Compatibility of recent Ξ-nuclear bound state signals

J-PARC E05 reported recently a hint of a Ξ⁻−¹¹B nuclear state in the C12(K⁻,K⁺)_Ξ¹²Be spectrum, bound by B_Ξ⁻=8.9±1.4_−3.1^+3.8 MeV. Using a density-dependent Ξ-nuclear optical potential V_opt^Ξ(ρ) we explore to what extent a Ξ_1s⁻ assignment of this nuclear state is compatible with Ξ_1s⁻ and Ξ_1p⁻ nuclear-state interpretations of Ξ⁻ capture events in light emulsion-nuclei experiments. We find that the only acceptable Ξ_1s⁻ assignment at present, barring an abnormally strong repulsive ρ² component of V_opt^Ξ(ρ), is that for the Ξ⁻−¹¹B signal. This finding supports reassigning Ξ⁻ capture events in ¹⁴N, originally assigned as Ξ_1s⁻−¹⁴N nuclear states, to Ξ_1p⁰−¹⁴C nuclear states. The depth of V_opt^Ξ(ρ) at nuclear-matter density ρ₀=0.17 fm⁻³ is then −V_opt^Ξ(ρ₀)≈21 MeV.