The muon anomalous magnetic moment in the Randall-Sundrum model

Abstract

We calculate 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 from the model-independent gauge-boson exchange contributions Δa_μis 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 constitutes the first complete determination of the gauge-boson contribution to g-2 and is robust against the variation of the bulk fermion masses and 5D Yukawa coupling. We also determine the strongly model-parameter dependent effect of Higgs-exchange diagrams.

73 pages, 9 figures (V2: extended discussion of Higgs contributions and effects of wrong-chirality Higgs couplings added, typos corrected, references added, matches version published on JHEP)

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• The Flavor of the Composite Pseudo-Goldstone Higgs
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• 5D Perspective on Higgs Production at the Boundary of a Warped Extra Dimension
• Dipole operator constraints on composite Higgs models
• Higgs Production and Decay in Models of a Warped Extra Dimension with a Bulk Higgs
• The muon anomalous magnetic moment in the Randall-Sundrum model
• Flavour issues in warped custodial models: $B$ anomalies and rare $K$ decays
• SU(6) Gauge-Higgs Grand Unification: Minimal Viable Models and Flavor
• Impact of Warped Extra Dimensions on the Dipole Coefficients in $\mathbf{b}\to \mathbf{s\gamma }$ Transitions
• Muon anomalous magnetic moment and penguin loops in warped extra dimensions
• g-2 In the custodially protected RS model