From: Flemming Videbaek (videbaek@sgs1.hirg.bnl.gov)
Date: Tue Sep 09 2003 - 08:41:19 EDT
FYI ------------------------------------------------------ Flemming Videbaek Physics Department Brookhaven National Laboratory tlf: 631-344-4106 fax 631-344-1334 e-mail: videbaek@bnl.gov ----- Original Message ----- From: "Timothy Hallman" <hallman@bnl.gov> To: <tkirk@bnl.gov>; <zajc@nevis.columbia.edu>; <videbaek@bnl.gov>; <gunther.roland@cern.ch> Cc: <mdbaker@bnl.gov>; <hallman@bnl.gov>; <busza@mit.edu> Sent: Monday, September 08, 2003 11:26 PM Subject: Release of new STAR Paper | Dear Tom, Bill, Flemming, and Gunther, | | I am pleased to announce STAR's intention to submit a new | paper on "Pion, kaon, proton and anti-proton transverse | momentum distributions from p+p and d+Au collisions at | roots_NN = 200 GeV" to Physical Review Letters one week | from today. The title and abstract for the paper are enclosed. | | Sincerely, | | Tim | | | "Pion, kaon, proton and anti-proton transverse | momentum distributions from p+p and d+Au collisions at | roots_NN = 200 GeV" | | Identified mid-rapidity particle spectra of pi+/- , K +/- , | and p(pbar) from 200 GeV p+p and d+Au collisions are reported. | A time-of-flight detector based on multi-gap resistive plate | chamber technology is used for particle identification. The | particle dependence of the Cronin effect is observed to be | significantly smaller than that at lower energies. The ratio | of the nuclear modification factor (RdAu) between (pbar + p) | and charged hadrons (h) in the transverse momentum range | 1.2 < pT < 3.0 GeV/c is measured to be 1.19 +/- 0.05(stat) | +/- 0.03(syst) in minimum-bias collisions and shows little | centrality dependence. The yield ratio of (p + pbar)/h in | minimum-bias d+Au collisions is found to be a factor of 2 lower | than that in Au+Au collisions, indicating that the Cronin | effect alone is not enough to account for the relative baryon | enhancement observed in heavy ion collisions at RHIC. | | |
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