Fits of the baryon magnetic moments to the quark model and spectrum-generating SU(3)

Journal Article · Wed Sep 01 00:00:00 EDT 1982 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.26.1103· OSTI ID:6693522

Bohm, A; Teese, R B

We show that for theoretical as well as phenomenological reasons the baryon magnetic moments that fulfill simple group transformation properties should be taken in intrinsic rather than nuclear magnetons. A fit of the recent experimental data to the reduced matrix elements of the usual octet electromagnetic current is still not good, and in order to obtain acceptable agreement, one has to add correction terms to the octet current. We have texted two kinds of corrections: U-spin-scalar terms, which are singles out by the model-independent algebraic properties of the hadron electromagnetic current, and octet U-spin vectors, which could come from quark-mass breaking in a nonrelativistic quark model. We find that the U-spin-scalar terms are more important than the U-spin vectors for various levels of demanded theoretical accuracy.

• Research Organization: Center for Particle Theory, University of Texas, Austin, Texas 78712
• OSTI ID: 6693522
• Journal Information: Phys. Rev. D; (United States), Vol. 26:5
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
MAGNETIC MOMENTS
MASS DIFFERENCE
MATRIX ELEMENTS
QUARK MODEL
SPIN
SU-3 GROUPS
SYMMETRY BREAKING
ANGULAR MOMENTUM
COMPOSITE MODELS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
LIE GROUPS
MATHEMATICAL MODELS
PARTICLE MODELS
PARTICLE PROPERTIES
SU GROUPS
SYMMETRY GROUPS
645202* - High Energy Physics- Particle Interactions & Properties-Theoretical- Electromagnetic Interactions & Properties