K/ pi Fluctuations at Relativistic Energies
Name
Abelev-2009-K_pi Fluctuations at.pdf
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Author(s)
Sakuma, Tai
Leight, William Axel
Kocoloski, Adam Philip
Jones, Christopher LaDon
Corliss, Ross Cameron
Betancourt, Michael Joseph
Balewski, Jan T.
Surrow, Bernd
Walker, Matthew H
Redwine, Robert P
Alternative Title
K/π Fluctuations at Relativistic Energies
Date Issued
August 2009
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
STAR Collaboration et al. “K/ pi Fluctuations at Relativistic Energies.” Physical Review Letters 103.9 (2009): 092301. © 2009 The American Physical Society
Version
Final published version
Abstract
We report K/π fluctuations from Au+Au collisions at √[s[subscript NN]]=19.6, 62.4, 130, and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. K/π fluctuations in central collisions show little dependence on incident energy and are on the same order as those from NA49 at the Super Proton Synchrotron in central Pb+Pb collisions at √[s[subscript NN]=12.3 and 17.3 GeV. We report results for the collision centrality dependence of K/π fluctuations and results for charge-separated fluctuations. We observe that the K/π fluctuations scale with the charged particle multiplicity density.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.103.092301
