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

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

2001-09-26

arxiv.org/abs/hep-ph/0109253v1

Phys.Lett. B545 (2002) 298-306

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 2 figures, 1 table

Scientific paper

10.1016/S0370-2693(02)02630-8

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 $\theta$-direction likely creating favorable conditions for the subsequent generation of P-odd bubbles.

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