Dresden 2013 – scientific programme
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T: Fachverband Teilchenphysik
T 16: Beyond the Standard Model (Theorie) 3
T 16.4: Talk
Tuesday, March 5, 2013, 17:30–17:45, WIL-A124
The muon anomalous magnetic moment in the Randall-Sundrum model — Martin Beneke, Paramita Dey, and •Jürgen Rohrwild — TU München, Physik Department T31, Garching, Deutschland
We present the complete calculation of the gauge contribution to 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 is
| Δ aµ≈ 8.8· 10−11 × (1 TeV/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 by MKK≈ 2.5 T. The result is robust against the variation of the bulk fermion masses and 5D Yukawa coupling.