Hyperfine splitting and the experimental candidates for \eta_b(2S)
High Energy Physics - Phenomenology
2013-05-30 v2 High Energy Physics - Experiment
Abstract
Predictions for the hyperfine splitting of 2S bottomonia are compared with the two recent experimental candidates for the \eta_b(2S). The smaller splitting of the Belle state is consistent with unquenched lattice QCD computations, many potential models, and a model-independent relation which works well for charmonia. The larger splitting for the state extracted from CLEO data is inconsistent with most predictions.
Cite
@article{arxiv.1212.3250,
title = {Hyperfine splitting and the experimental candidates for \eta_b(2S)},
author = {T. J. Burns},
journal= {arXiv preprint arXiv:1212.3250},
year = {2013}
}
Comments
8 pages, 1 figure. Journal version with an additional reference added