Hi all, Remember, 1.5 years ago, a correction on the T2 track direction was applied. Indeed, one could see that the difference in X with T3 tracks, as a function of X, got worse as one got closer to one edge of the TPC. This option is on by default. I struggled half of the day to understand what was going on: about 1/10 of the FFS tracks could make it to TOF1 according to a standard histogram of the matching module, which I could not believe at all. I finally saw that the function BrFfsTrackingModule::UseT2Correction was enabled by default because it uses a file name as an argument, which is by default the one in the brat/share/params directory. To disable this option, you HAVE to write: BrFfsTrackingModule::UseT2Correction("") in your bratmain script if it's not yet done. I implemented that stuff more than 1 year ago, and with some distance, I think now that it's pure cr...p. We need to wipe out that stuff asap from brat. Djam -- Djamel Ouerdane ------------------------------------------o | Niels Bohr Institute | Home: | | Blegdamsvej 17, DK-2100 Ø | Jagtvej 141 2D, | | Fax: +45 35 32 50 16 | DK-2200 Copenhagen N | | Tel: +45 35 32 52 69 | +45 35 86 19 74 | | http://www.nbi.dk/~ouerdane | | ouerdane@nbi.dk | o---------------------------------------------------------o _______________________________________________ Brahms-dev-l mailing list Brahms-dev-l@lists.bnl.gov http://lists.bnl.gov/mailman/listinfo/brahms-dev-lReceived on Wed May 5 16:45:29 2004
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