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

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.

Note:

15 pages, 2 figures, 1 table Report-no: BNL-NT-01/24

11.15.Ha
12.38.Mh
05.20.Gg
05.40.+j
Anomaly
Lattice simulations
Sphalerons
scattering: heavy ion
gluon: production
field equations: sphaleron

References(80)

Figures(0)

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