Higher Moments of Net Proton Multiplicity Distributions at RHIC

MM Aggarwal, Essam Elhalhuli, Peter Jones, John Nelson, Lee Barnby

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297 Citations (Scopus)


200 GeV corresponding to baryon chemical potentials (mu(B)) between 200 and 20 MeV. Our measurements of the products kappa sigma(2) and S sigma, which can be related to theoretical calculations sensitive to baryon number susceptibilities and long-range correlations, are constant as functions of collision centrality. We compare these products with results from lattice QCD and various models without a critical point and study the root s(NN) dependence of kappa sigma(2). From the measurements at the three beam energies, we find no evidence for a critical point in the QCD phase diagram for mu(B) below 200 MeV.
Original languageEnglish
JournalPhysical Review Letters
Issue number2
Publication statusPublished - 1 Jul 2010


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