Detection of Bs→μ+μ− at the tevatron Run II and constraints on the SUSY parameter space

2002/03/31 by R. Arnowitt, R Arnowitt, B. Dutta +5 · 10 citations
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1016/s0370-2693(02)01972-x

published as Phys.Lett.B538:121-129,2002 · 12 pages, latex, 7 figures, references added, comments added on RunIIb trigger, to appear in Phys. Lett.B

arxiv created 2002/05/28 · openalex publication_date 2002/06/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

A measurement of the branching ratio for the rare decay mode B_s->mu mu at the Tevatron is an opportunity to test various supersymmetric scenarios. We investigate the prospects for studying this mode in Run II and estimate that CDF would be sensitive to this decay for a branching ratio > 1.2 × 10^-8 with 15 \invfb (or, if a similar analysis holds for D0, >6.5× 10^-9 for the combined data). We calculate the branching ratio in minimal supergravity (mSUGRA) parameter space, and find that tanβ> 30 can be probed. (This mSUGRA parameter space cannot be probed by direct production of SUSY particles at Run II.) Including other experimental constraints on the mSUGRA parameter space, one finds that CDF \bsmumu measurements would be able to cover the full mSUGRA parameter space for tanβ= 50 if the muon g_μ - 2 anomaly exceeds ∼ 11 × 10^-10, and about half the allowed parameter space for tanβ= 40. A large branching ratio > 7(14) × 10^-8 (feasible with only 2 \invfb) would be sufficient to exclude the mSUGRA model for tanβ≤ 50(55). Dark matter neutralino-proton detection cross sections are examined in the allowed region, and should be large enough to be accessible to future planned experiments. Combined measurements of \bsmumu the Higgs mass m_h and the muon g_μ-2 anomaly would be sufficient to determine the μ>0 mSUGRA parameters (or show the model is inconsistent with the data). We also briefly discuss the \bsmumu decay in R parity violating models. There, for some models, the branching ratio can be large enough to be detected even for small tanβand large \mhalf.

Citations

• Yukawa unification, b→sγ and bino–stau coannihilation

Cited by

• Search for rare leptonic B decays at the Tevatron
• Supersymmetric Higgs singlet effects onB-meson flavor-changing neutral current observables at largetanβ
• Measuring the fermionic couplings of the Higgs boson at future colliders as a probe of a nonminimal flavor structure
• Higgs funnel region of supersymmetric dark matter for smalltanβand renormalization group effects on pseudoscalar Higgs boson with scalar mass nonuniversality
• Lepton flavour violating Higgs boson decays, τ→μγ and Bs→μ+μ− in the constrained MSSM+νR with large tanβ
• Phenomenology of GUT-less supersymmetry breaking
• Resummed effective Lagrangian for Higgs-mediated flavor-changing neutral current interactions in theCP-violating MSSM
• Implications of the nonuniversalZboson in flavor changing neutral current mediated rare decays
• Correlation between direct dark matter detection andBr(Bs→μμ)with a large phase ofBs−B¯smixing
• Updated Constraints on the Minimal Supergravity Model