“Stapler” mechanism for a dipole band in 79Se
Date
2019-10-24
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Abstract
The spectroscopy of 79 Se is studied via the 82 Se(α, α3n)79Se fusion-evaporation reaction. A negative-parity magnetic dipole band in 79Se is established for the first time. Based on the calculations by the self-consistent tilted axis cranking covariant density functional theory, this new dipole band can be classified as a “stapler” band, which has a relatively stable symmetric prolate deformation as a function of rotational frequency. Hence, it is demonstrated that the stapler bands exist not only in the oblate and triaxial nuclei, but also in prolate nuclei. By examining the angular momentum coupling, it is found that the five valence nucleons in the high-j orbitals play a major role in the closing of the stapler.
Description
CITATION: Li, C. G. et al. 2019. “Stapler” mechanism for a dipole band in 79Se. Physical Review C, 100(4). doi:10.1103/PhysRevC.100.044318
The original publication is available at https://journals.aps.org/prc/
The original publication is available at https://journals.aps.org/prc/
Keywords
Chemical reaction, Magnetic dipoles, Selenium radioisotope -- Spectroscopic imaging, Nuclear fusion, Density functionals, Nuclear shapes, Angular momentum (Nuclear physics)
Citation
Li, C. G. et al. 2019. “Stapler” mechanism for a dipole band in 79Se. Physical Review C, 100(4). doi:10.1103/PhysRevC.100.044318