${\chi }_{c0}\omega$ production in $e^{+}{e}^{-}$ annihilation through $\psi (4160)$

Abstract

We argue that the recent BESIII data on the cross section for the process $e^{+}{e}^{-}\to {\chi }_{c0}\omega$ in the center of mass energy range 4.21 - 4.42 GeV can be described by the contribution of the known charmonium-like resonance $\psi (4160)$ with the mass of about 4190\,MeV. The value of the coupling in the transition $\psi (4160)\to {\chi }_{c0}\omega$ needed for this mechanism is comparable to that in another known similar transition ${\chi }_{c0}(2P)\to J/\psi \omega$. The suggested mechanism also naturally explains the reported relative small value of the cross section for the final states ${\chi }_{c1}\omega$ and ${\chi }_{c2}\omega$ above their respective thresholds.

6 pages

References in corpus (12)

• Observation of a near-threshold omega-J/psi mass enhancement in exclusive B-->K omega J/psi decays
• Evidence for the decay X(3872) --> J/psi omega
• Study of $e^{+}{e}^{-}\to \omega {\chi }_{cJ}$ at center-of-mass energies from 4.21 to 4.42 GeV
• Measurement of Charm Production Cross Sections in e+e- Annihilation at Energies between 3.97 and 4.26 GeV
• Determination of the $\psi (3770)$, $\psi (4040)$, $\psi (4160)$ and $\psi (4415)$ resonance parameters
• Production of singlet P-wave $c\bar{c}$ and $b\bar{b}$ states
• Observation of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\pi }^0{\chi }_{bJ}$ and search for $X_b\to \omega {\rm Y}(1S)$ at $\sqrt{s}\sim 10.867$ GeV
• Heavy quark spin symmetry breaking in near-threshold $J^{PC}=1^{--}$ quarkonium-like resonances
• Strong decays of the $XYZ$ states
• The role of $f_0(1710)$ in the $\varphi \omega$ threshold peak of $J/\Psi \to \gamma \varphi \omega$
• Observation of the Hadronic Transitions Chi_{b 1,2}(2P) -> omega Upsilon(1S)
• Remarks on the decays chi_{bJ}^\prime -> omega Upsilon

Cited by in corpus (7)

• Multiquark Resonances
• Cross section measurements of $e^{+}{e}^{-}\to \omega {\chi }_{c0}$ from $\sqrt{s}=$4.178 to 4.278 GeV
• Observation of $e^{+}{e}^{-}\to \omega {\chi }_{c1,2}$ near $\sqrt{s}$ = 4.42 and 4.6 GeV
• Observation of $e^{+}{e}^{-}\to {\chi }_{c0}\omega$ and missing higher charmonium $\psi (4S)$
• Cross section line shape of $e^{+}{e}^{-}\to {\chi }_{c0}\omega$ around the $Y(4260)$ mass region
• A note on the newly observed Y(4220) resonance
• Search for $\psi (4S)\to \eta J/\psi$ in $B^\pm \ra ηJ/ψK^\pm$ and $e^{+}{e}^{-}\to \eta J/\psi$ processes