A recent successful observation of a dense and deeply bound \\bar{K} nuclear system, K⁻pp, in the p + p → K⁺ + K⁻pp reaction in a DISTO experiment indicates that the double-\\bar{K} dibaryon, K⁻K⁻pp, which was predicted to be a dense nuclear system, can also be formed in p + p collisions. We find theoretically that the K⁻-K⁻ repulsion plays no significant role in reducing the density and binding energy of K⁻K⁻pp and that, when two Λ(1405) resonances are produced simultaneously in a short-range p + p collision, they act as doorways to copious formation of K⁻K⁻pp, if and only if K⁻K⁻pp is a dense object, as predicted.

(Contributed by Toshimitsu YAMAZAKI, M.J.A.)