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Anomalous chirality fluctuations in the initial stage of heavy ion collisions and parity odd bubbles

D. Kharzeev·A. Krasnitz·R. Venugopalan
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Abstract

We compute numerically the topological charge distribution in the initial stage of a high energy heavy ion collision. This charge distribution is generated by Chern-Simons number fluctuations associated with the dynamics of strong classical fields in the initial state. The distribution is found to be quite narrow at RHIC and LHC energies reflecting a small value of the topological susceptibility. Thus the effective potential of classical fields is shallow in the $θ$-direction likely creating favorable conditions for the subsequent generation of P-odd bubbles.

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D. Kharzeev, A. Krasnitz, R. Venugopalan. 2001-09-26. Anomalous chirality fluctuations in the initial stage of heavy ion collisions and parity odd bubbles. https://doi.org/10.1016/s0370-2693(02)02630-8

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