Nucleon polarizabilities and Delta-resonance magnetic moment in chiral EFT

Recent chiral EFT calculations of nucleon polarizabilities reveal a problem in the current empirical determination of proton’s electromagnetic polarizabilities. We also report on the progress in the empirical determination of the $\mathrm{\Delta }$(1232)-resonance magnetic moment in the process of $\gamma p \to p \pi^0 \gamma’$ measured at MAMI.