Chiral Magnetic Effect in a Lattice Model
High Energy Physics - Phenomenology
2017-07-05 v1 High Energy Physics - Lattice
Abstract
We study analytically the one-loop contribution to the Chiral Magnetic Effect(CME) using lattice regularization with a Wilson fermion field. In the continuum limit, we find that the chiral magnetic current vanishes at nonzero temperature but emerges at zero temperature consistent with that found by Pauli-Villas regularization. For finite lattice size, however, the chiral magnetic current is nonvanishing at nonzero temperature. But the numerical vaule of the coefficient of CME current is very small compared with that extracted from the full QCD simulation for the same lattice parameters. The possibility of higher order corrections from QCD dynamics is also assessed.
Cite
@article{arxiv.1702.07980,
title = {Chiral Magnetic Effect in a Lattice Model},
author = {Bo Feng and De-fu Hou and Hui Liu and Hai-cang Ren and Ping-ping Wu and Yan Wu},
journal= {arXiv preprint arXiv:1702.07980},
year = {2017}
}
Comments
7 pages