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B M IXING 1

B M IXING 1 ▪ Abstract The neutral B mesons, B 0 and B s 0 , can oscillate between their particle and antiparticle states owing to flavor-changing weak interactions. In recent years, techniques to detect these oscillations as a function of the meson's decay time have been developed. This article reviews the physics of flavor oscillations and summarizes theoretical predictions. The many observations that demonstrate the time dependence of oscillations are presented along with a combined measurement of its frequency, Δ m d = 0.484 ± 0.015 ps −1 . The attempts to measure the B s 0 oscillation frequency, both directly and indirectly, are then summarized, currently resulting in a limit of Δ m s > 14.6 ps −1 (95% CL). Finally, values for the CKM elements | V td | = (3.6 ± 0.4) × 10 −3 and | V ts / V td | > 4.7 (95% CL) are extracted. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Nuclear and Particle Science Annual Reviews

B M IXING 1

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Publisher
Annual Reviews
Copyright
Copyright © 2000 by Annual Reviews. All rights reserved
Subject
Review Articles
ISSN
0066-4243
DOI
10.1146/annurev.nucl.50.1.577
Publisher site
See Article on Publisher Site

Abstract

▪ Abstract The neutral B mesons, B 0 and B s 0 , can oscillate between their particle and antiparticle states owing to flavor-changing weak interactions. In recent years, techniques to detect these oscillations as a function of the meson's decay time have been developed. This article reviews the physics of flavor oscillations and summarizes theoretical predictions. The many observations that demonstrate the time dependence of oscillations are presented along with a combined measurement of its frequency, Δ m d = 0.484 ± 0.015 ps −1 . The attempts to measure the B s 0 oscillation frequency, both directly and indirectly, are then summarized, currently resulting in a limit of Δ m s > 14.6 ps −1 (95% CL). Finally, values for the CKM elements | V td | = (3.6 ± 0.4) × 10 −3 and | V ts / V td | > 4.7 (95% CL) are extracted.

Journal

Annual Review of Nuclear and Particle Science – Annual Reviews

Published: Dec 1, 2000

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