Year: 2010
Type: erratum
Abstract: We derive an electric current density ${\mathbit{j}}_{\mathrm{em}}$ in the presence of a magnetic field $\mathbit{B}$ and a chiral chemical potential ${\ensuremath{\mu}}_{5}$. We show that ${\mathbit{j}}_{\mathrm{em}}$ has, not only the anomaly-induced term $\ensuremath{\propto}{\ensuremath{\mu}}_{5}\mathbit{B}$ (i.e. chiral magnetic effect), but also a nonanomalous correction which comes from interaction effects and is expressed in terms of the susceptibility. We find the correction characteristically dependent on the number of quark flavors. The numerically estimated correction turns out to be a minor effect on heavy-ion collisions but can be tested by the lattice-QCD simulation.
Authors: Kenji Fukushima, Marco Ruggieri
Institutions: Kyoto University, Yukawa Institute for Theoretical Physics
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2162095368