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β- and α-decay spectroscopy of Au182
/ ISOLDE Decay Station Collaboration
An α- and β-decay study of a pure source of laser-ionized and mass-separated Au182 (Z = 79, N = 103) was carried out at the ISOLDE Decay Station at the ISOLDE-CERN facility. Detailed γ-γ analysis following EC/β+ decay of Au182 was performed, and the level scheme of daughter nuclide Pt182 was considerably extended via the identification of 125 new levels and 336 new γ-ray transitions. [...]
2025 - 16 p.
- Published in : Phys. Rev. C 112 (2025) 024328
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New upper limits for β-delayed fission probabilities of Fr230,232 and Ac230,232,234
/ Bara, S (Leuven U.) ; Algora, A (Valencia U., IFIC) ; Andel, B (Comenius U.) ; Andreyev, A N (York U., England) ; Antalic, S (Comenius U.) ; Bark, R A (iThemba LABS) ; Borge, M J G (Madrid, Inst. Estructura Materia) ; Camaiani, A (Leuven U. ; INFN, Florence ; U. Florence (main)) ; Cocolios, T E (Leuven U.) ; Cubiss, J G (Edinburgh U. ; York U., England) et al.
The process of β-delayed fission (βDF) of Fr230,232 and Ac230,232,234 was studied in an experiment performed at the ISOLDE facility at CERN. As no fission fragments were observed for any of the nuclei investigated, upper limits for their βDF probability (PβDF) were determined. [...]
2025 - 11 p.
- Published in : Phys. Rev. C 111 (2025) 065803
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The $^{76}$Cu conundrum remains unsolved
/ IDS Collaboration
Near the doubly-magic nucleus \nuc{Ni}{78} ($Z=28$, $N=50$), there has been a decades-long debate on the existence of a long-lived isomer in \nuc{Cu}{76}. A recent mass measurement claimed to have settled the debate, by measuring the energy of the isomer and shedding light on the structure of the nucleus. [...]
arXiv:2505.06400.-
2025-05-09
- Published in : Phys. Lett. B 9 (2025) 139551
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Spectroscopy of $^{187}$Tl: shape coexistence
/ Guo, C Y (Peking U., SKLNPT) ; Zhang, W Q (Lanzhou, Inst. Modern Phys. ; Beijing, GUCAS) ; Huang, H (Lanzhou, Inst. Modern Phys. ; Beijing, GUCAS) ; Zhang, S Q (Peking U., SKLNPT) ; Li, Z H (Peking U., SKLNPT) ; Liu, Z (Lanzhou, Inst. Modern Phys. ; Beijing, GUCAS) ; Hua, H (Peking U., SKLNPT) ; Luo, D W (Peking U., SKLNPT) ; Wu, H Y (Peking U., SKLNPT ; Beijing, Inst. Atomic Energy) ; Andreyev, A N (York U., England ; Jefferson Lab ; JAEA, Ibaraki) et al.
The prompt and delayed $\gamma $-ray spectra of $^{187}$Tl was studied via the $^{142}$Nd($^{50}$Cr, 3p2n)$^{187}$Tl fusion-evaporation reaction at a beam energy of 255 MeV. An enhanced level scheme of $^{187}$Tl was established. [...]
2024 - 10 p.
- Published in : Eur. Phys. J. A 60 (2024) 165
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Charge radii of thallium isotopes near the N=126 shell closure
/ IDS Collaboration
The changes in the mean-squared charge radius of Tlg209 (N=128) and Tlm207 (N=126) relative to Tl205 have been measured for the first time using the in-source laser resonance-ionization spectroscopy technique with the Laser Ion Source and Trap (LIST) at ISOLDE (CERN). The application of the LIST suppresses the dominant background from isobaric francium isotopes and allows access to thallium nuclides with A⩾207. [...]
2024 - 9 p.
- Published in : Phys. Rev. C 110 (2024) 034315
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First online laser spectroscopy study of promethium isotopes
/ Chrysalidis, Katerina (CERN, CH-1211 Geneva 23, Switzerland) ; Cubiss, James (School of Physics, Engineering and Technology, University of York, York, YO10 5DD, U.K. and School of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3FD, U.K.) ; Wessolek, Julius (CERN, CH-1211 Geneva 23, Switzerland and Department of Physics, University of Manchester, Manchester, U.K.) ; Andreyev, Andrei (School of Physics, Engineering and Technology, University of York, York, YO10 5DD, U.K.) ; Lange, Daniel (Max-Planck-Institute for Nuclear Physics, Heidelberg, Germany)
CERN-INTC-2024-070 ; INTC-P-722.
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2024 - mult..
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Exploring octupole collectivity in neutron-rich $A=217-226$ astatine and radon nuclei, using decay-tagged in-source laser spectroscopy.
/ Cubiss, James (School of Physics, Engineering and Technology, University of York, York, YO10 5DD, U.K. and School of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3FD, U.K.) ; Andreyev, Andrei (School of Physics, Engineering and Technology, University of York, York, YO10 5DD, U.K.) ; Lange, Daniel (Max-Planck-Institute for Nuclear Physics, Heidelberg, Germany)
CERN-INTC-2024-068 ; INTC-P-720.
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2024 - mult..
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