Search for B(s)0 anti-B(s)0 oscillations

Abreu, P.;Cortina Gil, Eduardo;DELPHI Collaboration;et.al.
(1997) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. 414, n° 3-4, p. 382-400 (1997)

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Oscillations of Bs0 mesons were studied in events with a large transverse momentum lepton selected from 3.2 million hadronic Z0 decays registered by DELPHI between 1991 and 1994. A limit on the mass difference between the physical Bs0 states Δms > 6.5 ps−1 at 95% C.L. was obtained by combining the results obtained in three channels.
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Abreu, P., Cortina Gil, E., DELPHI Collaboration, & et al. (1997). Search for B(s)0 anti-B(s)0 oscillations. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 414(3-4), 382-400. https://doi.org/10.1016/S0370-2693(97)01188-X (Original work published 1997)