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Investigation of the nucleon distribution on the surface of radioactive xenon nuclei using antiprotons
/ Aberle, Oliver (CERN, 1211 Geneva 23, Switzerland) ; Aumann, Tom (Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany) ; Azaryan, Nikolay (CERN, 1211 Geneva 23, Switzerland) ; Bissell, Mark Lloyd (CERN, 1211 Geneva 23, Switzerland) ; Boine-Frankenheim, Oliver (Institut für Teilchenbeschleunigung und elektromagnetische Felder, Technische Universität Darmstadt, 64289 Darmstadt, Germany) ; Bonnes, Uwe (Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany) ; Butin, Francois (CERN, 1211 Geneva 23, Switzerland) ; Chiggiato, Paolo (CERN, 1211 Geneva 23, Switzerland) ; De Gersem, Herbert (Institut für Teilchenbeschleunigung und elektromagnetische Felder, Technische Universität Darmstadt, 64289 Darmstadt, Germany) ; De Oliveira, Rui (CERN, 1211 Geneva 23, Switzerland) et al.
CERN-INTC-2024-055 ; INTC-P-712.
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2024
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Creation and characterisation of multi-charged cerium beams at TRIUMF’s OLIS
/ Justus, P (U. Heidelberg (main) ; Heidelberg, Max Planck Inst.) ; Charles, C R J (TRIUMF ; Western Ontario U. ; Simon Fraser U.) ; Ames, F (TRIUMF) ; Jayamanna, K (TRIUMF) ; Malbrunot-Ettenauer, S (TRIUMF ; CERN)
A novel $^{140}$Ce$^{n+}$ stable ion beam was developed at TRIUMF’s Off-Line Ion Source (OLIS) facility for fundamental research into (i) astrophysical processes, and (ii) forming lanthanide molecules with O$_{2}$ gas and halogens. This first creation of a multi-charged $^{140}$Ce beam at OLIS is a successful chemical analog for actinide beams and molecule formation at TRIUMF’s TITAN facility for future electron dipole moment (EDM) measurements with rare radioactive thorium molecules..
2024 - 5 p.
- Published in : J. Phys. : Conf. Ser.: 2743 (2024) , no. 1, pp. 012055
Fulltext: PDF;
In : 20th International Conference on Ion Sources (ICIS 2023), Victoria, BC, Canada, 17 - 22 Sep 202, pp.012055
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Simulations of a cryogenic, buffer-gas filled Paul trap for low-emittance ion bunches
/ Lechner, S (CERN ; Vienna, Tech. U. ; McGill U.) ; Sels, S (CERN) ; Belosevic, I (TRIUMF) ; Buchinger, F (McGill U.) ; Fischer, P (Greifswald U.) ; Kanitz, C (Erlangen - Nuremberg U.) ; Lagaki, V (CERN ; Greifswald U.) ; Maier, F M (CERN ; Greifswald U.) ; Plattner, P (CERN ; Innsbruck U.) ; Schweikhard, L (Greifswald U.) et al.
Many experiments with pulsed ion beams benefit from or even require ion bunches with both small temporal width as well as small energy spread. To achieve optimal ion-beam preparation, a buffer-gas filled cryogenic Paul trap is being developed in the context of the Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy (MIRACLS). [...]
2024 - 13 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1065 (2024) 169471
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Electromagnetic moments of the odd-mass nickel isotopes $^{59-67}$Ni
/ Müller, P. (Darmstadt, Tech. U.) ; Kaufmann, S. (Darmstadt, Tech. U.) ; Miyagi, T. (Darmstadt, Tech. U. ; Heidelberg, Max Planck Inst. ; Darmstadt, EMMI) ; Billowes, J. (Manchester U.) ; Bissell, M.L. (Manchester U.) ; Blaum, K. (Darmstadt, EMMI) ; Cheal, B. (Liverpool U.) ; Garcia Ruiz, R.F. (CERN) ; Gins, W. (Leuven U.) ; Gorges, C. (Darmstadt, Tech. U.) et al.
The magnetic dipole and the spectroscopic quadrupole moments of the nuclear ground states in the odd-mass nickel isotopes $^{59-67}$Ni have been determined using collinear laser spectroscopy at the CERN-ISOLDE facility. They are compared to ab initio valence-space in-medium similarity renormalization group (VS-IMSRG) calculations including contributions of two-body currents as well as to shell-model calculations. [...]
arXiv:2405.13668.-
2024-05-22 - 10 p.
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Nuclear charge radii of germanium isotopes around $N$ = 40
/ Wang, S.J. (Peking U., SKLNPT) ; Kanellakopoulos, A. (Leuven U.) ; Yang, X.F. (Peking U., SKLNPT ; Leuven U.) ; Bai, S.W. (Peking U., SKLNPT) ; Billowes, J. (Manchester U.) ; Bissell, M.L. (Manchester U.) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Cheal, B. (Manchester U.) ; Devlin, C.S. (Manchester U.) ; Garcia Ruiz, R.F. (MIT ; CERN) et al.
Collinear laser spectroscopy measurements were performed on $^{68-74}$Ge isotopes ($Z = 32$) at ISOLDE-CERN, by probing the $4s^2 4p^2 \, ^3\!P_1 \rightarrow 4s^2 4p 5s \, ^3\!P_1^o$ atomic transition (269~nm) of germanium. Nuclear charge radii are determined via the measured isotope shifts, revealing a larger local variation than the neighboring isotopic chains. [...]
arXiv:2404.06046.-
2024-07-11 - 6 p.
