Results from Upsilon(5S) at Belle: Strange Beauty and other Beasts

TL;DR

This paper reports on the analysis of data collected at the Upsilon(5S) resonance by the Belle experiment, providing insights into B_s meson properties and the resonance itself from a unique, comprehensive dataset.

Contribution

It presents new measurements of B_s and Upsilon(10860) properties using the complete Belle dataset at the Upsilon(5S) resonance, enhancing understanding of these particles.

Findings

Determined properties of B_s mesons and Upsilon(10860) resonance.

Provided the world's largest sample of e+e- to Upsilon(10860) events.

Analyzed the decay characteristics of B_s mesons.

Abstract

The Belle experiment collected in 2005-6 a total of 23.6 fb$^{-1}$ of data at the $\Upsilon(10860)$ resonance, also known as $\Upsilon$(5S). These constitute nearly all of the world's sample of $e^+e^- \to \Upsilon$(10860) events, which provide clean $B_s$ pairs. We present here several $B_s$ and $\Upsilon$(10860) properties recently extracted from these data.