학술논문
Binding energies of ground and isomeric states in neutron-rich ruthenium isotopes: measurements at JYFLTRAP and comparison to theory
Document Type
Working Paper
Author
Hukkanen, M.; Ryssens, W.; Ascher, P.; Bender, M.; Eronen, T.; Grévy, S.; Kankainen, A.; Stryjczyk, M.; Ayoubi, L. Al; Ayet, S.; Beliuskina, O.; Delafosse, C.; Ge, Z.; Gerbaux, M.; Gins, W.; Husson, A.; Jaries, A.; Kujanpää, S.; Mougeot, M.; Nesterenko, D. A.; Nikas, S.; Penttilä, H.; Pohjalainen, I.; Raggio, A.; Reponen, M.; Rinta-Antila, S.; de Roubin, A.; Ruotsalainen, J.; Virtanen, V.; Weaver, A. P.
Source
Physical Review C 108, 064315 (2023)
Subject
Language
Abstract
We report on precision mass measurements of $^{113,115,117}$Ru performed with the JYFLTRAP double Penning trap mass spectrometer at the Accelerator Laboratory of University of Jyv\"askyl\"a. The phase-imaging ion-cyclotron-resonance technique was used to resolve the ground and isomeric states in $^{113,115}$Ru and enabled for the first time a measurement of the isomer excitation energies, $E_x(^{113}$Ru$^{m})=100.5(8)$ keV and $E_x(^{115}$Ru$^{m})=129(5)$ keV. The ground state of $^{117}$Ru was measured using the time-of-flight ion-cyclotron-resonance technique. The new mass-excess value for $^{117}$Ru is around 36 keV lower and 7 times more precise than the previous literature value. With the more precise ground-state mass values, the evolution of the two-neutron separation energies is further constrained and a similar trend as predicted by the BSkG1 model is obtained up to the neutron number $N=71$.
Comment: 12 pages, 9 figures, submitted to Physical Review C
Comment: 12 pages, 9 figures, submitted to Physical Review C