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Observation of the decays <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>χ</mml:mi></mml:mrow><mml:mrow><mml:mi>c</mml:mi><mml:mi>J</mml:mi></mml:mrow></mml:msub><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi mathvariant="normal">Σ</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup><mml:mover accent="true"><mml:mrow><mml:mi>p</mml:mi></mml:mrow><mml:mrow><mml:mo accent="true" stretchy="false">¯</…
The decays $\chi_{cJ}\to\Sigma^{0}\bar{p}K^{+}+{\rm c.c.}~(J = 0, 1, 2)$ are studied via the radiative transition $\psi(3686)\to\gamma\chi_{cJ}$ based on a data sample of $(448.1 \pm 2.9)\times10^{6}$ $\psi(3686)$ events collected with the BESIII detector. The branching fractions of $\chi_{cJ}\to\Sigma^{0}\bar{p}K^{+}+{\rm c.c.}~(J = 0, 1, 2)$ are measured to be $(3.03 \pm 0.12\pm 0.15)\times10^{-4}$, $(1.46 …