Dear Collaborator, Based on discussion and information received so far it seems that we should redo the following Missing 4 deg A/B 1723 ~ 1M trigger 6 ( + trigger 2) B 1219 ~ 1M trigger 6 (+trigger 2) ; Add same amount of A pol These runs were taken in a period 1/12-1/15 where the alcohol for DC was not flowing, and the Vdrift calibration will be diffiuclt. I suggest these will taken tomorow during the day time, and steady continued running over the weekend with the 8 deg full field. The second point is the polarity of FS at 8 deg should be reversed by now we have ~ 4M triggers for A3450 an 2.2M for B3450. Today beam development for 31+21 GeV looks reasonable succesfull. Some data have already been collcted indicated that a) The zdc's would not be effecient for central collisions b) the combinations of BB and/or ZDC will give a trigger reasobale effecient over the whole centrality range. c) rates with 6 bunches are still very low ~6 zc/sec (top) whereas one would have hope for ~ 20-30/sec. Hopefully additional tuning can improve this regards Flemming ---------------------------------------------------------------- Flemming Videbaek Physics Department Brookhaven National Laboratory e-mail: videbaek@bnl.gov phone: 631-344-4106 _______________________________________________ Brahms-l mailing list Brahms-l@lists.bnl.gov http://lists.bnl.gov/mailman/listinfo/brahms-lReceived on Thu Mar 18 18:39:33 2004
This archive was generated by hypermail 2.1.8 : Thu Mar 18 2004 - 18:39:59 EST