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Muon anomalous magnetic moment and penguin loops in warped extra dimensions

M. Beneke

Physik Department T31, James-Franck-Straße 1,Technische Universität München, 85748 Garching, Germany

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P. Moch

Physik Department T31, James-Franck-Straße 1,Technische Universität München, 85748 Garching, Germany

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, and

J. Rohrwild

Rudolf Peierls Centre for Theoretical Physics, University of Oxford,1 Keble Road, Oxford OX1 3NP, UK

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https://doi.org/10.1142/S0217751X14440114Cited by:7 (Source: Crossref)

Abstract

We describe the computation of the one-loop muon anomalous magnetic moment and radiative penguin transitions in the minimal and custodially protected Randall–Sundrum model. A fully five-dimensional (5D) framework is employed to match the 5D theory onto the Standard Model extended by dimension-six operators. The additional contribution to the anomalous magnetic moment from the gauge-boson exchange contributions is

where the first (second) number refers to the minimal (custodially-protected) model. Here 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≈2.35T. We also determine the Higgs-exchange contribution, which depends on the 5D Yukawa structure and the precise interpretation of the localization of the Higgs field near or at the TeV brane.

Keywords:

PACS: 12.60.-i, 13.40.Em

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