Potential, problems, and prospects of experimental investigations of superfluidity of heated nuclei

The status of modern experiments aimed at determining level densities and radiative strength functions in complex nuclei from spectra of products of various reactions via recording a cascade or a single photon (nucleon) is analyzed. It is shown that the most precise data for these parameters and, accordingly, the best possibilities for studying the superfluidity of heated nuclei can be obtained only from spectra of two-step reactions, the detection of nucleons or light nuclei at the first step being mandatory.