From: Flemming Videbaek (videbaek@rcf.rhic.bnl.gov)
Date: Sat Jun 28 2003 - 20:45:37 EDT
FYI -------- Original Message -------- Subject: New STAR Paper on Multiplicity Fluctuations From: Hallman <hallman@bnl.gov> Date: Thu, June 26, 2003 6:28 pm To: tkirk@bnl.gov, zajc@nevis.columbia.edu, busza@mit.edu, videbaek@bnl.gov Dear Tom, Bill, Flemming, and Wit, I am pleased to announce STAR's intention to submit a new paper on "Multiplicity fluctuations in Au+Au collisions at roots_NN = 130 GeV" to Physical Review C one week from today. The title and abstract for the paper are enclosed. Sincerely, Tim "Multiplicity Fluctuations in Au+Au collisions at roots_NN = 130 GeV" We present the results of charged particle fluctuations measurements in Au+Au collisions at roots_NN = 130 GeV using the STAR Detector. Dynamical fluctuations measurements are presented for inclusive charged particle multiplicities as well as for identified charged pions, kaons, and protons. The net charge dynamical fluctuations are found to be large and negative providing clear evidence that positive and negative charged particle production is correlated within the pseudorapidity range investigated. Correlations are smaller than expected based on model-dependent predictions for a resonance gas or a quark-gluon gas which undergoes fast hadronization and freeze-out. Qualitative agreement is found with comparable scaled p+p measurements and a HIJING model calculation based on independent particle collisions, although a small deviation from the 1/N scaling dependence expected from this model is observed. -- Flemming Videbaek Brookhaven National Laboratory Physics Department tlf 631-344-4106 fax 631-344-1334 e-mail: videbaek@bnl.gov
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