K/π fluctuations at relativistic energies

Translated title of the contribution: K/π fluctuations at relativistic energies

B.I. Abelev, R.J.M. Snellings, M. van Leeuwen, M.J. Russcher, T. Peitzmann, A. Mischke, F. Benedosso, E Braidot, M.A.J. Botje

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

We report K/π fluctuations from Au+Au collisions at √sNN=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 √sNN=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.
Translated title of the contributionK/π fluctuations at relativistic energies
Original languageUndefined/Unknown
Pages (from-to)092301/1-092301/6
Number of pages6
JournalPhysical review letters
Volume103
Issue number9
Publication statusPublished - 2009

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