Baryon-baryon interactions in free space and baryonic medium

Details Baryon-baryon interactions in free space and baryonic medium Baryon-baryon interactions in free space and baryonic medium

2003-02-13

arxiv.org/abs/nucl-th/0302027v1

Physics

Nuclear Physics

Nuclear Theory

Proceedings for Hirschegg 2003: Nuclear Structure and Dynamics at the Limits, Hirschegg, Austria, JANUARY 12 - 18, 2003

Scientific paper

We study the interactions of the octet baryons in a relativistic meson exchange approach connecting free-space and in-medium interactions with those in finite (hyper)nuclei. A short sketch of the model including the relativistic T- and G-matrix and the mapping of the G-matrix onto density dependent vertex functionals in the density dependent relativistic hadron field theory (DDRH) is given. From new spectroscopic data on medium mass hypernuclei we extract the single particle spectrum including spin-orbit splitting. An extraction of the $\Lambda\omega$ vector- and tensor vertex as well as the $\Lambda\sigma$-vertex shows a strong breaking of SU(3) symmetry.

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