Assuming the newly observed structure Zb(10610) as a bottomonium-like molecular state B∗Bˉ, we calculate its mass in the framework of QCD sum rules. The numerical result is 10.54±0.22GeV for B∗Bˉ, which coincide with the mass of Zb(10610). This consolidates the statement made by Belle Collaboration that the Zb(10610) resonance could be a B∗Bˉ molecular state.
@article{arxiv.1105.5472,
title = {Could $Z_{b}(10610)$ be a $B^{*}\bar{B}$ molecular state?},
author = {Jian-Rong Zhang and Ming Zhong and Ming-Qiu Huang},
journal= {arXiv preprint arXiv:1105.5472},
year = {2011}
}
Comments
6 pages, 3 figures; misprints corrected; the version accepted for publication in Phys. Lett. B