Could $Z_{b}(10610)$ be a $B^{*}\bar{B}$ molecular state?

Details Could $Z_{b}(10610)$ be a $B^{*}\bar{B}$ molecular state? Could $Z_{b}(10610)$ be a $B^{*}\bar{B}$ molecular state?

2011-05-27

arxiv.org/abs/1105.5472v3

Phys.Lett.B704:312-315,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 3 figures; misprints corrected; the version accepted for publication in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2011.09.039

Assuming the newly observed structure $Z_{b}(10610)$ as a bottomonium-like molecular state $B^{*}\bar{B}$, we calculate its mass in the framework of QCD sum rules. The numerical result is $10.54\pm0.22 GeV$ for $B^{*}\bar{B}$, which coincide with the mass of $Z_{b}(10610)$. This consolidates the statement made by Belle Collaboration that the $Z_{b}(10610)$ resonance could be a $B^{*}\bar{B}$ molecular state.

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