Bounding Noncommutative QCD
Abstract
Jurco, Moller, Schraml, Schupp, and Wess have shown how to construct noncommutative SU(N) gauge theories from a consistency relation. Within this framework, we present the Feynman rules for noncommutative QCD and compute explicitly the most dangerous Lorentz-violating operator generated through radiative corrections. We find that interesting effects appear at the one-loop level, in contrast to conventional noncommutative U(N) gauge theories, leading to a stringent bound. Our results are consistent with others appearing recently in the literature that suggest collider limits are not competitive with low-energy tests of Lorentz violation for bounding the scale of spacetime noncommutativity.
Cite
@article{arxiv.hep-ph/0107291,
title = {Bounding Noncommutative QCD},
author = {Carl E. Carlson and Christopher D. Carone and Richard F. Lebed},
journal= {arXiv preprint arXiv:hep-ph/0107291},
year = {2014}
}
Comments
13 pages RevTeX, 2 eps figures, comment on gauge invariance and one reference added