Rare $B_s$ decays to $\eta$ and ${\eta }^{\prime }$ final states

Abstract

We study exclusive $B_s$ decays to final states with $\eta$ and ${\eta }^{\prime }$, induced by the rare $b\to s{\ell }^{+}{\ell }^{-}$ and $b\to s\nu \bar{\nu }$ transitions. Differential decay rates and total branching fractions are predicted in the Standard Model, adopting the flavour scheme for the description of the $\eta$-${\eta }^{\prime }$ mixing. We discuss the theoretical uncertainty related to the hadronic matrix elements. We also consider these decay modes in a new Physics scenario with a single universal extra dimension, studying the dependence of branching ratios and decay distributions on the compactification scale $R^{-1}$ of the extra dimension.

RevTeX, 10 pages, 4 figures

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Cited by in corpus (6)

• $B_s\to f_0(980)$ form factors and $B_s$ decays into $f_0(980)$
• Anomalous CP-Violation in B_s-Bbar_s Mixing Due to a Light Spin-One Particle
• Investigation of the ${\Lambda }_b\to \Lambda {\ell }^{+}{\ell }^{-}$ transition in universal extra dimension using form factors from full QCD
• Double-Lepton Polarization Asymmetries and Branching Ratio in $B \rar K_{0}^{*}(1430) l^+ l^- $ transition from Universal Extra Dimension Model
• Rare Semileptonic $B_s$ Decays to $\eta$ and ${\eta }^{\prime }$ mesons in QCD
• $B_s\to f_0(980)$ decays: Results from light-cone QCD Sum Rules