Revisiting Signature of Minimal Gauge Mediation

Abstract

We revisit phenomenology of the minimal gauge-mediated model. This model is motivated from the SUSY CP and flavor problems. A specific feature of this model is that \tanβis naturally large, since the B term in the Higgs potential is zero at the messenger scale. This leads to significant SUSY contributions to various low-energy observables. We evaluate the anomalous magnetic moment of the muon and the branching ratio of \bar{B}\to X_sγtaking account of recent theoretical and experimental developments. We find that the current experimental data prefer a low messenger scale (\sim 100 TeV) and gluino mass around 1 TeV. We also calculate the branching ratios of \bar{B}\to X_s l^+l^-, B_s\to μ^+μ^-, and B^-\to τ^- \barν, and show that these observables are strongly correlated with each other in this model.

arXiv comment20 pages, 16 figures

References in corpus (29)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• Final Report of the Muon E821 Anomalous Magnetic Moment Measurement at BNL
• New Tools for Low Energy Dynamical Supersymmetry Breaking
• Dynamical Supersymmetry Breaking Simplified
• Constraining Warm Dark Matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-alpha forest
• Dynamical Supersymmetry Breaking at Low Energies
• The Top Quark Mass in Supersymmetric SO(10) Unification
• Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
• Higgs-Mediated $B^0->{\mu }^{+}{\mu }^{-}$ in Minimal Supersymmetry
• Muon g-2: Review of Theory and Experiment
• Improved predictions for g-2 of the muon and α_{\rm QED}(M_Z^2)
• Analysis of Neutral Higgs-Boson Contributions to the Decays B_s -> l^+l^- and B -> K l^+l^-
• Evidence of the Purely Leptonic Decay B- --> tau- nu_tau-bar
• Electromagnetic Logarithms in B -> X_s l+ l-
• Scalar flavour-changing neutral currents in the large-tan(beta) limit
• Generalized messengers of supersymmetry breaking and the sparticle mass spectrum
• The B Meson Decay Constant from Unquenched Lattice QCD
• Improved Measurement of the Electroweak Penguin Process B->Xsll
• Measurement of the B -> Xs l+ l- branching fraction with a sum over exclusive modes
• Variations on Minimal Gauge Mediated Supersymmetry Breaking
• Averages of b-hadron Properties at the End of 2005
• Correlation between Delta M_s and B^0_{s,d} --> mu^+ mu^- in Supersymmetry at Large tan beta
• Large tan beta in Gauge-Mediated SUSY-Breaking Models
• Analysis of Br(B-->X_s gamma) at NNLO with a Cut on Photon Energy
• The effect of H^\pm on B^\pm -> τ^\pm νand B^\pm -> μ^\pm ν
• Determining the sign of the b -> s gamma amplitude
• Low-Energy Signals for a Minimal Gauge-Mediated Model
• Imminent Phenomenology of a Minimal Gauge-Mediated Model

Cited by in corpus (7)

• The MSSM confronts the precision electroweak data and the muon g-2
• Testing the Minimal Direct Gauge Mediation at the LHC
• Upperbound on Squark Masses in Gauge-Mediation Model with Light Gravitino
• Stability of Metastable Vacua in Gauge Mediated SUSY Breaking Models with Ultra Light Gravitino
• WIMP dark matter in gauge-mediated SUSY breaking models and its phenomenology
• Large tan(beta) effects in flavour physics
• Revisiting R-invariant Direct Gauge Mediation