Dear all, in order to answer JH's question he sent out a few days ago, I start to wonder my reference spectrum got from PHENIX pion zero measurements. Since the pion zero measured starts at pt from 2 GeV/c, in principle it is not safe to extend to low pt range by using their fitting function. Recently STAR have published their pion spectra at midrapidity in p+p collisions. I used them to produce the RAA for pi^- and the results are located at www.ift.uib.no/~yin/RaaStar.gif So, it looks like that I should not use PHENIX pion zero measurement to extract the reference spectrum. I may have been cheated by the contructed reference spectrum since it describes our (pi^-+pi^+)/2 measurements well. Then I compared our measurements to STAR's, what I found that our pi^+ measurements is almost consistent with STAR's data if not corrected for the trigger inefficiency, but pi^- is much lower than STAR's measurement. I think I have to look at our pp data once more to see if I can get them right. Then I would like to ask where the newly produced bdst files are. Best regards, Zhongbao _______________________________________________ Brahms-l mailing list Brahms-l@lists.bnl.gov http://lists.bnl.gov/mailman/listinfo/brahms-lReceived on Tue Jul 5 20:43:48 2005
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