The Forward-Backward Asymmetry of B to (pi,K) l^+ l^-: Supersymmetry at Work

Abstract

We analyze the forward-backward asymmetry of the decays B to (pi,K) l^+ l^- with l = mu or tau in the framework of the constrained minimal supersymmetric standard model. We find that, the asymmetry is enhanced at large tan beta and depends strongly on the sign of the mu parameter. For mu > 0, the asymmetry is typically large and observable whereas for mu < 0, it changes the sign and is suppressed by an order of magnitude. Including cosmological constraints we find that the asymmetry has a maximal value of about 30 %, produced when Higgs- and gauge- induced flavor violations are of comparable size, at a value of tan beta simeq 35. The present constraints from the B-factories are too weak to constrain parameter space, and the regions excluded by them are already disfavoured by at least one of B to X_s gamma, g-2, and/or cosmology. The size of the asymmetry is mainly determined by the flavor of the final state lepton rather than the flavor of the pseudoscalar.

18 pages; 11 eps figures; minor changes in text; journal version

References in corpus (41)

• Search for the Standard Model Higgs Boson at LEP
• Observation of Large CP Violation in the Neutral B Meson System
• Observation of CP violation in the B^0 meson system
• Precise Measurement of the Positive Muon Anomalous Magnetic Moment
• Branching Fraction and Photon Energy Spectrum b -> s gamma
• Hadronic light-by-light corrections to the muon g-2: the pion-pole contribution
• Muon anomalous magnetic dipole moment in supersymmetric theories
• The CMSSM Parameter Space at Large tan beta
• Analysis of Neutral Higgs-Boson Contributions to the Decays B_s -> l^+l^- and B -> K l^+l^-
• A Measurement of the Branching Fraction for the Inclusive B --> X(s) gamma Decays with the Belle Detector
• Hadronic light-by-light scattering contribution to the muon g-2: an effective field theory approach
• New Cosmological and Experimental Constraints on the CMSSM
• Constraints on the Minimal Supergravity Model and Prospects for SUSY Particle Production at Future Linear e^+ e^- Colliders
• Scalar flavour-changing neutral currents in the large-tan(beta) limit
• Neutralino relic density in minimal supergravity with co-annihilations
• Correlation of B_s -> mu^+ mu^- and (g-2)_mu in Minimal Supergravity
• Supersymmetry and the Anomalous Anomalous Magnetic Moment of the Muon
• Comment on the Pion Pole Part of the Light-by-Light Contribution to the Muon $g-2$
• Coannihilation Effects in Supergravity and D-Brane Models
• Calculation of two-loop virtual corrections to b --> s l+ l- in the standard model
• Implications of Muon g-2 for Supersymmetry and for Discovering Superpartners Directly
• Pion pole contribution to hadronic light-by-light scattering and muon anomalous magnetic moment
• Implications of muon anomalous magnetic moment for supersymmetric dark matter
• Constraining Supersymmetry
• Two-loop virtual corrections to B --> X_s l^+ l^- in the standard model
• Impact of Muon Anomalous Magnetic Moment on Supersymmetric Models
• Upper Limits on Sparticle Masses from g-2 and the Possibility for Discovery of Supersymmetry at Colliders and in Dark Matter Searches
• Detection of B_s->mu mu at the Tevatron Run II and Constraints on the SUSY Parameter Space
• Combining the Muon Anomalous Magnetic Moment with other Constraints on the CMSSM
• Recent Result from E821 Experiment on Muon g-2 and Unconstrained Minimal Supersymemtric Standard Model
• Muon g-2, Dark Matter Detection and Accelerator Physics
• Observation of the Decay $B\to K{\ell }^{+}{\ell }^{-}$
• Implications of New CMB Data for Neutralino Dark Matter
• B -> X_s gamma in Supersymmetry with Explicit CP Violation
• Dark Matter Direct Searches and the Anomalous Magnetic Moment of Muon
• Comment on the sign of the pseudoscalar pole contribution to the muon g-2
• Search for the Rare Decays B --> Kl^+l^- and B --> K^*l^+l^-
• Study of rare and hadronic B decays in BABAR
• Searches for the Neutral Higgs Bosons of the MSSM: Preliminary Combined Results Using LEP Data Collected at Energies up to 209 GeV
• Improved Upper Limits on the FCNC Decays $B\to K{\ell }^{+}{\ell }^{-}$ and $B\to K^{\ast }(892){\ell }^{+}{\ell }^{-}$
• Evidence for the Electroweak Penguin Decay $B\to X_s{\ell }^{+}{\ell }^{-}$}

