Testing the Standard Model in $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$

Abstract

We study the potential of $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ decays as tests of the standard model. After discussing the reliability of theoretical predictions for the hadronic matrix elements involved, we examine the impact of different new physics scenarios on various observables. We show that the angular information in \bks together with the dilepton mass distribution can highly constrain new physics. This is particularly true in the large dilepton mass region, where reliable predictions for the hadronic matrix elements can be made with presently available data. We compare the Standard Model predictions with those of a Two-Higgs doublet model as well as TopColor models, all of which give distinct signals in this region.

22 pages, RevTeX, 8 uuencoded figures

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Cited by in corpus (79)

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• Measurement of Branching Fractions and Rate Asymmetries in the Rare Decays B -> K(*) l+ l-
• Measurements of branching fractions, rate asymmetries, and angular distributions in the rare decays B --> Kl+l- and B --> K*l+l-
• GIM Violation and New Dynamics of the Third Generation
• Next--to--Leading Order QCD corrections for the $B^0\overline{B^0}$--mixing with an extended Higgs sector
• QCD Sum Rule Analysis of the Decays $B\to K{\ell }^{+}{\ell }^{-}$ and $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$
• $D^0-\overline{D^0}$ Mixing and Rare Charm Decays
• Angular Distributions in the Decays B -> K* l+l-
• Rare exclusive semileptonic b -> s transitions in the Standard Model
• Angular Distribution and CP Asymmetries in the Decays B->K^-pi^+e^-e^+ and B->pi^-pi^+e^-e^+
• Short Distance Coefficients and the Vanishing of the Lepton Asymmetry in $B\to V{\ell }^{+}{\ell }^{-}$
• Top-Charm Associated Production in High Energy $e^{+}{e}^{-}$ Collisions
• First limit on inclusive $B\to X_s\nu \bar{\nu }$ decay and constraints on new physics
• Observation of $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$
• Exclusive semileptonic rare decays $B-{>}_{(}$K,K^*) \ell^+ \ell^- in supersymmetric theories
• Rare B -> K^* l^+ l^- Decay in Light Cone QCD
• Evidence for the Rare Decay B -> K*ll and Measurement of the B -> Kll Branching Fraction
• Lepton Polarization Asymmetry in $B\to K^{(\ast )}{l}^{+}{l}^{-}$
• Measurement of the Electroweak Penguin Process B --> X(s) l+ l-
• Observation of $B\to \varphi K$ and $B\to \varphi K^{\ast }$
• Measurement of Angular Asymmetries in the Decays B->K*l+l-
• $B\to K^{\ast }{l}^{+}{l}^{-}$, $K{l}^{+}{l}^{-}$ decays in a family non-universal $Z^{\prime }$ model
• Search for the Flavor-Changing Neutral Current Decays B^+ -> mu^+ mu^- K^+ and B^0 -> mu^+ mu^-K^{*0}
• Exclusive (Lambda_b -> Lambda l^+ l^-) decay beyond standard model
• Study of $B_s\to (\eta ,{\eta }^{\prime },\varphi )\ell \bar{\ell }$ Decays
• General analysis of lepton polarizations in rare B -> K^* l^+ l^- decay beyond the standard model
• Search for Inclusive $b\to sl^{+]l^{-}$
• Exclusive B -> pi e^+ e^- and B -> rho e^+ e^-
• Light cone QCD sum rule analysis of B -> K l(+) l(-) decay
• Model independent analysis of 'Lambda' baryon polarizations in (Lambda_b -> Lambda l^+ l^-) decay
• Rare decays B -> (K, K*) (l+ l-, nu bar{nu}) in the quark model
• Light-front quark model analysis of rare $B\to K{\ell }^{+}{\ell }^{-}$ decays
• New physics effects to the lepton polarizations in the B -> K l^+ l^- decay
• Analysis of rare (B -> K_0*(1430) l^+ l^- decay) within QCD sum rules
• B->X_s l^+l^- in the MSSM at NNLO
• Exclusive B -> K^* l^+ l^- decay with polarized K^* and new physics effects
