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The European Physical Journal A

, Volume 36, Issue 1, pp 101–110 | Cite as

Hyperon-nucleon single-particle potentials with low-momentum interactions

  • H. Ðapo
  • B. -J. SchaeferEmail author
  • J. Wambach
Regular Article - Theoretical Physics

Abstract.

Single-particle potentials in Hartree-Fock approximation for different hyperon-nucleon (YN channels are calculated in the framework of the effective low-momentum YN interaction \(\ensuremath{V_{{\rm low} k}}\) . In contrast to the nucleon-nucleon interaction, the available experimental data for the YN interaction are scarce. As a consequence, no unique YN low-momentum potential \(\ensuremath{V_{{\rm low} k}}\) can be predicted from the various bare potentials. The resulting momentum- and density-dependent single-particle potentials for several different bare OBE models and for chiral effective field theory are compared to each other.

PACS.

21.65.-f Nuclear matter 13.75.Ev Hyperon-nucleon interactions 21.30.Fe Forces in hadronic systems and effective interactions 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2008

Authors and Affiliations

  1. 1.Institut für KernphysikTU DarmstadtDarmstadtGermany
  2. 2.Institut für PhysikKarl-Franzens-Universität GrazGrazAustria
  3. 3.Gesellschaft für Schwerionenforschung mbHDarmstadtGermany

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