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arXiv · 1802.09492

$S$ wave hidden charm - hidden strangeness production in $e^+e^-$ annihilation

M. B. Voloshin
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Abstract

It is suggested that the recently observed enhancement of the relative yield in $e^+e^-$ annihilation of states with hidden charm and hidden strangeness above 4.43\,GeV is associated with the $S$ wave production of the charmed strange meson pairs $D_{s0}(2317) \bar D_s^* + {\rm c.c.}$ and $D_{s1}^*(2460) \bar D_s+ {\rm c.c.}$. This mechanism implies a pattern of breaking of the Heavy Quark Spin Symmetry (HQSS) that can be tested in the final channels such as $η_c(1S) ϕ$, $h_c(1P) η$, $h_c(1P) η' $ produced in the same energy range.

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M. B. Voloshin. 2018-02-26. $S$ wave hidden charm - hidden strangeness production in $e^+e^-$ annihilation. https://doi.org/10.1016/j.physletb.2018.06.058

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