Thursday, September 27, 2012

1209.5897 (M. Beneke et al.)

The muon anomalous magnetic moment in the Randall-Sundrum model    [PDF]

M. Beneke, P. Dey, J. Rohrwild
We present the first complete calculation of the anomalous magnetic moment of the muon in the minimal Randall-Sundrum model with standard model fields in five-dimensional (5D) warped space and a brane-localized Higgs. We use a fully 5D framework to compute the one-loop matching coefficients of the effective theory at the electroweak scale. The extra contribution to the anomalous magnetic moment \Delta a_{\mu} is approximately 8.8*10^-11*(1TeV/T)^2, where 1/T denotes the location of the TeV brane in conformal coordinates, and is related to the mass of the lowest gauge boson KK excitation, which is roughly 2.5T. The result is robust against the variation of the bulk fermion masses and 5D Yukawa coupling.
View original: http://arxiv.org/abs/1209.5897

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