Prediction of anomalous ${\rm Y}(5S)\to {\rm Y}(1^3{D}_J)\eta$ transitions

Abstract

In this work, we study the hadronic loop contribution to the ${\rm Y}(5S)\to {\rm Y}(1^3{D}_J)\eta$ ($J=1,2,3$) transitions. We predict that the branching ratios of ${\rm Y}(5S)\to {\rm Y}(1^3{D}_1)\eta$, ${\rm Y}(5S)\to {\rm Y}(1^3{D}_2)\eta$ and ${\rm Y}(5S)\to {\rm Y}(1^3{D}_3)\eta$ can reach up to $(0.5\sim 5.1)\times 10^{-3}$, $(0.7\sim 7.5)\times 10^{-3}$ and $(0.9\sim 9.6)\times 10^{-4}$, respectively. Since these predicted hadronic transitions of ${\rm Y}(5S)$ are comparable with these observed ${\rm Y}(5S)\to {\rm Y}(nS){\pi }^{+}{\pi }^{-}$ $(n=1,2,3)$, we suggest future experiment like Belle and BelleII to carry out the search for these anomalous ${\rm Y}(5S)\to {\rm Y}(1^3{D}_J)\eta$ transitions.

8 pages, 2 tables and 4 figures. Accepted by Phys. Rev. D

References in corpus (10)

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• Exploring the ${\rm Y}(6S)\to {\chi }_{bJ}\varphi$ and ${\rm Y}(6S)\to {\chi }_{bJ}\omega$ hidden-bottom hadronic transitions
• Exploring the ${\rm Y}(4S,5S,6S)\to h_b(1P)\eta$ hidden-bottom hadronic transitions
• Predicted $\Lambda \bar{\Lambda }$ and ${\Xi }^{-}{\bar{\Xi }}^{+}$ decay modes of the charmoniumlike $Y(4230)$
• Hidden-bottom hadronic transitions of ${\rm Y}(10753)$
• How higher charmonia shape the puzzling data of the $e^{+}{e}^{-}\to \eta J/\psi$ cross section
• Production of charmonium ${\chi }_{cJ}(2P)$ plus one $\omega$ meson by $e^{+}{e}^{-}$ annihilation
• Higher strangeonium decays into light flavor baryon pairs like $\Lambda \bar{\Lambda }$, $\Sigma \bar{\Sigma }$, and $\Xi \bar{\Xi }$
• $D$ wave bottomonia production from $Z_b^{(\prime )}$ decay
• Charmonium decays into ${\Lambda }_c{\bar{\Lambda }}_c$ pair governed by the hadronic loop mechanism
• Strong decays of the isovector-scalar $D^{\ast }{\bar{D}}^{\ast }$ hadronic molecule
• Non-$D\bar{D}$ Decays into Light Meson Pairs of the $D$-Wave Charmonium ${\psi }_3(3842)$