1996/02/13 by S. L. Wu, Sau Lan Wu, Wu, Sau Lan
Computer Science · Physics and Astronomy · #Nonlinear Dynamics and Pattern Formation #Quantum chaos and dynamical systems #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/9602003
Invited talk at the XVII International Symposium on Lepton-Photon Interactions, Beijing, China, 1995. 26 pages, latex, 15 figures
arxiv created 1996/02/13 · arxiv updated 2009/11/30
This paper presents recent time-dependent measurements of neutral B meson oscillations. Similar to the K0--K0 system, there are two such systems involving the b quark: Bd0--Bd0 and Bs0--Bs0. Thus the physical states are respectively KS and KL, (Bd)S and (Bd)L, and (Bs)S and (Bs)L. The oscillation between each pair of states can be used to determine their mass difference. The present world average for the (Bd)S--(Bd)L mass difference is Δmd = 0.457±0.019 ps-1 (or (3.01±0.13)× 10-4 eV). Using fBs = 12% (the fraction of Bs produced in b events), the current lower limit on the corresponding Δms is 6.1 ps-1 (or 4.0× 10-3 eV).