Minutes of BRAHMS Analysis meeting Friday 31 July 2009 ======================================================= Present: Flemming, Kris, Michael and Selemon (Pawel had technical problems connnecting) Since our regular phone bridge reservation had expired we used EVO. Flemming will book a new phone bridge for next week. Michael went first. Agenda & Slides at http://indico.cern.ch/conferenceDisplay.py?confId=65359 09:30 Brief Update on CuCu_at_200 GeV Selemon Bekele 09:50 d/p paper Michael Murray 10:10 p/pi draft Pawel: (Postponed to next week but please see paper indico d/p paper: Michael ================== Casper has produced new figures for the paper. A few unreliable points at high Pt were dropped and the phase space density is now plotted as a function of m_T. A bug was fixed at y=3 where the phase density was a factor 3 too high. The phase density at y=0 and y=1 is now very consistent with the chemical potential we deduce from fits to k,pi,p spectra. Michael has done a literature search and will add a new section on the importance of flow. Ian, Joe and Dieter have been suggested as the paper committee. Todo>> Decide which Journal to aim for. Selemon: Brief Update on CuCu_at_200 GeV ===================================== He is using Kris's pp data as a reference for R_AA. At y=0 his R_AA is consistent with PHENIX. At y=3 he seems to have a mass ordering of R_AA. To calculate dN/dy he has used blast wave function. He didn't like the fact that the function integrated over the whole rapidity range +- infinity. This seems unreasonable at forward rapidity. He changed this to reduce the rapidity range that he integrates over. For the narrowist range, delta Eta=0.4, he this does not seem to work very well but once he gets delta Eta=0.8, 2 or 2.8 he seems to be fine. He asked for lambda corrections and then there was a useful discussion about our sensitivity to this problem. He will send a draft paper to Steve and Michael next week. Todo>> For the d/p paper we should include some discussion on this sensitivity, since it certainly effects our slopes. =============== Submitted by Michael Murray ============================ _______________________________________________ Brahms-l mailing list Brahms-l_at_lists.bnl.gov https://lists.bnl.gov/mailman/listinfo/brahms-lReceived on Fri Jul 31 2009 - 15:43:11 EDT
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