Decays of Z + b and Z ′ + b as hadronic molecules

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Abstract:

The two newly observed hidden-bottom mesons Z + b (10610) and Z ′ + b (10650) with quantum numbers JP = 1+ are considered as hadronic molecules composed of &$\bar{B}B^*$; and &$\bar{B}^*B^*$;, respectively. We give predictions for the widths of the strong two-body decays Z + b → ϒ(nS) + π+ and Z ′ + b → ϒ(nS) + π+ in a phenomenological Lagrangian approach.

Document Type: Research Article

DOI: http://dx.doi.org/10.1088/0954-3899/40/1/015002

Publication date: January 1, 2013

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