Radiative Penguin Decays at e^+ e^- Colliders

Abstract

In this review, the most recent results of the radiative decays B -> X_s gamma, B -> K^{(*)} l^+ l^-$ and B -> pi/eta l^+ l^- at e^+e^- colliders are discussed. The new, most precise CP asymmetry measurements in B -> X_s gamma from BABAR are presented together with branching fractions and photon energy moments. For B -> K^{(*)} l^+ l^- modes, B factory results on partial branching fractions, rate asymmetries and angular observables are combined with measurements from CDF and the LHC experiments. The first branching fraction upper limits for B -> eta l^+ l^- are shown along with updated upper limits of B -> pi l^+ l^- branching fractions.

20 pages, 12 figures

References in corpus (10)

• Angular Distributions of B -> K ll Decays
• General Analysis of B -> K^(*) l^+ l^- Decays at Low Recoil
• Differential branching fraction and angular analysis of the $B^{+}\to K^{+}{\mu }^{+}{\mu }^{-}$ decay
• Long-Distance Dominance of the CP Asymmetry in B->X_{s,d}+gamma Decays
• Measurement of the isospin asymmetry in $B\to K^{(\ast )}{\mu }^{+}{\mu }^{-}$ decays
• Measurement of the CP asymmetry in B0 -> K*0 mu+ mu- decays
• The rare decays $B_u^{+}\to {\pi }^{+}{\ell }^{+}{\ell }^{-}$, ${\rho }^{+}{\ell }^{+}{\ell }^{-}$ and $B_d^0\to {\ell }^{+}{\ell }^{-}$ in the R-parity violating supersymmetry
• Search for $B\to \pi {\ell }^{+}{\ell }^{-}$ Decays at Belle
• First evidence for the annihilation decay mode $B^{+}\to D_s^{+}\varphi$
• Anti-B --> X(s) gamma: Standard Model and Beyond