Search for rare b-meson decays at CDF

2007/10/12 by CDF Collaboration, Mack, Philipp
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.0710.2502

openalex publication_date 2007/10/12 · openalex created_date 2022/07/12 · openalex updated_date 2026/07/28

Abstract

We report on the search for B⁰_s→μ⁺μ^-, B⁰_d→μ⁺μ^- decays and b→ s μ⁺μ^- transitions in exclusive decays of B mesons using the CDF II detector at the Fermilab Tevatron Collider. Using 2 fb^-1 of Run II data we find upper limits on the branching fractions B(B⁰_s→μ⁺μ^-)<5.8× 10^-8 and B(B⁰_d→μ⁺μ^-)<1.8× 10^-8 at 95% confidence level. The results for the branching fractions of the b→ s μ⁺μ^- transitions using 924 pb^-1 of Run II data are B(B⁺→μ⁺μ^-K⁺)=(0.60±0.15±0.04)× 10^-6, B(B⁰_d→μ⁺μ^-K^*0)=(0.82±0.31±0.10)× 10^-6 and B(B⁰_s→ μ⁺μ^-ϕ)/B(B⁰_s→ J/ψϕ) < 2.61× 10^-3 at 95% confidence level.

Related

• Rare B meson decays at the Tevatron
• Updated Search for B(s) -> mu+mu- at CDF
• CDF results on b → s μ μ decays
• A Combination of CDF and DO Limits on the Branching Ratio of B_s(d) to mu+ mu- Decays
• Measurements of B Rare Decays at the Tevatron