Correlations in hypernuclear matter
Institut für Theoretische Physik, Universität Gießen, Heinrich-Buff-Ring 16, D-35392, Gießen, Germany
Accepted: 7 July 2007
Published online: 4 September 2007
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 interaction from a phenomenological Skyrme energy density functional, subtracting the long-range pionic contributions to the nucleonic spectral functions. We discuss our results for different hyperon-baryon ratios to show the influence of strangeness on the correlations in hypernuclear matter.
PACS: 21.30.-x Nuclear forces – / 21.65.+f Nuclear matter – / 21.80.+a Hypernuclei – / 24.10.Cn Many-body theory –
© Società Italiana di Fisica and Springer-Verlag, 2007