Acta Physica Polonica B

Vol. 32, No. 7--8, July--August 2001, page 2179


Nuclear and Atomic States of  \Sigma Hyperons and the \Sigma N Interaction

Janusz Dabrowski, Jacek Rozynek, Gerassimos S. Anagnostatos

It is shown that among four models of the Nijmegen baryon--baryon interaction, only model F is consistent both with the analysis of \Sigma - atoms and (K-,\pi ) reactions. Simple estimates of the strong-interaction shifts and widths of the lowest observed levels of \Sigma - atoms are applied for model F with satisfying results. It is concluded that model F is favored as a realistic representation of the \Sigma N interaction.

PACS numbers: 13.75.Ev, 36.10.Gv


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