RIKEN Nishina Center, Saitama, Japan.
Proc Jpn Acad Ser B Phys Biol Sci. 2011;87(6):362-70. doi: 10.2183/pjab.87.362.
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.
最近在 DISTO 实验中观察到 p+p→K++K-pp 反应中一个密集且深度束缚的 K 核系统 K-pp 的成功结果表明,双-K 双重子 K-K-pp,它被预测为一个密集的核系统,也可以在 p+p 碰撞中形成。我们从理论上发现,K--K- 排斥在降低 K-K-pp 的密度和结合能方面没有起到显著作用,并且,当两个 Λ(1405)共振在短程 p+p 碰撞中同时产生时,如果 K-K-pp 是一个密集的物体,正如所预测的那样,它们就成为大量形成 K-K-pp 的门户。