One Loop Renormalization of Spontaneously Broken U(2) Gauge Theory on Noncommutative Spacetime

Abstract

We examine the renormalizability problem of spontaneously broken non-Abelian gauge theory on noncommutative spacetime. We show by an explicit analysis of the U(2) case that ultraviolet divergences can be removed at one loop level with the same limited number of renormalization constants as required on commutative spacetime. We thus push forward the efforts towards constructing realistic models of gauge interactions on noncommutative spacetime.

35 pages, figures using axodraw; v2: expanded discussion in the final section, additional refs added and typos fixed

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