Antikaon-nucleus dynamics: from quasibound states to kaon condensation

TL;DR

This paper reviews the dynamics of antikaons in nuclei, focusing on quasibound states and the absence of kaon condensation in finite systems, through coupled-channel analysis and mean-field calculations.

Contribution

It provides a comprehensive review of Kbar-nucleus interactions, including recent studies on quasibound states and the extension of mean-field models to multi-Kbar systems.

Findings

Identification of K^-pp as a quasibound state

Extension of mean-field calculations to hypernuclear systems

Conclusion that kaon condensation does not occur in finite nuclei

Abstract

Coupled-channel Kbar-N dynamics near threshold and its repercussions in few-body Kbar-nuclear systems are briefly reviewed, highlighting studies of a K^-pp quasibound state. In heavier nuclei, the extension of mean-field calculations to multi-Kbar nuclear and hypernuclear quasibound states is discussed. It is concluded that strangeness in finite self-bound systems is realized through hyperons, with no room for kaon condensation.