Abstract
Low-lying dipole states in the singly closed-shell nucleus were studied via nuclear resonance fluorescence experiments using a quasimonoenergetic, linearly polarized photon beam. The parity quantum numbers of the dipole states were determined by the intensity asymmetry of resonantly scattered rays with respect to the polarization plane of the incident photon beam. The electric and magnetic dipole ( and ) strengths at excitation energies between 5.9 and 9.8 MeV were obtained based on dipole strengths taken from literature. The and strength distributions were compared with large-scale shell-model predictions in the shell using the SDPFSDG-MU interaction.
- Received 27 April 2023
- Revised 18 October 2023
- Accepted 7 November 2023
DOI:https://doi.org/10.1103/PhysRevC.109.014302
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