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Evidence of a sudden increase in the nuclear size of proton-rich silver-96
/ Reponen, M (Jyvaskyla U.) ; de Groote, R P (Jyvaskyla U.) ; Al Ayoubi, L (Jyvaskyla U. ; IJCLab, Orsay) ; Beliuskina, O (Jyvaskyla U.) ; Bissell, M L (Manchester U.) ; Campbell, P (Manchester U.) ; Cañete, L (Surrey U.) ; Cheal, B (Liverpool U.) ; Chrysalidis, K (CERN) ; Delafosse, C (Jyvaskyla U. ; IJCLab, Orsay) et al.
Understanding the evolution of the nuclear charge radius is one of the long-standing challenges for nuclear theory. Recently, density functional theory calculations utilizing Fayans functionals have successfully reproduced the charge radii of a variety of exotic isotopes. [...]
2021 - 8 p.
- Published in : Nature Commun. 12 (2021) 4596
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Branching ratio of the super-allowed $\beta$ decay of $^{10}$C
/ Blank, B. (CENBG, Gradignan) ; Aouadi, M. (CENBG, Gradignan) ; Ascher, P. (CENBG, Gradignan) ; Gerbaux, M. (CENBG, Gradignan) ; Giovinazzo, J. (CENBG, Gradignan) ; Grévy, S. (CENBG, Gradignan) ; Kurtukian Nieto, T. (CENBG, Gradignan) ; Dunlop, M.R. (Guelph U.) ; Dunlop, R. (Guelph U.) ; Laffoley, A.T. (Guelph U.) et al.
In an experiment performed at the ISOLDE facility of CERN, the super-allowed beta-decay branching ratio of 10C was determined with a high-precision single-crystal germanium detector. In order to evaluate the contribution of the pile-up of two 511 keV gamma quanta to one of the gamma-ray peaks of interest at 1021.7 keV, data were not only taken with 10C, but also with a 19Ne beam. [...]
arXiv:2004.02559.-
2020-05-31 - 9 p.
- Published in : Eur. Phys. J. A 56 (2020) 156
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Simultaneous measurements of the $\beta$ -neutrino angular correlation in $^{32}$Ar pure Fermi and pure Gamow-Teller transitions using $\beta$ -proton coincidences
/ Araujo-Escalona, V. (Leuven U.) ; Atanasov, D. (Leuven U. ; CERN) ; Fléchard, X. (ENSICAEN) ; Alfaurt, P. (CENBG, Gradignan) ; Ascher, P. (CENBG, Gradignan) ; Blank, B. (CENBG, Gradignan) ; Daudin, L. (CENBG, Gradignan) ; Gerbaux, M. (CENBG, Gradignan) ; Giovinazzo, J. (CENBG, Gradignan) ; Grévy, S. (CENBG, Gradignan) et al.
We report first time measurements of the beta-neutrino angular correlation based on the kinetic energy shift of protons emitted in parallel or anti-parallel directions with respect to the positron in the beta decay of $^{32}$Ar. This proof of principle experiment provided simultaneous measurements for the superallowed 0$^+$~$\rightarrow$~0$^+$ transition followed by a 3356~keV proton emission and for a Gamow-Teller transition followed by a 2123~keV proton emission. [...]
arXiv:1906.05135.-
2020-05-14 - 7 p.
- Published in : Phys. Rev. C 101 (2020) 055501
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Measurements of binding energies and electromagnetic moments of silver isotopes – A complementary benchmark of density functional theory
/ de Groote, R P (Jyvaskyla U. ; Leuven U.) ; Nesterenko, D A (Jyvaskyla U.) ; Kankainen, A (Jyvaskyla U.) ; Bissell, M L (Manchester U.) ; Beliuskina, O (Jyvaskyla U.) ; Bonnard, J (York U., England ; IP2I, Lyon) ; Campbell, P (Manchester U.) ; Canete, L (Jyvaskyla U.) ; Cheal, B (Liverpool U.) ; Delafosse, C (Jyvaskyla U.) et al.
We report on a set of high-precision measurements of nuclear binding and excitation energies, as well as nuclear spins, magnetic dipole and electric quadrupole moments of neutron-rich silver isotopes, 113−123Ag. The measurements were performed using the JYFLTRAP mass spectrometer and the collinear laser spectroscopy beamline at the Ion Guide Isotope Separator On-Line (IGISOL) facility. [...]
2023 - 6 p.
- Published in : Phys. Lett. B 848 (2024) 138352
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Deformation and mixing of coexisting shapes in neutron-deficient polonium isotopes
/ Kesteloot, N (KU Leuven, Dept. Phys. Astron. ; SCK-CEN, Mol) ; Bastin, B (KU Leuven, Dept. Phys. Astron. ; GANIL) ; Gaffney, L P (KU Leuven, Dept. Phys. Astron. ; Liverpool U.) ; Wrzosek-Lipska, K (KU Leuven, Dept. Phys. Astron. ; Warsaw U., Heavy Ion Lab) ; Auranen, K (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Bauer, C (Darmstadt, Tech. Hochsch.) ; Bender, M (CENBG, Gradignan) ; Bildstein, V (Munich, Tech. U.) ; Blazhev, A (Cologne U.) ; Bönig, S (Darmstadt, Tech. Hochsch.) et al.
Coulomb-excitation experiments are performed with postaccelerated beams of neutron-deficient Po196,198,200,202 isotopes at the REX-ISOLDE facility. A set of matrix elements, coupling the low-lying states in these isotopes, is extracted. [...]
