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

Understand

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.