The decays ${\chi }_{cJ}\to {\mathrm{\Sigma }}^0\overline{p}{K}^{+}+\mathrm{c}.\mathrm{c}.$ $(J=0,1,2)$ are studied via the radiative transition $\psi (3686)\to \gamma {\chi }_{cJ}$ based on a data sample of $(448.1\pm 2.9)\times 10^6$ $\psi (3686)$ events collected with the BESIII detector. The branching fractions of ${\chi }_{cJ}\to {\mathrm{\Sigma }}^0\overline{p}{K}^{+}+\mathrm{c}.\mathrm{c}.$ $(J=0,1,2)$ are measured to be $(3.03\pm 0.12\pm 0.15)\times 10^{-4}$, $(1.46\pm 0.07\pm 0.07)\times 10^{-4}$, and $(0.91\pm 0.06\pm 0.05)\times 10^{-4}$, respectively, where the first uncertainties are statistical and the second are systematic. In addition, no evident structure is found for excited baryon resonances on the two-body subsystems with the limited statistics.

• Received 22 September 2020
• Accepted 13 October 2020

DOI:https://doi.org/10.1103/PhysRevD.102.092006

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Published by the American Physical Society