Υ(5S) Results from Belle: Strange Beauty and Other Beasts
arXiv:1109.1452 · doi:10.1063/1.3700639
Abstract
The B-factories have successfully exploited the unique advantages of the Υ(4S) resonance to study many aspects of the B_d and B_u mesons. The Υ(10860) resonance, also known as Υ(5S), is above mass threshold for the B_s and shares many of the same advantages. The Belle experiment has collected more than 120/fb at the Υ(5S), corresponding to 7.9 million B_s events. First results from these data are presented, including the first observation of a baryonic decay of B_s, a novel measurement of sin 2ϕ_1, and observation of h_b(1P), h_b(2P), and two charged bottomonium-like states.
4 pages, 4 figures