Measurement of B_s Oscillations and CP Violation Results from D0

TL;DR

This paper reports measurements of B_s^0 - ar B_s^0 oscillation frequency and CP violation parameters using data from the D0 experiment, providing insights into flavor oscillations and CP violation in the B_s system.

Contribution

The paper presents new measurements of B_s oscillation frequency and CP-violating phase using combined semi-leptonic and hadronic decay data from D0, improving precision over previous results.

Findings

Measured B_s oscillation frequency m_s with increased accuracy.

Provided an improved measurement of the B_s CP-violating phase.

Enhanced understanding of flavor oscillations and CP violation in B_s mesons.

Abstract

We present a measurement of the $B_s^0 - \bar B_s^0$ oscillation frequency, $\Delta m_s$, using a combination of semi-leptonic and hadronic $B_s$ decay candidates selected from data collected by the D0 Experiment at the Fermilab Tevatron. We also present several results on CP violation, including an improved measurement of the $B_s$ CP-violating phase from a flavor-tagged analysis of $B_s^0 \to J/\psi + \phi$ decays.