Hyperfine splitting in a realistic basis for baryons

Journal Article · Tue Jan 01 04:00:00 EST 1985 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.31.128· OSTI ID:6211653

Sartor, R; Stancu, F

We calculate the positive- and negative-parity spectrum of baryons by diagonalizing the hyperfine Hamiltonian in a space corresponding to the SU(6) multiplets 56, 70, and 20. The highest spin considered is J = (7/2) for positive parity and J = (5/2) for negative parity. The main difference with the work of Isgur and Karl based on the harmonic oscillator is that we consider the more realistic unperturbed wave functions derived variationally by Carlson, Kogut, and Pandharipande in a flux-tube quark model. The finite size of the quark is also taken into account.

• Research Organization: Universite de Liege, Institut de Physique B5, Sart Tilman, B-4000 Liege 1, Belgium
• OSTI ID: 6211653
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 31:1; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645206* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions
Baryon No. = 1-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
BARYONS
ELEMENTARY PARTICLES
ENERGY LEVELS
FERMIONS
FUNCTIONS
HADRONS
HAMILTONIANS
HARMONIC OSCILLATOR MODELS
HYPERFINE STRUCTURE
LIE GROUPS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
PARITY
PARTICLE PROPERTIES
POSTULATED PARTICLES
QUANTUM OPERATORS
QUARKS
SPIN
SU GROUPS
SYMMETRY GROUPS
WAVE FUNCTIONS