Excited states multiplets in nuclear spectra near 208Pb

Excited states in heavy even-even and odd-A isotopes near 208Pb are considered. To calculate ground state multiplets the delta-approximation for pairing between nucleons in j = 9/2 state is used. Multiplet splitting corresponds to pairing energy, which can be defined from nuclear masses. It allows one to calculate low-lying excitations without any fitting parameters. Excited states for isotopes with more than two valence nucleons are obtained using seniority model and coefficients of fractional parentage. Results of calculations are in a quite agreement with experimental data as for stable as for exotic nuclei