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Fluctuations of charge separation perpendicular to the event plane and local parity violation in sqrt(sNN)=200 GeV Au+Au collisions at RHIC

Abstract : Recent experimental results from the STAR collaboration suggest event-by-event charge separation fluctuations perpendicular to the event plane in non-central heavy-ion collisions. Here we present the correlator previously used split into its two component parts to reveal correlations parallel and perpendicular to the event plane. The results are from a high statistics 200 GeV Au+Au collisions data set collected by the STAR experiment at RHIC. We explicitly count units of charge separation from which we find clear evidence for more charge separation fluctuations perpendicular than parallel to the event plane. We also employ a modified correlator to study the possible P-even background in same and opposite charge correlations.
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http://hal.in2p3.fr/in2p3-00807103
Contributor : Sylvie Flores <>
Submitted on : Wednesday, April 3, 2013 - 7:18:46 AM
Last modification on : Thursday, February 7, 2019 - 2:57:48 PM

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L. Adamczyk, W. Borowski, S. Kabana. Fluctuations of charge separation perpendicular to the event plane and local parity violation in sqrt(sNN)=200 GeV Au+Au collisions at RHIC. Physical Review C, American Physical Society, 2013, 88, pp.064911. ⟨10.1103/PhysRevC.88.064911⟩. ⟨in2p3-00807103⟩

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