Bounding Noncommutative QCD

Details Bounding Noncommutative QCD Bounding Noncommutative QCD

2001-07-27

arxiv.org/abs/hep-ph/0107291v2

Phys.Lett. B518 (2001) 201-206

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages RevTeX, 2 eps figures, comment on gauge invariance and one reference added

Scientific paper

10.1016/S0370-2693(01)01045-0

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.

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