Partial wave analysis of $\psi (3686)\to K^{+}{K}^{-}\eta$

Abstract

Using a sample of $(448.1\pm 2.9)\times 10^6$ $\psi (3686)$ events collected with the BESIII detector, we perform the first partial wave analysis of $\psi (3686)\to K^{+}{K}^{-}\eta$. In addition to the well established states, $\varphi (1020)$, $\varphi (1680)$, and $K_3^{\ast }(1780)$, contributions from $X(1750)$, $\rho (2150)$, ${\rho }_3(2250)$, and $K_2^{\ast }(1980)$ are also observed. The $X(1750)$ state is determined to be a $1^{--}$ resonance. The simultaneous observation of the $\varphi (1680)$ and $X(1750)$ indicates that the $X(1750)$, with previous observations in photoproduction, is distinct from the $\varphi (1680)$. The masses, widths, branching fractions of $\psi (3686)\to K^{+}{K}^{-}\eta$ and the intermediate resonances are also measured.

arXiv comment12 pages, 11 figures, 5 tables, published in PRD

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Cited by in corpus (10)

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• Mass Spectra of $qq\bar{q}\bar{q}$, $ss\bar{s}\bar{s}$ and $qq\bar{s}\bar{s}$ Tetraquarks using Regge Phenomenology
• Arrangement for $K_2^{\ast }$ meson family
• QCD analysis of electromagnetic Dalitz decays $J/\psi \to {\eta }^{(\prime )}{\ell }^{+}{\ell }^{-}$
• Spectroscopy of $cc\bar{c}\bar{c}$ and $ss\bar{c}\bar{c}$ Tetraquarks within the Framework of Regge Phenomenology
• Spectroscopic study of $ss\bar{b}\bar{b}$ and $bb\bar{b}\bar{b}$ Tetraquarks using Regge phenomenology
• Investigation of Mass and Decay Characteristics of the Light-Strange Tetraquark
• The hybrid nonet of ${\pi }_1(1600)$ and ${\eta }_1(1855)$: analysis and predictions for the kaonic members
• Amplitude analysis and branching fraction measurement of $J/\psi \to \Lambda {\bar{\Sigma }}^0\eta +c.c$