Charge separation induced by P-odd bubbles in QCD matter

Details Charge separation induced by P-odd bubbles in QCD matter Charge separation induced by P-odd bubbles in QCD matter

2007-06-07

arxiv.org/abs/0706.1026v2

Nucl.Phys.A797:67-79,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 1 figure; extended discussion of cosmological and astrophysical implications; final version to appear in Nuclear Phys

Scientific paper

10.1016/j.nuclphysa.2007.10.001

We examine the recent suggestion that P- and CP-odd effects in QCD matter can induce electric charge asymmetry with respect to reaction plane in relativistic heavy ion collisions. General arguments are given which confirm that the angular momentum of QCD matter in the presence of non-zero topological charge should induce an electric field aligned along the axis of the angular momentum. A simple formula relating the magnitude of charge asymmetry to the angular momentum and topological charge is derived. The expected asymmetry is amenable to experimental observation at RHIC and LHC; we discuss the recent preliminary STAR result in light of our findings.

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