Baryon octet magnetic moments in chiral perturbation theory: More on the importance of the decuplet

Journal Article · Tue Aug 01 04:00:00 EDT 2000 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.62.034010· OSTI ID:20217284

Puglia, S J ^[1]; Ramsey-Musolf, M J ^[1]

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1. Department of Physics, University of Connecticut, Storrs, Connecticut 06269 (United States)

We address the impact of treating the decuplet of spin-(3/2) baryons as an explicit degree of freedom in the chiral expansion of the magnetic moments of the octet of spin-(1/2) baryons. We carry out a complete calculation of the octet moments to O(1/{lambda}{sub {chi}}{sup 3}), including decuplet contributions to the chiral loops. In contrast with results of previous analyses, we find that inclusion of the decuplet preserves the convergence behavior of the chiral expansion implied by power counting arguments. (c) 2000 The American Physical Society.

• OSTI ID: 20217284
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 3 Vol. 62; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
CHIRAL SYMMETRY
CONVERGENCE
MAGNETIC MOMENTS
OCTET MODEL
PERTURBATION THEORY
THEORETICAL DATA