Bounding noncommutative QCD

被引：179

作者：

Carlson, CE ^{[1
]}

Carone, CD

Lebed, RF

机构：

[1] Coll William & Mary, Dept Phys, Nucl & Particle Theory Grp, Williamsburg, VA 23187 USA

[2] Arizona State Univ, Dept Phys & Astron, Tempe, AZ 85287 USA

来源：

PHYSICS LETTERS B | 2001年 / 518卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(01)01045-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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. (C) 2001 Published by Elsevier Science B.V.

引用

页码：201 / 206

页数：6

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