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Updated: Jun 1, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
New way to produce dense double-antikaonic dibaryon system, KKNN, through Λ(1405)-doorway sticking in p+p collisions
Toshimitsu Yamazaki1, Yoshinori Akaishi, Maryam Hassanvand
1RIKEN Nishina Center, Saitama, Japan. yamazaki@nucl.phys.s.u-tokyo.ac.jp
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.
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