Charge Fluctuations from the Chiral Magnetic Effect in Nuclear Collisions

Details Charge Fluctuations from the Chiral Magnetic Effect in Nuclear Collisions Charge Fluctuations from the Chiral Magnetic Effect in Nuclear Collisions

2010-09-06

arxiv.org/abs/1009.1053v2

Phys.Rev.C82:057902,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

A numerical error in an earlier version of the manuscript is corrected

Scientific paper

10.1103/PhysRevC.82.057902

We derive a nonlocal effective Lagrangian for the chiral magnetic effect. An electric field is generated by winding number fluctuations of the nonabelian gauge field in the presence of a strong magnetic field. We estimate the magnitude of charge asymmetry fluctuations with respect to the reaction plane induced by the chiral magnetic effect in relativistic heavy ion collisions to be less than $10^{-6}$, several orders of magnitude smaller than the signal observed in the STAR experiment.

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