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arXiv · 2007.05829

$\Lambda^*$ matter and its stability

J. Hrtánková·M. Schäfer·J. Mareš·A. Gal·E. Friedman·N. Barnea
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Abstract

We performed calculations of nuclear systems composed solely of $\Lambda^*$ hyperons, aiming at exploring the possibility of existence of absolutely stable $\Lambda^*$ matter. We considered $\Lambda^*$ interaction strengths compatible with the $\Lambda^*\Lambda^*$ binding energy $B_{\Lambda^*\Lambda^*}$ given by the $\bar{K}N$ interaction model by Yamazaki and Akaishi [1]. We found that the binding energy per $\Lambda^*$ saturates at values well below 100 MeV for mass number $A\geq120$. The $\Lambda^*$ matter is thus highly unstable against strong interaction decay.

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J. Hrtánková, M. Schäfer, J. Mareš, A. Gal, E. Friedman, N. Barnea. 2020-07-11. $\Lambda^*$ matter and its stability. https://arxiv.org/abs/2007.05829

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