Bottomonium Spectroscopy at CLEO
High Energy Physics - Experiment
2010-11-15 v2
Abstract
Results of the latest CLEO contribution to bottomonium spectroscopy is presented, the confirmation of the eta_b(1S0) ground state of bottomonium in the radiative decay Upsilon(3S) -> gamma eta_b. The bottomonium hyperfine splitting is determined to be Delta M_hf(1S) = 68.5+-6.6+-2.0 MeV and the branching fraction B(Upsilon(3S) -> gamma eta_b=(7.1+-1.8+-1.1)x10^-4. These results are in good agreement with those reported by BaBar.
Keywords
Cite
@article{arxiv.0912.2704,
title = {Bottomonium Spectroscopy at CLEO},
author = {Kamal K. Seth},
journal= {arXiv preprint arXiv:0912.2704},
year = {2010}
}
Comments
7 pages, 6 figures, presented at Beauty 2009, 12th International Conference on B-Physics at Hadron Machines, Sept. 7-11th, Heidelberg Univ., Germany