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arXiv · 1901.01936

Strange hadrocharmonium

M. B. Voloshin
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Abstract

It has been recently suggested that the charged charmoniumlike resonances $Z_c(4100)$ and $Z_c(4200)$ are two states of hadrocharmonium, related by the charm quark spin symmetry in the same way as the lowest charmonium states $η_c$ and $J/ψ$. It is pointed out here that in this picture one might expect existence of their somewhat heavier strange counterparts, $Z_{cs}$, decaying to $η_c K$ and $J/ψK$. Some expected properties of such charmoniumlike strange resonances are discussed that set benchmarks for their search in the decays of the strange $B_s$ mesons.

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M. B. Voloshin. 2019-01-14. Strange hadrocharmonium. https://doi.org/10.1016/j.physletb.2019.135022

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