Microscopic analysis of dipole electric and magnetic strengths in 156Gd
Nesterenko VO, Vishnevskiy PI, Reinhard PG, Repko A, Kvasil J (2024)
Publication Type: Journal article
Publication year: 2024
Journal
Book Volume: 60
Article Number: 28
Journal Issue: 2
DOI: 10.1140/epja/s10050-024-01251-4
Abstract
The dipole electric (E1) and magnetic (M1) strengths in strongly deformed 156Gd are investigated within a fully self-consistent Quasiparticle Random Phase Approximation (QRPA) with Skyrme forces SVbas, SLy6 and SG2. We inspect, on the same theoretical footing, low-lying dipole states and the isovector giant dipole resonance in E1 channel and the orbital scissors resonance as well as the spin-flip giant resonance (SFGR) in M1 channel. Besides, E1 toroidal mode and low-energy spin-flip M1 excitations are considered. The deformation splitting and dipole-octupole coupling of electric excitations are analyzed. The origin of SFGR gross structure, impact of the residual interaction and interference of orbital and spin contributions to SFGR are discussed. The effect of the central exchange J2-term from the Skyrme functional is demonstrated. The calculations show a satisfactory agreement with available experimental data, except for the recent NRF measurements of M. Tamkas et al for M1 strength at 4–6 MeV, where, in contradiction with our calculations and previous (p,p′) data, almost no M1 strength was observed.
Authors with CRIS profile
Involved external institutions
Univerzita Karlova v Praze / Charles University in Prague
Czech Republic (CZ)
Joint Institute for Nuclear Research (JINR) / Объединённый институт ядерных исследований (ОИЯИ)
Russian Federation (RU)
Institute of Physics Slovak Academy of Sciences
Slovakia (SK)
Czech Republic (CZ)
Joint Institute for Nuclear Research (JINR) / Объединённый институт ядерных исследований (ОИЯИ)
Russian Federation (RU)
Institute of Physics Slovak Academy of Sciences
Slovakia (SK)
How to cite
APA:
Nesterenko, V.O., Vishnevskiy, P.I., Reinhard, P.-G., Repko, A., & Kvasil, J. (2024). Microscopic analysis of dipole electric and magnetic strengths in 156Gd. European Physical Journal A, 60(2). https://dx.doi.org/10.1140/epja/s10050-024-01251-4
MLA:
Nesterenko, V. O., et al. "Microscopic analysis of dipole electric and magnetic strengths in 156Gd." European Physical Journal A 60.2 (2024).
BibTeX: Download