Hypernuclei and nuclear matter in a chiral SU(3) RMF model
Department of Physics, Faculty of Science, Hokkaido University, 060-0810, Sapporo, Japan
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Accepted: 7 July 2007
Published online: 4 September 2007
We develop a chiral SU(3) RMF model for octet baryons, as an extension of the recently developed chiral SU(2) RMF model with logarithmic sigma potential. For Σ -meson coupling, strong repulsion (SR) and weak repulsion (WR) cases are examined in existing atomic shift data of Σ- . In both of these cases, we need an attractive pocket of a few MeV depth around nuclear surface.
PACS: 21.65.+f Nuclear matter – / 21.80.+a Hypernuclei –
© Società Italiana di Fisica and Springer-Verlag, 2007