B Mixing

TL;DR

This paper reviews the physics of B meson flavor oscillations, summarizes experimental observations, and discusses measurements of oscillation frequencies and CKM matrix elements, advancing understanding of quark flavor mixing.

Contribution

It provides a comprehensive review of B meson oscillation phenomena, summarizes recent experimental measurements, and extracts CKM matrix elements from observed data.

Findings

Demonstrated time-dependence of B0-B0bar oscillations

Measured the oscillation frequency δm_d

Summarized efforts to measure B_s oscillation frequency

Abstract

The neutral $B$ mesons, $B^0$ and $B_s$, 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. In this article the physics of flavor oscillations is reviewed and theoretical predictions are summarized. The many observations that demonstrate the time-dependence of $B^0-\B0bar$ oscillations are presented along with a combined measurement of its frequency, $\delta m_d$. The attempts to measure the $B_s$ oscillation frequency, both directly and indirectly, are then summarized. Finally, values for the CKM elements $|V_{td}|$ and $|V_{ts}/V_{td}|$ are extracted.