Rare decays $B\to X_s{l}^{+}{l}^{-}$ and $B\to K^{(\ast )}{l}^{+}{l}^{-}$ in SM and beyond

Abstract

After a brief review of the inclusive and exclusive rare semileptonic decays of B mesons in the standard model (SM), an overview of recent theoretical developments in this field is given. New physics effects on various observables such as branching ratio, backward-forward asymmetry, polarization of lepton and CP violation in the decays are anlyzed in models beyond SM (supersymmetric models and two Higgs doublet models).

6 pages, invited talk given at the Fourth International Conference on Hyperons, Charm and Beauty Hadrons, June 27-30, 2000, Valencia, Spain, to appear in the Proceedings of the Conference, typo corrected

References in corpus (4)

• Higher Twist Distribution Amplitudes of Vector Mesons in QCD: Twist-4 Distributions and Meson Mass Corrections
• B -> Xs l+ l- decays in supersymmetry
• Angular Distribution and CP Asymmetries in the Decays B->K^-pi^+e^-e^+ and B->pi^-pi^+e^-e^+
• CP Violation in rare semileptonic B decays and supersymmetry

Cited by in corpus (11)

• Rare dileptonic decays of Λ_b in a quark model
• B_s -> mu^+ mu^- and B -> X_s mu^+ mu^- in MSSM
• Exclusive semileptonic decays of ${\Lambda }_b\to \Lambda l^{+}{l}^{-}$ in supersymmetric theories
• $B\to K_0^{\ast }(1430)l^{+}{l}^{-}$ decays in supersymmetric theories
• Exclusive Semileptonic Rare Decays $B\to K^{(\ast )}{l}^{+}{l}^{-}$ in a SUSY SO(10) GUT
• B\to πϕin SM and MSSM
• B --> K^* τ^+ τ^- decay in the general two Higgs doublet model including the neutral Higgs boson effects
• Lepton polarization asymmetries for FCNC decays of the ${\Lambda }_b$ baryon
• $B\to {\tau }^{+}{\tau }^{-}\gamma$ decay in the general two Higgs doublet model including the neutral Higgs boson effects
• Forward-backward Asymmetry and Branching Ratio of $B \rar K_1 \ell^+ \ell^-$ Transition in Supersymmetric Models
• A comparative study on $B \rar K^\ast \ell^+ \ell^-$ and $B \rar K_0^\ast (1430) \ell^+ \ell^-$ decays in the Supersymmetric Models