title: New way to produce dense double-antikaonic dibaryon system, KKNN, through Λ(1405)-doorway sticking in p+p collisions.
abstract: A recent successful observation of a dense and deeply bound K nuclear system, K-pp, in the p+p→K++K-pp reaction in a DISTO experiment indicates that the double-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.
authors.affiliation: RIKEN Nishina Center, Saitama, Japan. yamazaki@nucl.phys.s.u-tokyo.ac.jp
authors.forename: Toshimitsu
authors.initials: T
authors.lastname: Yamazaki
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Akaishi
authors.forename: Maryam
authors.initials: M
authors.lastname: Hassanvand
mesh_terms: D008956:Models, Chemical; D009686:Nuclear Physics; D013057:Spectrum Analysis