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

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

2008-02-19

arxiv.org/abs/0802.2646v2

Eur.Phys.J.A36:101-110,2008

Physics

Nuclear Physics

Nuclear Theory

10 Pages, 11 figures, 4 tables, minor modification, 1 reference added, version accepted for publication in EPJA

Scientific paper

10.1140/epja/i2008-10542-5

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 V_lowk. 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 V_lowk 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.

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