The lowest-lying spin-1/2 and spin-3/2 baryon magnetic moments in chiral perturbation theory

Abstract

We review some recent progress in our understanding of the lowest-lying spin-1/2 and spin-3/2 baryon magnetic moments (MMs) in terms of Chiral Perturbation Theory (ChPT). In particular, we show that at next-to-leading-order ChPT can describe the MMs of the octet baryons quite well. We also make predictions for the decuplet MMs at the same chiral order. Among them, the MMs of the ${\Delta }^{++}$ and ${\Delta }^{+}$ are found to agree well with data within the experimental uncertainties.

4 pages, 2 figures, talk given by L. S. Geng at the 5th International Conference on Quarks and Nuclear Physics, September 21-26, 2009, Beijing, China

References in corpus (8)

• Electromagnetic excitation of the Delta(1232)-resonance
• Chiral Perturbation Theory and Baryon Properties
• Leading SU(3)-breaking corrections to the baryon magnetic moments in Chiral Perturbation Theory
• Electromagnetic structure of the lowest-lying decuplet resonances in covariant chiral perturbation theory
• Chiral Perturbation Theory: Introduction and Recent Results in the One-Nucleon Sector
• Leading-order decuplet contributions to the baryon magnetic moments in Chiral Perturbation Theory
• SU(3)-breaking corrections to the hyperon vector coupling $f_1(0)$ in covariant baryon chiral perturbation theory
• Electromagnetic properties of the Delta(1232) and decuplet baryons in the self-consistent SU(3) chiral quark-soliton model

Cited by in corpus (4)

• Octet baryon masses in next-to-next-to-next-to-leading order covariant baryon chiral perturbation theory
• The masses and axial currents of the doubly charmed baryons
• Masses of doubly charmed baryons in the extended on-mass-shell renormalization scheme
• Finite-volume effects on octet-baryon masses in covariant baryon chiral perturbation theory