Compatibility of recent Ξ-nuclear bound state signals

J-PARC E05 reported recently a hint of a ${\Xi }^{-}{-}^{11}B$ nuclear state in the ${}^{12}C{(K^{-},K^{+})}_{\Xi }^{12}\mathrm{Be}$ spectrum, bound by $B_{{\Xi }^{-}}=8.9\pm {1.4}_{-3.1}^{+3.8}$ MeV. Using a density-dependent Ξ-nuclear optical potential $V_{\mathrm{opt}}^{\Xi }\left(\rho \right)$ we explore to what extent a ${\Xi }_{1s}^{-}$ assignment of this nuclear state is compatible with ${\Xi }_{1s}^{-}$ and ${\Xi }_{1p}^{-}$ nuclear-state interpretations of ${\Xi }^{-}$ capture events in light emulsion-nuclei experiments. We find that the only acceptable ${\Xi }_{1s}^{-}$ assignment at present, barring an abnormally strong repulsive ${\rho }^2$ component of $V_{\mathrm{opt}}^{\Xi }\left(\rho \right)$, is that for the ${\Xi }^{-}{-}^{11}B$ signal. This finding supports reassigning ${\Xi }^{-}$ capture events in ¹⁴N, originally assigned as ${\Xi }_{1s}^{-}{-}^{14}N$ nuclear states, to ${\Xi }_{1p}^0{-}^{14}C$ nuclear states. The depth of $V_{\mathrm{opt}}^{\Xi }\left(\rho \right)$ at nuclear-matter density ${\rho }_0=0.17$ fm⁻³ is then $-V_{\mathrm{opt}}^{\Xi }\left({\rho }_0\right)\approx 21$ MeV.