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Sign of Kurtosis near the QCD Critical Point

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Title: Sign of Kurtosis near the QCD Critical Point
Author(s): Stephanov, M. A.
Abstract: We point out that the quartic cumulant (and kurtosis) of the order parameter fluctuations is universally negative when the critical point is approached on the crossover side of the phase separation line. As a consequence, the kurtosis of a fluctuating observable, such as, e.g., proton multiplicity, may become smaller than the value given by independent Poisson statistics. We discuss implications for the beam energy scan program at RHIC at BNL.
Issue Date: 2011-07
Publisher: American Physical Society
Citation Info: Stephanov, M. A. 2011. Sign of Kurtosis near the QCD Critical Point. Physical Review Letters, 107(5).DOI: 10.1103/PhysRevLett.107.052301
Type: Article
Description: Stephanov, M. A Sign of Kurtosis near the QCD Critical Point,volume 107, article 052301, 2011. © 2011 by the American Physical Society.
ISSN: 0031-9007
Date Available in INDIGO: 2012-03-06

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