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- Title
The muon anomalous magnetic moment in the Randall-Sundrum model.
- Authors
Beneke, M.; Dey, P.; Rohrwild, J.
- 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 is $ \varDelta {a_{\mu }}\approx 8.8 \cdot {10^{-11 }}\times {{\left( {{{{1\;\mathrm{TeV}}} \left/ {T} \right.}} \right)}^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 by M KK ≈ 2.5 T . 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.
- Publication
Journal of High Energy Physics, 2013, Vol 2013, Issue 8, p1
- ISSN
1126-6708
- Publication type
Article
- DOI
10.1007/JHEP08(2013)010