2000/11/16 by The OPAL collaboration, G. Abbiendi et al., G. Abbiendi · 1 citation
Physics and Astronomy · #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.1007/s100520100591
published as Eur.Phys.J.C19:241-256,2001 · 30 pages, 12 figures, submitted to Eur. Phys. J. C
arxiv created 2000/11/16 · openalex publication_date 2001/02/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
From data collected around the Z resonance by the OPAL detector at LEP, a sample of Bs decays was obtained using Ds-l+ combinations, where the Ds- was fully reconstructed in the phi pi-, K*0K- and Ks0K- decay channels or partially reconstructed in the phi l- nu (X) decay channel. These events were used to study Bs oscillation. The flavor (b or bbar) at decay was determined from the lepton charge while the flavor at production was determined from a combination of techniques. The expected sensitivity of the experiment is 4.1 ps-1. The experiment was not able to resolve the oscillatory behavior, and we deduced that the Bs oscillation frequency Delta ms > 1.0 ps-1 at the 95% confidence level.