Search for the $Y(4140)$ via $e^{+}{e}^{-}\to \gamma \varphi J/\psi$ at $\sqrt{s}=$ 4.23, 4.26 and 4.36 GeV

Abstract

Using data samples collected at center-of-mass energies $\sqrt{s}=4.23$, 4.26, and 4.36 GeV with the BESIII detector operating at the BEPCII storage ring, we search for the production of the charmoniumlike state $Y(4140)$ through a radiative transition followed by its decay to $\varphi J/\psi$. No significant signal is observed and upper limits on $\sigma [e^{+}{e}^{-}\to \gamma Y(4140)]\cdot \mathcal{B}(Y(4140)\to \varphi J/\psi )$ at the $90\%$ confidence level are estimated as 0.35, 0.28, and 0.33 pb at $\sqrt{s}=4.23$, 4.26, and 4.36 GeV, respectively.

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Cited by in corpus (1)

• Multiquark Resonances