Structure of negative parity states at {mathbf {6},lesssim , mathbf {E}_mathbf {x}

Abstract

In the doubly magic nucleus ^{208}mathrm{Pb} states at excitation energies 6,lesssim , E_x <7.0 MeV populated by the inelastic proton scattering via the doublet isobaric analog resonances g_{{ 7}/{2}}+d_{{ 3}/{2}} in ^{209}mathrm{Bi} are studied. Sixteen states containing dominant strengths of the configurations g_{{ 7}/{2}}p_{{ 3}/{2}}, d_{{ 3}/{2}}p_{{ 3}/{2}}, g_{{ 7}/{2}}f_{{ 5}/{2}}, d_{{ 3}/{2}}f_{{ 5}/{2}} are newly assigned spins from 2^- to 6^-, among them ten states are newly identified. Amplitudes with relative signs of up to four one-particle one-hole configurations with strengths down to 0.05% are determined in 40 states with spins from 1^- to 6^-. Amplitudes of configurations d_{{ 3}/{2}}p_{{ 1}/{2}}, d_{{ 3}/{2}}p_{{ 3}/{2}}, d_{{ 3}/{2}}f_{{ 5}/{2}} for fourteen states and amplitudes of g_{{ 7}/{2}}p_{{ 1}/{2}}, g_{{ 7}/{2}}p_{{ 3}/{2}}, g_{{ 7}/{2}}f_{{ 5}/{2}} for twenty-seven states are determined. Total strengths up to the full strength are found for configurations d_{{ 3}/{2}}p_{{ 1}/{2}}, d_{{ 3}/{2}}p_{{ 3}/{2}}, d_{{ 3}/{2}}f_{{ 5}/{2}} with spins from 1^- to 3^- and for g_{{ 7}/{2}}p_{{ 1}/{2}}, g_{{ 7}/{2}}p_{{ 3}/{2}}, g_{{ 7}/{2}}f_{{ 5}/{2}} with spins from 1^- to 6^-.