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29 March 2024
 
  » arxiv » nucl-th/0210077

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Chiral dynamics in systems with strangeness
E.Oset ; D. Jido ; J. Palomar ; A. Ramos ; C. Bennhold ; S. Kamalov ;
Date 25 Oct 2002
Journal Few Body Syst.Suppl. 14 (2003) 263-268
Subject nucl-th
AbstractIn this talk a brief review of several problems involving systems with strangeness is made. In the first place one shows how the $Lambda (1405)$, $Lambda(1670)$ and $Sigma(1620)$ states, for $S = -1$, and the $Xi(1620)$ for $S= -2$ are generated dynamically in the context of unitarized chiral perturbation theory. The results for the $ar{K}N$ interaction are then used to evaluate the $K^- d$ scattering length. Results obtained for the kaon selfenergy in a nuclear medium within this approach, with application to $K^-$ atoms, are also mentioned. Finally a few words are said about recent developments in the weak decay of $Lambda$ hypernuclei and the puzzle of the $Gamma_n/Gamma_p$ ratio.
Source arXiv, nucl-th/0210077
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