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Parity violation in hot QCD: why it can happen, and how to look for it

D. Kharzeev
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Abstract

The arguments for the possibility of violation of P and CP symmetries of strong interactions at finite temperature are presented. A new way of observing these effects in heavy ion collisions is proposed -- it is shown that parity violation should manifest itself in the asymmetry between positive and negative pions with respect to the reaction plane. Basing on topological considerations, we derive a {\it lower} bound on the magnitude of the expected asymmetry, which may appear within the reach of the current and/or future heavy ion experiments.

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D. Kharzeev. 2005-11-30. Parity violation in hot QCD: why it can happen, and how to look for it. https://doi.org/10.1016/j.physletb.2005.11.075

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