B Lifetimes and Mixing at the Tevatron

TL;DR

This paper reports on updated measurements of b-hadron lifetimes and mixing parameters from Tevatron data, including new limits on B_s oscillations, enhancing understanding of heavy flavor physics.

Contribution

It provides the first Run II measurements of B_s oscillation limits and updates previous lifetime and mixing measurements with improved accuracy.

Findings

Updated b-hadron lifetime measurements

First limits on B_s oscillation frequency from Run II data

Significant improvements in measurement precision

Abstract

We present recent results on b-hadron lifetimes and mixing obtained from the analysis of the data collected at the Tevatron Collider by the CDF and D0 Collaborations in the period 2002 - 2004. Many lifetime measurements have been updated since the Summer 2004 conferences, sometimes improving significantly the accuracy. Likewise the measurement of the $B_d$ oscillation frequency has been updated. New limits on the $B_s$ oscillation frequency have been determined using for the first time Run II data.