Effects of Kaluza-Klein excitations on gμ-2

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An analysis of the effects associated with the Kaluza-Klein excitations of the photon and of the W and Z bosons on gμ-2 for d number of extra dimensions with large radius compactifications is given. The Kaluza-Klein effects on gμ-2 are found to be very sensitive to the number of extra dimensions. For models where the quark-lepton generations live on the four-dimensional wall, it is shown that when the constraints from the Kaluza-Klein corrections to the Fermi constant are included, the effects of the Kaluza-Klein excitations to gμ-2 become too small to be observable. A model which evades Kaluza-Klein corrections to the muon decay μ→eν̄eνμ without suppression of their effects on gμ-2 is discussed.

Original languageEnglish
Article number116006
Pages (from-to)1-4
Number of pages4
JournalPhysical Review D
Issue number11
Publication statusPublished - 1999 Dec 1


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