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[en] The BO and B-barO mesons are thought to be linear combinations of the mass eigenstates, which may differ in mass. The components of different mass in the wavefunction have a time-dependent phase difference. Thus the probability to observe a BO or B-barO meson oscillates. The mixing parameter χ = Δ m/Γ gives the oscillation frequency, in terms of the lifetime τ of the meson, where Δ m and Γ are the mass difference and width of the mass eigenstates. Techniques for measuring the mixing parameters are discussed. (Author)
Journal
Journal of Physics. G, Nuclear and Particle Physics; ISSN 0954-3899; 
; CODEN JPGPED; v. 18(10); p. 1683-1691
; CODEN JPGPED; v. 18(10); p. 1683-1691
[en] The goal of the SLAC B-Factory is to measure CP violation in the decay of B-mesons and to test the standard model description of CP violation. Work is now underway in upgrading the PEP collider for this project, and much of the preliminary detector design has been done. The physics goals and design of PEP-II are briefly discussed, and the current plans for the detector are outlined. copyright 1995 American Institute of Physics
Journal
No abstract available
Journal
[en] We give an estimate of the C-even B0 bar B0 background coming from the radiative decay Υ(4S)→B0 bar B0γ at B factories. Our result B(Υ(4S)→B0 bar B0γ)≅3x10-9 shows that such a background could be safely neglected in the analyses of CP-violating effects. copyright 1996 The American Physical Society
Journal
[en] Recently updated measurements of the B0antiB0 mixing parameter at the LEP storage ring are reported. The combined result from ALEPH, DELPHI, L3 and OPAL dilepton analyses is χbar = 0.119 ± 0.012. The first observation of the time dependence of the B0antiB0 oscillations is presented. Clear evidence for the time-dependent nature of the B0dantiB0d oscillation has been found by the ALEPH collaboration, using the vertex structure and charge correlation in D*-lepton and dilepton events. The frequency extracted from a fit to the D*-lepton distribution corresponds to a mass difference between the B0d states, of 3.44 +0.65-0.70 (stat.) +0.26-0.20 (syst.).10-4 eV. 3 figs., 15 refs
Source
Tran Thanh Van (ed.); 680 p; ISBN 2-86332-138-2; ; 1993; p. 393-398; Editions Frontieres; Gif-sur-Yvette (France); 28. Rencontre de Moriond: QCD and High Energy Hadronic Interactions; Les Arcs (France); 20-27 Mar 1993
; 1993; p. 393-398; Editions Frontieres; Gif-sur-Yvette (France); 28. Rencontre de Moriond: QCD and High Energy Hadronic Interactions; Les Arcs (France); 20-27 Mar 1993
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