Claus, I think some slewing is needed otherwise the zdc vertex is only good to about 10 cm, which is not very good. My recommendation will be for Andrei to checkin slewings + vertex info for run 5383 and up and process those for globaltracks and give Andrei one or two more days to figure out the cal for the lower runs. Flemming ------------------------------------------------------ Flemming Videbaek Physics Department Brookhaven National Laboratory tlf: 631-344-4106 fax 631-344-1334 e-mail: videbaek@bnl.gov ----- Original Message ----- From: "Claus O. E. Jorgensen" <ekman@nbi.dk> To: <brahms-dev-l@bnl.gov> Sent: Tuesday, June 18, 2002 5:09 PM Subject: Re: your mail > > Hi Andrei > > Did you read Flemmings mail about the missing adc1 signal in the earlier > runs? Maybe it has something to do with that? Anyway, I dont think it's > very important to get the best zdc vtx achievable, if we just can get a > reasonalbe one to check the consistency with the bb counters. Maybe it's > not even necessary with slewing, have you checked how it looks without? > Is it possible to turn it off in the rdo module? > > Claus > > +-------------------------------------------------------------+ > | Claus Jørgensen | > | Cand. Scient. Phone : (+45) 33 32 49 49 | > | Cell : (+45) 27 28 49 49 | > | Niels Bohr Institute, Ta-2, Office : (+45) 35 32 53 07 | > | Blegdamsvej 17, DK-2100, E-mail : ekman@nbi.dk | > | University of Copenhagen Home : www.nbi.dk/~ekman/ | > +-------------------------------------------------------------+ > > On Tue, 18 Jun 2002, Andrey Makeev wrote: > > > Hi, > > > > there is some delay with calibraions for > > runs 4640, 4713, 5361-5368, since I have > > problems with slew-correction: > > > > for some reason in my BrZdcSlewCalModule.cxx > > code when I do fit of the profile hist with a > > specified fitting range (option "R" in Fit() method), > > for some reason ROOT? just ignores it and makes > > fit in the arbitrary range... > > > > Have anybody had something like this? > > > > Andrei. > > > > > > > > >
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