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

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

2010-01-04

arxiv.org/abs/1001.0465v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

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.

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