Noncommutativity, Extra Dimensions, and Power Law Running in the Infrared

Details Noncommutativity, Extra Dimensions, and Power Law Running in the Infrared Noncommutativity, Extra Dimensions, and Power Law Running in the Infrared

2005-11-16

arxiv.org/abs/hep-ph/0511197v1

JHEP 0601 (2006) 105

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 2 figures and 1 table

Scientific paper

10.1088/1126-6708/2006/01/105

We investigate the running gauge couplings of U(N) noncommutative gauge theories with compact extra dimensions. Power law running of the trace-U(1) gauge coupling in the ultraviolet is communicated to the infrared by ultraviolet/infrared mixing, whereas the SU(N) factors run exactly as in the commutative theory. This results in theories where the experimentally excluded trace-U(1) factors decouple with a power law running of the momentum in the extreme infrared, effectively hiding them from detection.

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