Rare B decays in a single Universal Extra Dimension scenario

Abstract

Exclusive rare $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$, $B\to K^{(\ast )}\nu \bar{\nu }$ and $B\to K^{\ast }\gamma$ 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 $B\to K^{\ast }\gamma$.

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

References in corpus (26)

• Weak Decays Beyond Leading Logarithms
• Bounds on Universal Extra Dimensions
• Hierarchies without Symmetries from Extra Dimensions
• Extra Spacetime Dimensions and Unification
• New Results on B->pi, K, eta Decay Formfactors from Light-Cone Sum Rules
• Photonic penguins at two loops and m_t-dependence of BR[ B -> X_s l^+ l^-]
• The Rare Decays $K\to \pi \nu \bar{\nu }$, $B\to X\nu \bar{\nu }$ and $B\to l^{+}{l}^{-}$ -- An Update
• Phenomenology of non-standard Z couplings in exclusive semileptonic b -> s transitions
• The Impact of Universal Extra Dimensions on the Unitarity Triangle and Rare K and B Decays
• Present Status of Inclusive Rare B Decays
• Measurement of the B -> Xs l+ l- branching fraction with a sum over exclusive modes
• Improved Measurement of the Electroweak Penguin Process B->Xsll
• Complete NNLO QCD Analysis of B -> X_s l^+ l^- and Higher Order Electroweak Effects
• The Impact of Universal Extra Dimensions on B -> X_s gamma, B -> X_s gluon, B -> X_s mu^+ mu^-, K_L -> pi^0 e^ +e^-, and epsilon'/epsilon
• Universal Extra Dimensions and b -> s gamma
• QCD Sum Rule Analysis of the Decays $B\to K{\ell }^{+}{\ell }^{-}$ and $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$
• Two-loop virtual corrections to B --> X_s l^+ l^- in the standard model
• The rare decay B --> X_s l^+ l^- to NNLL precision for arbitrary dilepton invariant mass
• Short Distance Coefficients and the Vanishing of the Lepton Asymmetry in $B\to V{\ell }^{+}{\ell }^{-}$
• Measurement of the B --> K^* gamma Branching Fractions and Asymmetries
• Measurement of Forward-Backward Asymmetry and Wilson Coefficients in $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$
• Exclusive $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$, $B\to K^{(\ast )}\nu \bar{\nu }$ and $B\to K^{\ast }\gamma$ transitions in a scenario with a single Universal Extra Dimension
• Forward--Backward Asymmetry in B -> X_s l^+ l^- at the NNLL Level
• NNLL corrections to the angular distribution and to the forward-backward asymmetries in b -> X_s l+ l-
• Rare B \to K^{(*)} ν\barνDecays at B Factories
• A search for the decay $B^{+}\to K^{+}\nu \bar{\nu }$

Cited by in corpus (6)

• Rare dileptonic decays of Λ_b in a quark model
• Lepton polarization asymmetries for FCNC decays of the ${\Lambda }_b$ baryon
• Constraint on compactification scale via recently observed baryonic ${\Lambda }_b\to \Lambda {\ell }^{+}{\ell }^{-}$ channel and analysis of the ${\Sigma }_b\to \Sigma {\ell }^{+}{\ell }^{-}$ transition in SM and UED scenario
• B to strange tensor meson transition in a model with one universal extra dimension
• Systematic analysis of the $B_s\to f_0{\ell }^{+}{\ell }^{-}$ in the universal extra dimension
• Analysis of the radiative ${\Lambda }_b\to \Lambda \gamma$ transition in SM and scenarios with one or two universal extra dimensions