K/ pi Fluctuations at Relativistic Energies
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; Milner, Richard G; Hoffman, Alan Michael; ... Show more Show less
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Alternative title
K/π Fluctuations at Relativistic Energies
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Show full item recordAbstract
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.
Date issued
2009-08Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
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
ISSN
0031-9007