show that there is a reduced response in HEC2.

Margret reported that she generated Geant Ntuples for Tamara with reduced response(0.5, 0.75 and 1) for a list of cells that Tamara had given to her. Tamara hasn't had time to look at them yet, but will do so soon.
In her attempt to understand the Geant testbeam package better, Margret found out where the individual leakage detectors are located. Her explanatory slides can be found in this pdf file .

The meeting came to a swift end at this point with a call to the group Christmas luncheon in town...