Magnetic Moments, Hadron Masses, and Quark Masses

Two independent quark-model predictions of the ..lambda.. magnetic moments, in agreement with one another and with experiment to 1%, are obtained by using two different inputs for SU(3) breaking in quark masses: (1) (m/sub s//m/sub u/) = (M/sub ..sigma../)/(M/sub ..delta../ - M/sub N/); and (2) m/su...

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Veröffentlicht in:	Phys. Rev. Lett.; (United States) 1978-01, Vol.41 (24), p.1629-1631
1. Verfasser:	Lipkin, Harry J.
Format:	Artikel
Sprache:	eng
Schlagworte:	BARYONS COMPOSITE MODELS ELEMENTARY PARTICLES FERMIONS FIELD THEORIES HADRONS HYPERONS LAMBDA PARTICLES LIE GROUPS MAGNETIC MOMENTS MASS DIFFERENCE MATHEMATICAL MODELS PARTICLE MODELS PARTICLE PROPERTIES PHYSICS OF ELEMENTARY PARTICLES AND FIELDS QUANTUM CHROMODYNAMICS QUANTUM FIELD THEORY QUARK MODEL STRANGE PARTICLES SU GROUPS SU-3 GROUPS SYMMETRY BREAKING SYMMETRY GROUPS 645202 > High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
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Beschreibung
Zusammenfassung:	Two independent quark-model predictions of the ..lambda.. magnetic moments, in agreement with one another and with experiment to 1%, are obtained by using two different inputs for SU(3) breaking in quark masses: (1) (m/sub s//m/sub u/) = (M/sub ..sigma../)/(M/sub ..delta../ - M/sub N/); and (2) m/sub s/ - m/sub u/ = M/sub ..lambda../ - M/sub N/. I discuss the implications of the surprising success of a description of quark magnetic moments as Dirac moments with quark masses related so simply to hadron masses.
ISSN:	0031-9007
DOI:	10.1103/PhysRevLett.41.1629