Comparative study of hyperon-nucleon interactions in a quark model and in chiral effective field theory by low-momentum equivalent interactions and G matrices
- Physics Division, Kyushu Dental College, Kitakyushu 803-8580 (Japan)
Hyperon-nucleons interactions constructed by two frameworks, the Kyoto-Niigata SU{sub 6} quark model and the chiral effective field theory, are compared by investigating equivalent interactions in a low-momentum space and, in addition, by calculating hyperon single-particle potentials in the lowest-order Brueckner theory in symmetric nuclear matter. Two descriptions are shown to give similar matrix elements in most channels after renormalizing high momentum components. Although the range of the {Lambda}N interaction is different in two potentials, the {Lambda} single-particle potential in nuclear matter is very similar. The {Sigma}-nucleus and XI-nucleus potentials are also found to be similar. These predictions are to be confronted with forthcoming experimental data.
- OSTI ID:
- 21386527
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 81, Issue 1; Other Information: DOI: 10.1103/PhysRevC.81.014003; (c) 2010 The American Physical Society; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHIRALITY
FIELD THEORIES
FORECASTING
G MATRIX
HYPERONS
MATRIX ELEMENTS
NUCLEAR MATTER
NUCLEI
NUCLEON-HYPERON INTERACTIONS
QUARK MODEL
SU-6 GROUPS
SYMMETRY
BARYON-BARYON INTERACTIONS
BARYONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LIE GROUPS
MATHEMATICAL MODELS
MATRICES
MATTER
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
STRANGE PARTICLES
SU GROUPS
SYMMETRY GROUPS