Fulltext: Publication - PDF; 2404.06046 - PDF;
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Testing the mass separation capabilities of the new ISOLDE isobar separator
/ Nies, L (CERN, Switzerland) ; Fischer, P (University of Greifswald, Germany) ; Giesel, P F (University of Greifswald, Germany) ; Lange, D (MPIK, Germany) ; Lechner, S (CERN, Switzerland) ; Maier, F M (FRIB, USA) ; Malbrunot-Ettenauer, S (TRIUMF, Canada) ; Roitman, A (McGill University, Canada) ; Schmidt, A (Technical University of Darmstadt, Germany) ; Schweikhard, L (University of Greifswald, Germany) et al.
CERN-INTC-2024-043 ; INTC-I-279.
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2024.
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Electromagnetic moments of the antimony isotopes $^{112−133}$Sb
/ Lechner, S. (CERN ; Vienna, Tech. U., Atominst.) ; Miyagi, T. (Darmstadt, EMMI ; Heidelberg, Max Planck Inst. ; TRIUMF) ; Xu, Z.Y. (Leuven U. ; Tennessee U.) ; Bissell, M.L. (Manchester U. ; CERN) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Cheal, B. (Liverpool U.) ; Devlin, C.S. (Liverpool U.) ; Garcia Ruiz, R.F. (CERN) ; Ginges, J.S.M. (Queensland U.) ; Heylen, H. (CERN ; Heidelberg, Max Planck Inst.) et al.
Nuclear moments of the antimony isotopes $^{113-133}$Sb are measured by collinear laser spectroscopy and used to benchmark phenomenological shell-model and \textit{ab initio} calculations in the valence-space in-medium similarity renormalization group (VS-IMSRG). The shell-model calculations reproduce the electromagnetic moments over all Sb isotopes when suitable effective $g$-factors and charges are employed. [...]
arXiv:2311.01110.-
2023-10-26 - 9 p.
Fulltext: 2311.01110 - PDF; Publication - PDF;
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Nuclear charge radius of $^{26m}$Al and its implication for V$_{ud}$ in the quark-mixing matrix
/ Plattner, P. (CERN ; Innsbruck U. ; Heidelberg, Max Planck Inst.) ; Wood, E. (Liverpool U.) ; Ayoubi, L. Al (Jyvaskyla U.) ; Beliuskina, O. (Jyvaskyla U.) ; Bissell, M.L. (Manchester U. ; CERN) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Campbell, P. (Manchester U.) ; Cheal, B. (Liverpool U.) ; de Groote, R.P. (Jyvaskyla U.) ; Devlin, C.S. (Liverpool U.) et al.
Collinear laser spectroscopy was performed on the isomer of the aluminium isotope $^{26m}$Al. The measured isotope shift to $^{27}$Al in the $3s^{2}3p\;^{2}\!P^\circ_{3/2} \rightarrow 3s^{2}4s\;^{2}\!S_{1/2}$ atomic transition enabled the first experimental determination of the nuclear charge radius of $^{26m}$Al, resulting in $R_c$=\qty{3.130±.015}{\femto\meter}. [...]
arXiv:2310.15291.-
2023-11-27 - 7 p.
- Published in : Phys. Rev. Lett. 131 (2023) 222502
Fulltext: 2310.15291 - PDF; Publication - PDF;
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Increased beam energy as a pathway towards a highly selective and high-flux MR-ToF mass separator
/ Maier, F M (CERN ; Greifswald U.) ; Buchinger, F (McGill U.) ; Croquette, L (McGill U.) ; Fischer, P (Greifswald U.) ; Heylen, H (CERN) ; Hummer, F (CERN ; McGill U.) ; Kanitz, C (CERN) ; Kwiatkowski, A A (TRIUMF) ; Lagaki, V (CERN) ; Lechner, S (CERN ; McGill U.) et al.
Many experiments at radioactive ion beam (RIB) facilities suffer from isobaric contamination, i.e. unwanted
ions of similar mass. [...]
2023 - 17 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1056 (2023) 168545
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Opportunities for Fundamental Physics Research with Radioactive Molecules
/ Arrowsmith-Kron, Gordon (Michigan State U.) ; Athanasakis-Kaklamanakis, Michail (CERN ; Leuven U.) ; Au, Mia (CERN ; Mainz U.) ; Ballof, Jochen (CERN ; Michigan State U.) ; Berger, Robert (Philipps U. Marburg) ; Borschevsky, Anastasia (U. Groningen, VSI) ; Breier, Alexander A. (Kassel U.) ; Buchinger, Fritz (McGill U.) ; Budker, Dmitry (Darmstadt, GSI ; UC, Berkeley) ; Caldwell, Luke (JILA, Boulder ; U. Colorado, Boulder ; Colorado U.) et al.
Molecules containing short-lived, radioactive nuclei are uniquely positioned to enable a wide range of scientific discoveries in the areas of fundamental symmetries, astrophysics, nuclear structure, and chemistry. Recent advances in the ability to create, cool, and control complex molecules down to the quantum level, along with recent and upcoming advances in radioactive species production at several facilities around the world, create a compelling opportunity to coordinate and combine these efforts to bring precision measurement and control to molecules containing extreme nuclei. [...]
arXiv:2302.02165.-
2024-07-12 - 119 p.
- Published in : Rep. Prog. Phys. 87 (2024) 084301
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