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Dirac-Brueckner Approach to Hyperon Interactions and Hypernuclei

H. Lenske·C. M. Keil·F. Hofmann·S. Briganti
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Abstract

The density dependent relativistic hadron (DDRH) theory is introduced as an effective field theory for nuclei and hypernuclei. A Dirac-Brueckner approach to in-medium nucleon-hyperon interactions is presented. Density dependent meson-baryon vertices are determined from DBHF self-energies in infinite matter. Scaling laws for hyperon vertices are derived from a diagrammatic analysis of self-energies. In a local density approximation the DB vertices are applied in relativistic DDRH Hartree calculations to finite hypernuclei. Lambda single particle spectra and spin-orbit splittings are described reasonably well over the whole mass region.

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H. Lenske, C. M. Keil, F. Hofmann, S. Briganti. 2000-08-09. Dirac-Brueckner Approach to Hyperon Interactions and Hypernuclei. https://arxiv.org/abs/nucl-th/0008016

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