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arxiv: 1105.5472 · v3 · pith:7E7HFDS5new · submitted 2011-05-27 · ✦ hep-ph · hep-ex

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

classification ✦ hep-ph hep-ex
keywords molecularstatemassassumingbellebottomonium-likecalculatecoincide
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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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