As Hiro said all the timing detectors are now relative to the BB to make an overall consistent picture, and it ws the BB counters that were change by 8 nes.In addition some trigger timeswere adjusted late dAu/pp run to make different triggers aligh at same time.This is mainlyimportant for the residual cuts in TD1 and inel flemming Pawel Staszel said: > > > Hironori Ito wrote: > >> Hello. I thought I remind everyone that timings for dAu and pp are >> different by about 8ns (due to an addition of 8ns cable to start >> time). Therefore, even if you calibrate the last run of dAu, you MUST >> also calibrate the first run of pp (for at least time offset). >> Hiro > > Yes, that was my observation that times in Td1 are different for d+Au > and p+p by about 8ns. > So, we need time offset calibration for the beginning of the pp run > (~8704) (the existed time offset calibration is for 8650 which is d+Au) > Cheers > Pawel. > >> >> Bjorn H Samset wrote: >> >>> Hi all. >>> >>> As promised eariler, I've looked at the TD1 calibrations for 2003 >>> data. It >>> seems that I was overly negative - only the start of useful dAu runs >>> had bad calibrations, while from 8485 and on the calibs from march >>> seem OK. I've therefore committed ADC gain, time offsets and delta >>> delay calibs for >>> tun 8307 (the latter was indeed needed...) >>> >>> I'm running the global tracking and dsts for the affected runs now, >>> but a >>> prelim reco of run 8307 at least looks fine (also, the double-band in >>> H1 PID is gone as hoped). >>> >>> So - with that I think we're ready for some new H1/H2 calibs where >>> needed >>> :-) >>> >>> -- >>> Bjorn H. Samset Phone: 22856465/92051998 >>> PhD student, heavy ion physics Adr: Schouterrassen 6 >>> Inst. of Physics, University of Oslo 0573 Oslo >>> \|/ >>> ----------------------------> -*- <----------------------------- >>> /|\ >>> >>> _______________________________________________ >>> Brahms-dev-l mailing list >>> Brahms-dev-l@lists.bnl.gov >>> http://lists.bnl.gov/mailman/listinfo/brahms-dev-l >>> >>> >> >> >> >> _______________________________________________ >> Brahms-dev-l mailing list >> Brahms-dev-l@lists.bnl.gov >> http://lists.bnl.gov/mailman/listinfo/brahms-dev-l >> > > > > _______________________________________________ > Brahms-dev-l mailing list > Brahms-dev-l@lists.bnl.gov > http://lists.bnl.gov/mailman/listinfo/brahms-dev-l -- Flemming Videbaek Brookhaven National Laboratory Physics Department tlf 631-344-4106 fax 631-344-1334 e-mail: videbaek@bnl.gov _______________________________________________ Brahms-dev-l mailing list Brahms-dev-l@lists.bnl.gov http://lists.bnl.gov/mailman/listinfo/brahms-dev-lReceived on Thu Nov 20 12:10:43 2003
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