Relativistic corrections to the masses and the magnetic moments of the ground state baryons, in the quark model

Thesis/Dissertation · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5263834

Raspini, A

In the present work the author calculates the masses and the magnetic moments of the 18 ground state light baryons, including the relativistic corrections of order 1/c/sup 2/. The author adopts the quark model of baryons, and describe the short distance strong interaction of quarks (within a hadron) as a single massless vector gluon exchange. The large distance behavior of the same interaction is then accounted for by the introduction of a harmonic-like confinement. Both parts of the internal potential are taken to have 1/c/sup 2/ relativistic corrections. The external electromagnetic interaction (with a uniform, constant and weak vector B radiation field) is studied, and the baryon moments are defined and calculated, in perturbation theory. The need for quark anomalous magnetic moments is pointed out, in order to obtain good agreement with experiment. In absence of the external field, the predicted baryon masses are also examined, and compared with experimental values.

• Research Organization: Lowell Univ., MA (USA)
• OSTI ID: 5263834
• Country of Publication: United States
• Language: English

Related Subjects

645201* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- General & Scattering Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BAG MODEL
BARYONS
BASIC INTERACTIONS
COMPOSITE MODELS
DATA
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
EXTENDED PARTICLE MODEL
FERMIONS
GROUND STATES
HADRONS
INFORMATION
INTERACTIONS
MAGNETIC MOMENTS
MASS
MATHEMATICAL MODELS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE MODELS
QUARK MODEL
QUARK-QUARK INTERACTIONS
RELATIVISTIC RANGE
THEORETICAL DATA