Dear Ian and Djamel, A nice work! As you mentioned, the clear "proton-like" band (in Fig5,6) which disappeared after the vertex requirement (in Fig8) in a negative particle favored data set is quite interesting. I'm very curious about positive particle favored data sets. I would naively expect more background protons accepted as well as real protons in the data set. Do you see double proton bands in particle favored data sets or rather a wide proton band? With our tracking/PID resolution, if the overlap between the "real" proton band and the "proton-like" band is big, we might have more background proton contamination than "negligible" as we claim in the pbar paper. Regards, JH ----- Original Message ----- From: "Ian Bearden" <bearden@alf.nbi.dk> To: <brahms-l@bnl.gov> Sent: Sunday, July 08, 2001 11:20 AM Subject: BAN 35 > Dear Colleagues, > I have written a little analysis note showing the latest results for > FFS PID. This note tries to summarize some the fine work done by > Djamel Ouerdane over the past month or so. Please take a look, and if > you have questions or comments, let us know. The analysis note is #35 > and can be found in both postscript and pdf formats at > http://www.rhic.bnl.gov/brahms/WWW/private/AnNotes/Index.html > > > Best regards, > > Ian-------------------------------------------------------------------- > | I.G. Bearden | > | Niels Bohr Institute Tb 3 email: bearden@nbi.dk | > | Blegdamsvej 17 phone: (+45) 35 32 53 23 | > | København Ø FAX: (+45) 31 42 10 16 | > | Danmark | > ---------------------------------------------------------------------- >
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