• Double-lepton polarization asymmetries in the (B -> K l^+ l^-) decay beyond the Standard Model
• CP Violation in the Exclusive Decays B -> pi e^+e^- and B -> rho e^+e^-
• Radiative and Semileptonic B Decays Involving the Tensor Meson K_2^*(1430) in the Standard Model and Beyond
• Study of $B\to K_0^{\ast }(1430)\ell \bar{\ell }$ Decays
• Polarization effects in exclusive semileptonic (Lambda_b -> Lambda l^+ l^-) decay
• Search for the Rare Decays B --> Kl^+l^- and B --> K^*l^+l^-
• Search for the rare decay B to pi l+ l-
• HQET and Form Factor Effects in $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$
• Search for $B\to \pi {\ell }^{+}{\ell }^{-}$ Decays at Belle
• Search for the Rare Decays B^+ -> mu^+ mu^- K^+, B^0 -> mu^+ mu^- K^*0(892), and B^0_s -> mu^+ mu^- phi at CDF
• Exclusive Lambda_b -> Lambda l^+ l^- decay in two Higgs doublet model
• Study of $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ Decays in the Family Non-universal $Z^{\prime }$ Models
• Two Higgs Doublet Model and Lepton Polarization in the B -> K tau+ tau- Decay
• Light-front quark model analysis of the exclusive rare $B_c\to D_{(s)}({\ell }^{+}{\ell }^{-},{\nu }_{\ell }{\bar{\nu }}_{\ell })$ decays
• Flavour-Conserving CP Phases in Supersymmetry and Implications for Exclusive B Decays
• Double-lepton polarization asymmetries in Lambda_b -> Lambda l^+ l^- decay
• Effect of both Z and Z'-mediated flavor-changing neutral currents on the baryonic rare decay $lambd{a}_b$ decays into $lambda{l}^{+}{l}^{-}$
• The exclusive $B->(K,K^{\ast }){\ell }^{+}{\ell }^{-}$ decays in a CP softly broken two Higgs doublet model
• Exclusive rare $B_s\to (K,\eta ,{\eta }^{\prime }){\ell }^{+}{\ell }^{-}$ decays in the light-front quark model
• Study of Bs-> ϕl^+ l^-$ Decay in a Single Universal Extra Dimension
• Lepton polarization asymmetries for $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$: A Model Independent approach
• B --> K^* τ^+ τ^- decay in the general two Higgs doublet model including the neutral Higgs boson effects
• b --> s τ^+ τ^- decay in the two Higgs doublet model with flavor changing neutral currents
• Constraints on a New Light Spin-One Particle from Rare b -> s Transitions
• Triple Gauge Boson Couplings in Rare B and K Decays
• Effects of the Electroweak Symmetry Breaking Sector in Rare B and K Decays
• Rare B -> K^* l^+ l^- decay, two Higgs doublet model, and light cone QCD sum rules
• Exclusive B --> K^* l^+ l^-$ decay in the three Higgs doublet model
• Forward-backward Asymmetry and Branching Ratio of $B \rar K_1 \ell^+ \ell^-$ Transition in Supersymmetric Models
• B_c meson rare decays in the light-cone quark model
• The CP asymmetry for B--> K^* l^+ l^- decay in the general two Higgs doublet model
• Search for Rare $b\to d{\ell }^{+}{\ell }^{-}$ Transitions at Belle
• Application of HQET to $B\to K^{(\ast )}$ Transitions
• Custodial bulk Randall-Sundrum model and B->K* l+ l'-
• Looking for forward backward asymmetries in $B\to K{\mu }^{+}{\mu }^{-}$ and $K^{+}\to {\pi }^{+}{\mu }^{+}{\mu }^{-}$
• CP-Violation in b \to s \ell^{+} \ell^{-} transition Beyond the Standard Model
• A comparative study on $B \rar K^\ast \ell^+ \ell^-$ and $B \rar K_0^\ast (1430) \ell^+ \ell^-$ decays in the Supersymmetric Models
• Polarized and Unpolarized Lepton Pair Forward-backward Asymmetries in $\overline{B}\to {\overline{K}}_0^{\ast }(1430){\ell }^{+}{\ell }^{-}$ and $\overline{B}\to \overline{K}{\ell }^{+}{\ell }^{-}$ Decays in Two Higgs Doublet Model
• Lepton polarization and CP-violating effects in $\overline{B}\to {\overline{K}}_0^{\ast }(1430){\ell }^{+}{\ell }^{-}$ Decay in Standard and Two Higgs Doublet Model
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• Radiative and Leptonic B-meson Decays from the B-factories