학술논문
Measurements of binding energies and electromagnetic moments of silver isotopes – A complementary benchmark of density functional theory
Document Type
article
Author
R.P. de Groote; D.A. Nesterenko; A. Kankainen; M.L. Bissell; O. Beliuskina; J. Bonnard; P. Campbell; L. Canete; B. Cheal; C. Delafosse; A. de Roubin; C.S. Devlin; J. Dobaczewski; T. Eronen; R.F. Garcia Ruiz; S. Geldhof; W. Gins; M. Hukkanen; P. Imgram; R. Mathieson; Á. Koszorús; I.D. Moore; I. Pohjalainen; M. Reponen; B. van den Borne; M. Vilén; S. Zadvornaya
Source
Physics Letters B, Vol 848, Iss , Pp 138352- (2024)
Subject
Language
English
ISSN
0370-2693
Abstract
We report on a set of high-precision measurements of nuclear binding and excitation energies, as well as nuclear spins, magnetic dipole and electric quadrupole moments of neutron-rich silver isotopes, 113−123Ag. The measurements were performed using the JYFLTRAP mass spectrometer and the collinear laser spectroscopy beamline at the Ion Guide Isotope Separator On-Line (IGISOL) facility. For the first time, we can firmly establish the ordering of the long-lived Iπ=1/2−,7/2+ states in these isotopes, and pin down the inversion of these two levels at either A=121(N=74) or A=123(N=76). We compare these findings to calculations performed with density functional theory (DFT), from which we establish the crucial role that the spin-orbit strength and time-odd mean fields play in the simultaneous description of electromagnetic moments and nuclear binding.