Octet baryon magnetic moments in the chiral quark model with configuration mixing

Journal Article · Thu Jan 01 00:00:00 EST 1998 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.57.452· OSTI ID:566139

Linde, J; Ohlsson, T; Snellman, H ^[1]

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1. Theoretical Physics, Department of Physics, Royal Institute of Technology, SE-100 44 Stockholm (Sweden)

The Coleman{endash}Glashow sum-rule for magnetic moments is always fulfilled in the chiral quark model, independently of SU(3) symmetry breaking. This is due to the structure of the wave functions, coming from the non-relativistic quark model. Experimentally, the Coleman{endash}Glashow sum-rule is violated by about ten standard deviations. To overcome this problem, two models of wave functions with configuration mixing are studied. One of these models violates the Coleman{endash}Glashow sum-rule to the right degree and also reproduces the octet baryon magnetic moments rather accurately. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 566139
• Journal Information: Physical Review, D, Vol. 57, Issue 1; Other Information: PBD: Jan 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
QUARK MODEL
CHIRAL SYMMETRY
BARYONS
OCTET MODEL
MAGNETIC MOMENTS
MIXING
SUM RULES
SU-3 GROUPS
SYMMETRY BREAKING
WAVE FUNCTIONS