Measurements of binding energies and electromagnetic moments of silver isotopes – A complementary benchmark of density functional theory

TY - JOUR

T1 - Measurements of binding energies and electromagnetic moments of silver isotopes – A complementary benchmark of density functional theory

AU - Groote, R.P. de

AU - Nesterenko, D.A.

AU - Kankainen, A.

AU - Bissell, M.L.

AU - Beliuskina, O.

AU - Bonnard, J.

AU - Campbell, P.

AU - Canete, L.

AU - Cheal, B.

AU - Delafosse, C.

AU - Roubin, A. de

AU - Devlin, C.S.

AU - Dobaczewski, J.

AU - Eronen, T.

AU - Ruiz, R.F. Garcia

AU - Geldhof, S.

AU - Gins, W.

AU - Hukkanen, M.

AU - Imgram, P.

AU - Mathieson, R.

AU - Koszorús, Á.

AU - Moore, I.D.

AU - Pohjalainen, I.

AU - Reponen, M.

AU - Borne, B. van den

AU - Vilén, M.

AU - Zadvornaya, S.

N1 - © 2023 The Author(s).

PY - 2024/1/1

Y1 - 2024/1/1

N2 - 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.

AB - 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.

U2 - 10.1016/j.physletb.2023.138352

DO - 10.1016/j.physletb.2023.138352

M3 - Letter

SN - 0370-2693

VL - 848

JO - Physics Letters B

JF - Physics Letters B

M1 - 138352

ER -