Cited by in corpus (34)

• Angular Distributions of B -> K ll Decays
• Implications of LHCb measurements and future prospects
• Measurements of branching fractions, rate asymmetries, and angular distributions in the rare decays B --> Kl+l- and B --> K*l+l-
• Rare decay B -> K ll form factors from lattice QCD
• Standard Model predictions for B -> Kll with form factors from lattice QCD
• Enhancement of Br(B_d -> mu^+ mu^-)/Br(B_s -> mu^+ mu^-) in the MSSM with Modified Minimal Flavour Violation and Large tan(beta)
• Phenomenology of semileptonic B-meson decays with form factors from lattice QCD
• Higgs-mediated leptonic decays of B_s and B_d mesons as probes of supersymmetry
• Measurement of Forward-Backward Asymmetry and Wilson Coefficients in $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$
• Higgs boson couplings to quarks with supersymmetric CP and flavor violations
• $B\to \pi \ell \ell$ form factors for new-physics searches from lattice QCD
• B_s -> mu^+ mu^- and B -> X_s mu^+ mu^- in MSSM
• Probe R-parity Violating Supersymmetry Effects in $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ and $B_s\to {\ell }^{+}{\ell }^{-}$ 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
• Lepton polarization correlations in $B\to K^{\ast }{\tau }^{-}{\tau }^{+}$
• Lepton polarization asymmetry in radiative dileptonic B-meson decays in MSSM
• Polarized lepton pair forward-backward asymmetries in (B -> K^* l^+ l^-) decay beyond the standard model
• SUSY effects on the exclusive semi-leptonic decays $B\to \pi {\tau }^{+}{\tau }^{-}$ and $B\to \rho {\tau }^{+}{\tau }^{-}$
• Higgs--mediated K -> pi nu nu-bar in the MSSM at large tan(beta)
• 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
• Forward-backward Asymmetry in $K^{+}\to {\pi }^{+}{\ell }^{+}{\ell }^{-}$
• Supersymmetric effects on Forward Backward asymmetries of $B\to K{\ell }^{+}{\ell }^{-}$
• Effects of the scalar FCNC in $b\to s{l}^{+}{l}^{-}$ transitions and supersymmetry
• Exclusive (B -> rho l^+ l^-) decay and Polarized lepton pair forward--backward asymmetries
• Large forward-backward asymmetry in B --> K mu+ mu- from new physics tensor operators
• Probing extended Higgs sector through rare b --> s mu+ mu- transitions
• Study of semileptonic decays $B\to \pi l^{+}{l}^{-}$ and $B\to \rho l^{+}{l}^{-}$ in non-universal Z' model
• The Forward Backward asymmetries of $B\to X_s{\tau }^{+}{\tau }^{-}$ in the MSSM
• $B\to X_s{l}^{+}{l}^{-}$ in the left-right supersymmetric model
• Looking for forward backward asymmetries in $B\to K{\mu }^{+}{\mu }^{-}$ and $K^{+}\to {\pi }^{+}{\mu }^{+}{\mu }^{-}$
• Implication of Z-mediated FCNC on semileptonic decays $B_s\to \varphi l^{+}{l}^{-}$ and $B^{+}\to K^{+}{l}^{+}{l}^{-}$
• CP violation in the radiative dileptonic B-meson decays
• Probe the effects of split SUSY in rare B decays
• Probing new physics through B->K l+ l- decays in R-parity violating minimal supersymmetric standard model