It turns out that the weak interaction causes a kaon gradually to convert into its antiparticle, the antikaon, and then back again.

弱交互作会使k介子逐渐成反粒子──反k介子，然后。

A chiral hadronic model is extended to investigate antikaon condensation and hyperons production of protoneutron stars.

相对论平均场下的手徵强子模型研究了前中子星内(平均值)K凝聚和超子的生成。