B → K^* ℓ⁺ ℓ^- as a probe of Universal Extra Dimensions

2007/10/10 by Ferrandes, Rossella
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.0710.2040

Abstract

We study some rare B decays induced by b → s transition within the Standard Model and in the Appelquist-Cheng-Dobrescu model, which is a New Physics scenario with a single universal extra dimension. In particular, we discuss the dependence on the radius R of the compactified extra-dimension of the branching ratio, the forward-backward asymmetry and the K^* helicity distributions for the decay modes B → K^* ℓ⁺ ℓ^-, with ℓ^-=e^-,μ^-, and the tau polarization asymmetries for the mode B → K^* τ⁺ τ^-.

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