Strange magnetic moment of the nucleon and SU(3) breaking: Group theoretical approach

Journal Article · Sat Oct 01 04:00:00 EDT 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.045203· OSTI ID:20699083

Jido, D; Weise, W ^[1]

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1. Physik-Department, Technische Universitaet Muenchen, D-85747 Garching (Germany)

An extended group-theoretical approach to magnetic moments of the octet baryons is proposed with the aim of extracting the strange magnetic moment of the nucleon. Special attention is given to flavor SU(3) breaking. In this approach, isoscalar and isovector magnetic moments are treated separately in view of their different behavior under SU(3) breaking. We conclude that the anomalous magnetic moment associated with the flavor singlet current is small. Together with the small isoscalar anomalous magnetic moment of the nucleon, this implies suppression of the strange magnetic moment of the proton which is found to be small and positive, {mu}{sup (s)}=(0.16{+-}0.03){mu}{sub N} in units of the nuclear magneton.

• OSTI ID: 20699083
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 72; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALGEBRAIC CURRENTS
FLAVOR MODEL
ISOVECTORS
MAGNETIC MOMENTS
PROTONS
STRANGENESS
SU-3 GROUPS