Measurements of $B_s^0$-oscillations at the Tevatron

TL;DR

This paper reports on the measurement of the $B_s^0$-meson oscillation frequency at the Tevatron, highlighting the experimental progress and the first precise measurement achieved by CDF and DØ collaborations since 2001.

Contribution

It presents the first precise measurement of $B_s^0$ oscillation frequency at the Tevatron, confirming earlier limits and establishing a 5-sigma result.

Findings

DØ provided the first two-sided limit on $B_s^0$ oscillations.

CDF confirmed the limit and achieved a 5-sigma measurement.

The results advance understanding of $B_s^0$ mixing.

Abstract

Measuring the oscillation frequency in the $B_s^0$-meson system was one of the main goals in b-physics for the two experiments CDF and D{\O} at the Tevatron-Collider since the start of RunII in the year 2001. The D{\O} collaboration was the first experiment, which was able to give a two sided limit for the oscillation frequency of $B_s^0$ mesons. Shortly after the CDF collaboration confirmed this result and was able to give a $5\sigma$ measurement.