Baryon Interactions in Nuclear and Hypernuclear Matter

Density dependent hadron field theory.

In symmetric nuclear matter and stable nuclei one uses very often strictly phenomenological approaches, both in non-relativistic and relativistic formulation. In this contribution, a fully microscopic approach to nucleon-nucleon (NN) interactions in symmetric and asymmetric nuclear matter and extensions to hypernuclear matter will be discussed. Dirac-Brueckner theory is used to derive inmedium ...

Interactions and Response Functions in Exotic Nuclei

The transition from mean-field to correlation dynamics is studied by nuclear many-body theory in nuclear matter and finite nuclei at extreme isospin. In-medium interactions in nuclear and hypernuclear matter are described by DDRH theory with density dependent meson-baryon vertex functionals. Dynamical correlations from pairing interactions and core polarization are found to increase strongly wh...

Correlations in hypernuclear matter

We investigate short range correlations in nuclear and hypernuclear matter. Self-energies due to short range correlations and their influence on the nucleon and Λ-hyperon spectral functions are described in an approach accounting for a realistic treatment of mean-field dynamics and a self-consistently derived quasi-particle interaction. Landau-Migdal theory is used to derived the short range in...

Microscopic baryon-baryon interactions at finite density and hypernuclear structure

Letter of Intent Hypernuclei with Stable Heavy Ion Beam and RI-beam Induced Reactions at GSI (HypHI) Hypernuclear Magnetic Moments and Exotic Hypernuclei

In order to understand baryon-baryon interactions under flavored SU(3), one must investigate the interaction between nucleons and hyperons, which can be accessed so far mainly by studying hypernuclei. Since hyperons are expected to be one of the main ingredients of neutron dense matter such as neutron stars, understanding the interaction including hyperons is essential to understand our univers...