Microscopic structure of the one-phonon 2+ states of Po208

D. Kalaydjieva et al.
Phys. Rev. C 104, 024311 – Published 6 August 2021

Abstract

The lifetimes of the 21+ and 41+ states of Po208 were measured in the α-transfer reaction Pb204(C12,Be8)Po208 by γ-ray spectroscopy utilizing the recoil distance Doppler shift method. The newly extracted transition strengths alongside ones of the decay of the 22+ 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.

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  • Received 17 May 2021
  • Accepted 15 July 2021

DOI:https://doi.org/10.1103/PhysRevC.104.024311

©2021 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

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Vol. 104, Iss. 2 — August 2021

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