Dirac-Brueckner Approach to Hyperon Interactions and Hypernuclei
摘要
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.
引用
@article{arxiv.nucl-th/0008016,
title = {Dirac-Brueckner Approach to Hyperon Interactions and Hypernuclei},
author = {H. Lenske and C. M. Keil and F. Hofmann and S. Briganti},
journal= {arXiv preprint arXiv:nucl-th/0008016},
year = {2007}
}
备注
To appear in: Proceedings of the International Workshop on Hypernuclear Physics with Electromagnetic Probes (HYJLAB99), ed. by L. Tang, Hampton, Virginia (1999)