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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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Nuclear Charge Radii of the Nickel Isotopes $^{58-68,70}$Ni
/ Malbrunot-Ettenauer, S. (CERN) ; Kaufmann, S. (Darmstadt, Tech. U.) ; Bacca, S. (Mainz U., Inst. Kernchem. ; Helmholtz Inst., Mainz) ; Barbieri, C. (Surrey U. ; Milan U. ; INFN, Milan) ; Billowes, J. (Manchester U.) ; Bissell, M.L. (Manchester U.) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Cheal, B. (Liverpool U.) ; Duguet, T. (IRFU, Saclay) ; Ruiz, R.F. Garcia (CERN ; Manchester U.) et al.
Collinear laser spectroscopy is performed on the nickel isotopes $^{58-68,70}$Ni, using a time-resolved photon counting system. From the measured isotope shifts, nuclear charge radii $R_c$ are extracted and compared to theoretical results. [...]
arXiv:2112.03382.-
2022-01-14 - 8 p.
- Published in : Phys. Rev. Lett. 128 (2022) 022502
Fulltext: PhysRevLett.128.022502 - PDF; 2112.03382 - PDF;
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3.
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Nuclear quadrupole moments and charge radii of the "_{51}"Sb isotopes via collinear laser spectroscopy
/ Xu, Zhengyu (KU Leuven, Instituut voor Kern-en Stralingsfysica, B-3001 Leuven, Belgium) ; Yordanov, Deyan (Institute de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France) ; Balabanski, dimiter (ELI-NP, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 077125 Magurele, Romania) ; Billowes, Jonathan (School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK) ; Bissell, Mark (School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK) ; Blaum, Klaus (Max-Plank-Institut für Kernphysik, D-69117 Heidelberg, Germany) ; Cheal, Bradley (Oliver Lodge Laboratory, Oxford Street, University of Liverpool, L69 7ZE, United Kingdom) ; Malbrunot, Stephan (Physics Department, CERN, CH-1211 Geneva 23, Switzerland) ; Franchoo, Serge (Institute de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France) ; Garcia Ruiz, Ronald Fernando (School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK) et al.
CERN-INTC-2017-010 ; INTC-CLL-028.
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2017.
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4.
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Nuclear quadrupole moments and charge radii of the $_{51}$Sb isotopes via collinear laser spectroscopy
/ Xu, Zhengyu (KU Leuven, Instituut voor Kern-en Stralingsfysica, B-3001 Leuven, Belgium) ; Yordanov, Deyan (Institute de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France) ; Balabanski, dimiter (ELI-NP, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 077125 Magurele, Romania) ; Billowes, Jonathan (School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK) ; Bissell, Mark (School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK) ; Blaum, Klaus (Max-Plank-Institut für Kernphysik, D-69117 Heidelberg, Germany) ; Cheal, Bradley (Oliver Lodge Laboratory, Oxford Street, University of Liverpool, L69 7ZE, United Kingdom) ; Malbrunot, Stephan (Physics Department, CERN, CH-1211 Geneva 23, Switzerland) ; Franchoo, Serge (Institute de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France) ; Garcia Ruiz, Ronald Fernando (School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK) et al.
CERN-INTC-2016-054 ; INTC-P-484.
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2016.
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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.
Fulltext: PDF;
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Charge radii, moments, and masses of mercury isotopes across the $N=126$ shell closure
/ Goodacre, T. Day (Manchester U. ; TRIUMF ; CERN) ; Afanasjev, A.V. (Mississippi State U.) ; Barzakh, A.E. (St. Petersburg, INP) ; Nies, L. (CERN ; Greifswald U.) ; Marsh, B.A. (CERN) ; Sels, S. (CERN ; Leuven U.) ; Perera, U.C. (Mississippi State U.) ; Ring, P. (Munich, Tech. U.) ; Wienholtz, F. (CERN ; Greifswald U.) ; Andreyev, A.N. (York U., England ; JAERI, Tokai) et al.
Combining laser spectroscopy in a Versatile Arc Discharge and Laser Ion Source, with Penning-trap mass spectrometry at the CERN-ISOLDE facility, this work reports on mean-square charge radii of neutron-rich mercury isotopes across the $N = 126$ shell closure, the electromagnetic moments of $^{207}$Hg and more precise mass values of $^{206-208}$Hg. The odd-even staggering (OES) of the mean square charge radii and the kink at $N = 126$ are analyzed within the framework of covariant density functional theory (CDFT), with comparisons between different functionals to investigate the dependence of the results on the underlying single-particle structure. [...]
arXiv:2111.10468.-
2021-11-30 - 20 p.
- Published in : Phys. Rev. C 104 (2021) 054322
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Electromagnetic moments of scandium isotopes and $N=28$ isotones in the distinctive $0f_{7/2}$ orbit
/ Bai, S.W. (Peking U., SKLNPT) ; Koszorús, Á. (Leuven U. ; Liverpool U.) ; Hu, B.S. (Peking U., SKLNPT ; TRIUMF) ; Yang, X.F. (Peking U., SKLNPT) ; Billowes, J. (Manchester U.) ; Binnersley, C.L. (Manchester U.) ; Bissell, M.L. (Manchester U.) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Campbell, P. (Manchester U.) ; Cheal, B. (Liverpool U.) et al.
The electric quadrupole moment of $^{49}$Sc was measured by collinear laser spectroscopy at CERN-ISOLDE to be $Q_{\rm s}=-0.159(8)$$e$b, and a nearly tenfold improvement in precision was reached for the electromagnetic moments of $^{47,49}$Sc. The single-particle behavior and nucleon-nucleon correlations are investigated with the electromagnetic moments of $Z=21$ isotopes and $N=28$ isotones as valence neutrons and protons fill the distinctive $0f_{7/2}$ orbit, respectively, located between magic numbers, 20 and 28. [...]
arXiv:2203.09111.-
2022-04-02 - 8 p.
- Published in : Phys. Lett. B 829 (2022) 137064
Fulltext: Publication - PDF; 2203.09111 - PDF;
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High-resolution laser spectroscopy of nickel isotopes
/ Cheal, Bradley (School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL) ; Billowes, Jon (School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL) ; Bissell, Mark (Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium) ; Blaum, Klaus (Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg, Germany) ; Campbell, Paul (School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL) ; Flanagan, Kieran (School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL) ; Garcia-Ruiz, Ronald (Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium) ; Geppert, Christopher (GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany) ; Heylen, Hanne (Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium) ; Kowalska, Magda (Physics Department, CERN, CH-1211 Geneva 23, Switzerland) et al.
CERN-INTC-2013-007 ; INTC-P-373.
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2013.
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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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Radiative lifetime of the A 2Π1/2 state in RaF with relevance to laser cooling
/ ISOLDE Collaboration
The radiative lifetime of the $A$$^2 \Pi_{1/2}$ (v=0) state in radium monofluoride (RaF) is measured to be 35(1) ns. The lifetime of this state and the related decay rate $\Gamma = 2.86(8) \times 10^7$$s^{-1}$ are of relevance to the laser cooling of RaF via the optically closed $A$$^2 \Pi_{1/2} \leftarrow X$$^2\Sigma_{1/2}$ transition, which makes the molecule a promising probe to search for new physics. [...]
arXiv:2403.09336.-
2024-07-22 - 8 p.
- Published in : Phys. Rev. A 110 (2024) L010802
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