TY - JOUR
T1 - Bounding noncommutative QCD
AU - Carlson, Carl E.
AU - Carone, Christopher D.
AU - Lebed, Richard
N1 - Funding Information:
C.E.C. and C.D.C. thank the National Science Foundation for support under Grant No. PHY-9900657. In addition, C.D.C. thanks the Jeffress Memorial Trust for support under Grant No. J-532. R.F.L. thanks the Department of Energy for support under Grant No. DE-AC05-84ER40150. We thank P. Amore, A. Aranda, A. Armoni, A. Kostelecký, and N. Zobin for useful communications.
PY - 2001/10/11
Y1 - 2001/10/11
N2 - Jurčo, Möller, 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.
AB - Jurčo, Möller, 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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U2 - 10.1016/S0370-2693(01)01045-0
DO - 10.1016/S0370-2693(01)01045-0
M3 - Article
AN - SCOPUS:0035846129
SN - 0370-2693
VL - 518
SP - 201
EP - 206
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-2
ER -