Probing the quantum phase transition near N ≈ 60 via mass measurements of technetium isotopes
Year: 2025
Type: article
Abstract: The masses of neutron-rich $^{104--106}\mathrm{Tc}$ isotopes were measured using the JYFLTRAP double Penning trap and found to deviate from the Atomic Mass Evaluation 2020 by $\ensuremath{-}79(25)$, 40(12), and 94(41) keV, respectively. In the case of $^{105,106}\mathrm{Tc}$, the updated ${Q}_{\ensuremath{\beta}}$ values are in agreement with a previous JYFLTRAP measurement, disagreeing with the values from the mass evaluation. The new mass values result in a more linear trend in two-neutron separation energies indicating that technetium ($Z=43$) isotopes around $N\ensuremath{\approx}60$ are not a part of the island of shape coexistence around $^{100}\mathrm{Zr}_{60}$.
Source: Physical Review C
DOI: 10.1103/kksz-prtb
Authors: J. Ruotsalainen, A. Jaries, M. Stryjczyk, A. Kankainen, B. Andel, M. Araszkiewicz, O. Beliuskina, A. M. Bruce, S. Cannarozzo, S. Chinthakayala, S. Doshi, T. Eronen, A. Fijałkowska, L. M. Fraile, P. Garczyński, Z. Ge, D. Grigorova, G. Jaworski, A. Korgul, T. Krakowski, J. Kurpeta, S. Lalkovski, M. Llanos Expósito, I. D. Moore, L. M. Motilla, M. Mougeot, H. Penttilä, A. Raggio, W. Rattanasakuldilok, J. Saren, K. Solak
Institutions: University of Jyväskylä, Max Planck Society, Max Planck Institute for Nuclear Physics, Institut Laue-Langevin, Comenius University Bratislava, National Centre for Nuclear Research, University of Warsaw, University of Brighton, Uppsala University, Grand Accélérateur National d'Ions Lourds, Universidad Complutense de Madrid, Sofia University "St. Kliment Ohridski"
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: European Commission, Academy of Finland, Universidad Complutense de Madrid, Bulgarian National Science Fund, Narodowe Centrum Nauki, Jyväskylän Yliopisto, Agentúra na Podporu Výskumu a Vývoja, Vedecká Grantová Agentúra MŠVVaŠ SR a SAV, Horizon 2020 Framework Programme, HORIZON EUROPE Framework Programme, Science and Technology Facilities Council, Horizon 2020, Agencia Estatal de Investigación, Väisälän Rahasto
Awards: G1077405606, G1113643136, G1276317268, G1601652784, G1673570638, G1874176281, G2001806450, G2057805852, G206992164, G2188020438, G2499651546, G2566934999, G2757661257, G3345895242, G34346518, G3925630030, G4188552653, G4201253904, Jadrová štruktúra exotických izotopov veľmi ťažkých prvkov, G5030663475, G5110527184, G522478768, G5238677790, G5646078189, Heavy Exotic Nuclei for Nuclear Astrophysics (HENNA), G5923730219, G6281504974, Zriedkavé rozpady a štruktúra exotických izotopov, G6948331134, Laser Ionization and Spectroscopy of Actinide elements, G7128194990, G721324295, G7393302590, G7628805400, G7671084252, G7675456930, G7984235579, EUROpean Laboratories for Accelerator Based Science, G8296710777, G8512683158, Mass measurements of exotic N=Z nuclei (up to 100Sn) and the vicinity for nuclear physics and nuclear astrophysics studies, G961664842
OpenAlex ID: W4416935928