Hi Djam, This looks good, but something is a bit strange. You claim that you select tracks from 0-2GeV/c and that you require C1. Since the C1 threshold is roughly 3, I don't understand how you get any tracks for 20degrees. I guess also the 12 degree tracks are from 3-4GeV/c? Anyway, that is not too serious a point, I'd just like some clarification. When were the calibrations committed to the DB, and from what run number? Or, in other words, how many dsts will I have to redo? Cheers, Ian > -----Original Message----- > From: owner-brahms-dev-l@bnl.gov [mailto:owner-brahms-dev-l@bnl.gov]On > Behalf Of Djamel Ouerdane > Sent: 27. juni 2002 18:52 > To: brahms-dev-l@bnl.gov > Subject: FFS tof res. > > > Hi, > > I've tested the FFS PID with the newest slewing corrections. > I've evaluated the tof resolution for the 12 and 20 deg. settings. > > The results can be seen here: > > http://www.nbi.dk/~ouerdane/FfsTofResAt20d.gif > http://www.nbi.dk/~ouerdane/FfsTofResAt12d.gif > > I've selected good status tracks, correlated with the BB vertex and > required that the C1 signal is above 1 (rough pion selection) > I then selected small momentum bins (2GeV). > > I think it's pretty good :) > > 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 > > >
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