标题： $e^{+}e^{-}\to K^{0}K^{-}π^{+}J/ψ+c.c.$在 4.396 到 4.951 GeV 之间的$\sqrt{s}$的截面首次测量 显示英文标题

标题： First measurement of the cross sections for $e^{+}e^{-}\to K^{0}K^{-}π^{+}J/ψ+c.c.$ at $\sqrt{s}$ from 4.396 to 4.951 GeV

摘要： 使用BESIII探测器收集的19个质心系能量下的$e^+e^-$碰撞数据，从$4.396$到$4.951~\mathrm{GeV}$，总积分亮度为$8.86~{\rm fb}^{-1}$，首次观察到过程$e^+e^-\to K^{0}K^-\pi^+ J/\psi+c.c.$，统计显著性为$9.4\sigma$，汇总所有数据样本。 对于此过程，在19个质心能量处报告了截面和在$90\%$置信度水平的上限。~在截面线形中未观察到统计上显著的矢量结构，也未在单个能量点或组合数据样本中看到$K\pi$、$K\bar{K}$、$K\bar{K}\pi$、$KJ/\psi$、$\pi J/\psi$和$K\pi J/\psi$的任何中间态。 显示英文摘要

摘要： Using $e^+e^-$ collision data at 19 center-of-mass energies ranging from $4.396$ to $4.951~\mathrm{GeV}$ corresponding to a total integrated luminosity of $8.86~{\rm fb}^{-1}$ collected by the BESIII detector, the process $e^+e^-\to K^{0}K^-\pi^+ J/\psi+c.c.$ is observed for the first time, with a statistical significance of $9.4\sigma$ summing up all the data samples. For this process, the cross section and the upper limit at the $90\%$ confidence level are reported at each of the 19 center-of-mass energies.~No statistically significant vector structures are observed in the cross section line shape, nor are any intermediate states of $K\pi$, $K\bar{K}$, $K\bar{K}\pi$, $KJ/\psi$, $\pi J/\psi$, and $K\pi J/\psi$ seen at individual energy points or in the combined data sample.