Noncommutative magnetic moment of charged particles
High Energy Physics - Theory
2011-11-01 v2
Abstract
It has been argued, that in noncommutative field theories sizes of physical objects cannot be taken smaller than an elementary length related to noncommutativity parameters. By gauge-covariantly extending field equations of noncommutative U(1)_*-theory to the presence of external sources, we find electric and magnetic fields produces by an extended charge. We find that such a charge, apart from being an ordinary electric monopole, is also a magnetic dipole. By writing off the existing experimental clearance in the value of the lepton magnetic moments for the present effect, we get the bound on noncommutativity at the level of 10^4 TeV.
Keywords
Cite
@article{arxiv.1104.1478,
title = {Noncommutative magnetic moment of charged particles},
author = {T. C. Adorno and D. M. Gitman and A. E. Shabad and D. V. Vassilevich},
journal= {arXiv preprint arXiv:1104.1478},
year = {2011}
}
Comments
9 pages, revtex; v2: replaced to match the published version