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1.
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 Fulltext: PDF;
2.
Radiative Decay of the $^{229m}$Th Nuclear Clock Isomer in Different Host Materials / Pineda, S.V. (Leuven U.) ; Chhetri, P. (Leuven U. ; Mainz U.) ; Bara, S. (Leuven U.) ; Elskens, Y. (Leuven U.) ; Casci, S. (Leuven U.) ; Alexandrova, A.N. (UCLA, Los Angeles (main)) ; Au, M. (CERN) ; Athanasakis-Kaklamanakis, M. (Leuven U. ; CERN ; Imperial Coll., London) ; Bartokos, M. (Vienna, Tech. U., Atominst.) ; Beeks, K. (Ecole Polytechnique, Lausanne) et al.
A comparative vacuum ultraviolet spectroscopy study conducted at ISOLDE-CERN of the radiative decay of the $^{229m}$Th nuclear clock isomer embedded in different host materials is reported. [...]
arXiv:2408.12309.
- 13.
Fulltext
3.
Detailed structure of Sn131 populated in the β decay of isomerically purified In131 states / IDS Collaboration
The excited structure of the single-hole nucleus Sn131 populated by the β− decay of In131 was investigated in detail at the ISOLDE facility at CERN. This new experiment took advantage of isomeric purification capabilities provided by resonant ionization, making it possible to independently study the decay of each isomer for the first time. [...]
2024 - 19 p. - Published in : Phys. Rev. C 110 (2024) 014328 Fulltext: PDF;
4.
On the nature of yrast states in neutron-rich polonium isotopes / IDS Collaboration
Polonium isotopes having two protons above the shell closure at $Z=82$ show a wide variety of low-lying high-spin isomeric states across the whole chain. [...]
arXiv:2407.03839.
- 6.
Fulltext
5.
β decay of the ground state and of a low-lying isomer in Bi216 / IDS Collaboration
A detailed β-decay study of the low- and high-spin states in Bi216 has been performed at the ISOLDE Decay Station at the CERN-ISOLDE facility. In total, 48 new levels and 83 new transitions in the β-decay daughter Po216 were identified. [...]
2024 - 18 p. - Published in : Phys. Rev. C 109 (2024) 064321 Fulltext: PDF;
6.
Nuclear Level Density and $\gamma$-ray Strength Function of $^{67}\mathrm{Ni}$ and the impact on the i-process / ISOLDE Collaboration
Proton-$\gamma$ coincidences from $(\mathrm{d},\mathrm{p})$ reactions between a $^{66}\mathrm{Ni}$ beam and a deuterated polyethylene target have been analyzed with the inverse-Oslo method to find the nuclear level density (NLD) and $\gamma$-ray strength function ($\gamma$SF) of $^{67}\mathrm{Ni}$. [...]
arXiv:2307.07153.
- 16.
Fulltext
7.
Magnetic moments of thallium isotopes in the vicinity of magic N = 126 / ISXXX Collaboration
- Published in : Physics Letters B849 (2024) 138452 Fulltext: PDF;
8.
A setup for vacuum-ultraviolet spectroscopy of the $^{229}$Th low-energy isomer / Kraemer, Sandro (KU Leuven ; LMU, Garching) ; Chhetri, Premaditya (KU Leuven) ; Bara, Silvia (KU Leuven) ; Claessens, Arno (KU Leuven) ; De Witte, Hilde (KU Leuven) ; Elskens, Yens (KU Leuven) ; Ferrer, Rafael (KU Leuven) ; Kudryavtsev, Yuri (KU Leuven) ; Sels, Simon (KU Leuven) ; Van Den Bergh, Paul (KU Leuven) et al.
The ground-state transition of the low-energy isomer in $^{229}$Th has been proposed as the basis for the development of a novel optical clock as a tool for fundamental-physics studies. Vacuum-ultraviolet studies of the 𝛽-decay of 229Ac recently enabled to measure the de-excitation energy of the isomer with a sevenfold improvement in precision compared to previous results by directly observing photons from the isomer’s radiative decay. [...]
2023 - 3 p. - Published in : Nucl. Instrum. Methods Phys. Res., B 542 (2023) 1-3
In : 19th International Conference on Electromagnetic Isotope Separators and Related Topics (EMIS 2022), Daejeon, Korea, 3 - 7 Oct 2022
9.
Coulomb excitation of Zn74,76 / ISOLDE Collaboration
The first experiment using radioactive beams post-accelerated by the HIE-ISOLDE facility has enabled to obtain a precise set of B(E2) transition probabilities in neutron-rich Zn74,76 isotopes. The resulting B(E2; 21+→01+) values are consistent with those determined in earlier REX-ISOLDE measurements. [...]
2023 - 17 p. - Published in : Phys. Rev. C 108 (2023) 044305 Fulltext: PDF;
10.
Evidence of nonstatistical neutron emission following β decay near doubly magic Sn132 / IDS Collaboration
Models of the β-delayed neutron emission (βn) assume that neutrons are emitted statistically via an intermediate compound nucleus post β decay. Evidence to the contrary was found in an In134β-decay experiment carried out at ISOLDE CERN. [...]
2023 - 9 p. - Published in : Phys. Rev. C 108 (2023) 024311 Fulltext: PDF;

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