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

2008/02/29 by Haris Djapo, Haris Đapo, Bernd-Jochen Schaefer +3
Physics and Astronomy · #High-Energy Particle Collisions Research #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th

paper · pdf · doi:10.1140/epja/i2008-10542-5

published as Eur.Phys.J.A36:101-110,2008 · 10 Pages, 11 figures, 4 tables, minor modification, 1 reference added, version accepted for publication in EPJA

arxiv created 2008/03/06 · openalex publication_date 2008/04/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

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 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.

Citations

• Σ-nucleus potential studied with the(π−,K+)reaction on medium-to-heavy nuclear targets
• Soft-core hyperon-nucleon potentials
• Few-Nucleon Forces and Systems in Chiral Effective Field Theory
• Hyperon single-particle potentials calculated from quark-model baryon–baryon interactions
• Extended-soft-core baryon-baryon model. II. Hyperon-nucleon interaction
• Hyperon-nucleon scattering and hyperon masses in the nuclear medium
• Microscopic study of neutrino trapping in hyperon stars