Effects of Kaluza-Klein Excitations on gμ-2
Pran Nath, Masahiro Yamaguchi
Abstract
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 4D 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 eνeνμ without suppression of their effects on gμ-2 is discussed.
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