0000000000590042
AUTHOR
Rory Miskimen
Nucleon polarizabilities: From Compton scattering to hydrogen atom
We review the current state of knowledge of the nucleon polarizabilities and of their role in nucleon Compton scattering and in hydrogen spectrum. We discuss the basic concepts, the recent lattice QCD calculations and advances in chiral effective-field theory. On the experimental side, we review the ongoing programs aimed to measure the nucleon (scalar and spin) polarizabilities via the Compton scattering processes, with real and virtual photons. A great part of the review is devoted to the general constraints based on unitarity, causality, discrete and continuous symmetries, which result in model-independent relations involving nucleon polarizabilities. We (re-)derive a variety of such rel…
International workshop on next generation gamma-ray source
Journal of physics / G 49(1), 010502 (2022). doi:10.1088/1361-6471/ac2827