Renewed Interest in Spectroscopy of the Lightest Doubly-Odd N = Z Nuclei

The existing experimental data for the gamma decay of the stable N=Z doubly-odd nuclei and the beta decay of the corresponding isospin multiplets is reviewed. The structure of the lightest nuclei with masses A <= 14 is used to test and constrain ab initio nuclear theories. Most of the data were obtained in the second half of the last century and, in some cases, lack the needed precision for comparison with theoretical calculations. Recent spectroscopic studies in the lightest doubly-odd N = Z nuclei are discussed, as well as open problems related to the understanding of their structures and ideas for future experiments.

Automated summary

This article reviews the existing experimental data for the gamma decay of the stable N=Z doubly-odd nuclei and the beta decay of the corresponding isospin multiplets. It discusses the use of the structure of the lightest nuclei with masses A <= 14 to test and constrain ab initio nuclear theories. The article also addresses the lack of precision in some of the data obtained in the second half of the last century and highlights recent spectroscopic studies in the lightest doubly-odd N = Z nuclei, as well as open problems and future experiment ideas related to their understanding.