Heavy quark spin symmetry breaking in near-threshold $J^{PC}=1^{--}$ quarkonium-like resonances

Abstract

A mixing of near-threshold quarkonium-like resonances with heavy meson-antimeson pairs results in an enhancement of heavy quark spin symmetry breaking, since the meson pairs are not eigenstates of the heavy quark spin. The decomposition of $P$-wave states of meson pairs in terms of the heavy-quark-pair spin states is considered in the channel with $J^{PC}=1^{--}$, which is directly produced in $e^{+}{e}^{-}$ annihilation. Specific processes are suggested for experimental study of the effects of the mixing with heavy meson pairs and of the internal spin structure of bottomonium and charmonium resonances.

15 pages

References in corpus (5)

• Observation of two charged bottomonium-like resonances in Y(5S) decays
• Charmonium
• Measurement of the near-threshold $e^{+}{e}^{-}\to D\bar{D}$ cross section using initial-state radiation
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• Measurement of $e^{+}{e}^{-}\to D_s^{(\ast )+}{D}_s^{(\ast )-}$ cross sections near threshold using initial-state radiation

Cited by in corpus (30)

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• Suppression of the S-wave production of (3/2)^+ + (1/2)^- heavy meson pairs in e^+e^- annihilation
• Bottomonium-like states: physics case for energy scan above the $B\bar{B}$ threshold at Belle-II
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• Enhanced breaking of heavy quark spin symmetry
• The strong decay patterns of $Z_c$ and $Z_b$ states in the relativized quark model
• Modeling Charmonium-$\eta$ Decays of $J^{PC}=1^{--}$ Higher Charmonia
• Probing the $XYZ$ states through radiative decays
• $P$-wave coupled channel effects in electron-positron annihilation
• Hunting for the $X_b$ via hidden bottomonium decays
• Heavy-Quark spin symmetry breaking in the Born-Oppenheimer approximation
• Study of $I=0$ bottomonium bound states and resonances in $S$, $P$, $D$ and $F$ waves with lattice QCD static-static-light-light potentials
• Model-independent predictions for decays of hidden-heavy hadrons into pairs of heavy hadrons
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• ${\chi }_{c0}\omega$ production in $e^{+}{e}^{-}$ annihilation through $\psi (4160)$
• A mixing model for bottomoniumlike $Z_b$ resonances
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• The process $e^{+}{e}^{-}\to \pi \pi X(3823)$ in the soft pion limit
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• Measurement of the $e^{+}{e}^{-}\to B_s^0{\bar{B}}_s^{0}X$ cross section in the energy range from $10.63$ to $11.02$ GeV using inclusive $D_s^{\pm }$ and $D^0$ production
• Mixing of partial waves near $B^{\ast }{\bar{B}}^{\ast }$ threshold in $e^{+}{e}^{-}$ annihilation
• Strong decays of the lowest bottomonium hybrid within an extended Born-Oppenheimer framework
• Recent Results on Charmonia- and Bottomonia-like Particles at Belle
• Hidden-bottom hadronic decays of ${\rm Y}(10753)$ with a ${\eta }^{(\prime )}$ or $\omega$ emission
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