Evolution from quasivibrational to quasirotational structure in 155Tm and yrast 27/2− to 25/2− energy anomaly in the A ≈ 150 mass region
Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Abstract
Excited states in 155Tm have been populated via the reaction 144Sm(16O, p4n)155Tm at a beam energy of 118
MeV. The ground-state band has been extended and a new side band of the ground-state band is identified. E-GOS
curves and potential energy surface calculations are employed to discuss the structure evolution of the ground-state
band. The newly observed side band in 155Tm is discussed based on the spin/energy systematics. In particular,
the phenomenon of seniority inversion is proposed in 155Tm, and a systematic study of this phenomenon in the
A ≈ 150 mass region is performed.
Description
CITATION: Liu, L., et al. 2018. Evolution from quasivibrational to quasirotational structure in 155Tm and yrast 27/2− to 25/2− energy anomaly in the A ≈ 150 mass region. Physical Review C, 97(4):044306, doi:10.1103/PhysRevC.97.044306.
The original publication is available at https://journals.aps.org/prc
The original publication is available at https://journals.aps.org/prc
Keywords
Isotopes, Thulium, Samarium, Lutetium, Nuclear physics -- Research, Energy anomaly
Citation
Liu, L., et al. 2018. Evolution from quasivibrational to quasirotational structure in 155Tm and yrast 27/2− to 25/2− energy anomaly in the A ≈ 150 mass region. Physical Review C, 97(4):044306, doi:10.1103/PhysRevC.97.044306