2005/08/30 by R. Bernhard, Bernhard, R., D. Glenzinski +17
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/0508058
openalex publication_date 2005/08/30 · arxiv created 2005/09/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We combine the results of CDF and DO searches for the rare decays Bs to mu+ mu- and Bd to mu+ mu-. The experiments use 364 pb-1 and 300 pb-1 of data respectively. The limits on the branching ratios are obtained by normalizing the estimated sensitivity to the decay B+ to J/psi K+, taking into account the fragmentation ratios fu/fs(d). The combined results exclude branching ratios of BR(Bs to mu+ mu-) > 1.5x10-7 and BR(Bd to mu+ mu- > 4.0x10-8 at 95% confidence level. These are the most stringent limits on these decays at the present time.