Abstract

The lifetimes of the 2+1 and 4+1 states of 208Po were measured in the α-transfer reaction 204Pb(12C,8Be)208Po by γ-ray spectroscopy utilizing the recoil distance Doppler shift method. The newly extracted transition strengths alongside ones of the decay of the 2+2 state were compared to the results of large-scale shell-model calculations using an effective interaction derived from the realistic CD-Bonn nucleon-nucleon potential. The comparison indicates the importance of the quadrupole isovector excitations in the valence shell for a fine tuning of the two-body matrix elements of the shell-model interaction.

Description

Phys. Rev. C 104, 024311 (2021) - Microscopic structure of the one-phonon 2+ states of 208Po

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