Rare B decays in a single Universal Extra Dimension scenario

Details Rare B decays in a single Universal Extra Dimension scenario Rare B decays in a single Universal Extra Dimension scenario

2006-10-17

arxiv.org/abs/hep-ph/0610208v1

Nucl.Phys.Proc.Suppl.174:185-188,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 4 pages, 4 figures. Talk given at "QCD 06", July 3-7 2006, Montpellier (France)

Scientific paper

10.1016/j.nuclphysbps.2007.08.12

Exclusive rare $B \to K^{(*)} \ell^+ \ell^-$, $B \to K^{(*)} \nu \bar \nu$ and $B \to K^* \gamma$ decays are studied within the Applequist-Cheng-Dobrescu model, an extension of the Standard Model in presence of universal extra dimensions. In the case of a single universal extra dimension compactified on a circle of radius R, we study the dependence of several observables on 1/R, and discuss whether the hadronic uncertainty due to the form factors obscures or not such a dependence. We find that, using present data, it is possible in many cases to put a sensible lower bound to 1/R, the most stringent one coming from $B \to K^* \gamma$.

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