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

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

2004-06-10

arxiv.org/abs/hep-ph/0406125v2

Phys.Lett.B633:260-264,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, revtex; a slightly extended version to appear in Physics Letters B

Scientific paper

10.1016/j.physletb.2005.11.075

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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