2015 - 17 p.
- Published in : Phys. Rev. C 92 (2015) 054301
APS Open Access article: PDF;
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Refining the nuclear mass surface with the mass of $^{103}$Sn
/ Nies, L. (CERN ; Greifswald U.) ; Atanasov, D. (LP2I, Bordeaux) ; Athanasakis-Kaklamanakis, M. (CERN ; Leuven U.) ; Au, M. (CERN ; Mainz U.) ; Bernerd, C. (CERN) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Chrysalidis, K. (CERN) ; Fischer, P. (Greifswald U.) ; Heinke, R. (CERN) ; Klink, C. (CERN ; Darmstadt, Tech. U.) et al.
Mass measurements with the ISOLTRAP mass spectrometer at CERN-ISOLDE improve mass uncertainties of neutron-deficient tin isotopes towards doubly-magic $^{100}$Sn. [...]
arXiv:2410.17995.
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Mass measurements of $^{99-101}$In challenge ab initio nuclear theory of the nuclide $^{100}$Sn
/ Mougeot, M. (Heidelberg, Max Planck Inst. ; CERN) ; Atanasov, D. (CERN) ; Karthein, J. (Heidelberg, Max Planck Inst. ; CERN) ; Wolf, R.N. (Sydney U.) ; Ascher, P. (CENBG, Gradignan) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Chrysalidis, K. (CERN) ; Hagen, G. (Tennessee U. ; Oak Ridge) ; Holt, J.D. (TRIUMF ; McGill U.) ; Huang, W.J. (Heidelberg, Max Planck Inst.) et al.
$^{100}$Sn is of singular interest for nuclear structure. Its closed-shell proton and neutron configuration exhibit exceptional binding and $^{100}$Sn is the heaviest nucleus comprising protons and neutrons in equal number, a feature that enhances the contribution of the short-range, proton-neutron pairing interaction and strongly influences its decay via the weak interaction. [...]
arXiv:2109.10673.-
2021 - 12 p.
- Published in : Nature Phys. 17 (2021) 1099
Fulltext: 2109.10673 - PDF; s41567-021-01326-9 - PDF;
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High-Precision Mass Measurements of Neutron Deficient Silver Isotopes Probe the Robustness of the <math display="inline"><mrow><mi>N</mi><mo>=</mo><mn>50</mn></mrow></math> Shell Closure
/ Ge, Zhuang (Jyvaskyla U.) ; Reponen, Mikael (Jyvaskyla U.) ; Eronen, Tommi (Jyvaskyla U.) ; Hu, Baishan (TRIUMF ; ORNL, Oak Ridge (main) ; Oak Ridge) ; Kortelainen, Markus (Jyvaskyla U.) ; Kankainen, Anu (Jyvaskyla U.) ; Moore, Iain (Jyvaskyla U.) ; Nesterenko, Dmitrii (Jyvaskyla U.) ; Yuan, Cenxi (SYSU, Guangzhou) ; Beliuskina, Olga (Jyvaskyla U.) et al.
High-precision mass measurements of exotic $^{95-97}$Ag isotopes close to the $N = Z$ line have been conducted with the JYFLTRAP double Penning trap mass spectrometer, with the silver ions produced using the recently commissioned inductively-heated hot cavity catcher laser ion source at the Ion Guide Isotope Separator On-Line facility. The atomic mass of $^{95}$Ag was directly determined for the first time. [...]
arXiv:2401.07976.-
2024-09-26 - 9 p.
- Published in : Phys. Rev. Lett. 133 (2024) 132503
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Masses of short-lived $^{49}$Sc, $^{50}$Sc, $^{70}$As, $^{73}$Br and stable $^{196}$Hg nuclides
/ Kulikov, I. (Darmstadt, GSI) ; Algora, A. (Valencia U., IFIC ; Debrecen, Inst. Nucl. Res.) ; Atanasov, D. (Dresden, Tech. U.) ; Ascher, P. (CENBG, Gradignan) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Cakirli, R.B. (Istanbul U.) ; Herlert, A. (FAIR, Darmstadt) ; Huang, W.J. (Heidelberg, Max Planck Inst. ; IJCLab, Orsay) ; Karthein, J. (Heidelberg, Max Planck Inst. ; CERN) ; Litvinov, Yu.A. (Darmstadt, GSI) et al.
Mass measurements of $^{49,50}$Sc, $^{70}$As, $^{73}$Br and $^{196}$Hg nuclides produced at CERN's radioactive-ion beam facility ISOLDE are presented. The measurements were performed at the ISOLTRAP mass spectrometer by use of the multi-reflection time-of-flight and the Penning-trap mass spectrometry techniques. [...]
arXiv:2010.15467.-
2020 - 15 p.
- Published in : Nucl. Phys. A 1002 (2020) 121990
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Collectivity in the light radon nuclei measured directly via Coulomb excitation
/ Gaffney, L.P. (Leuven U. ; Liverpool U.) ; Robinson, A.P. (York U., England ; Manchester U.) ; Jenkins, D.G. (York U., England) ; Andreyev, A.N. (Leuven U. ; York U., England ; JAEA, Ibaraki) ; Bender, M. (CENBG, Gradignan) ; Blazhev, A. (Cologne U.) ; Bree, N. (Leuven U.) ; Bruyneel, B. (Cologne U.) ; Butler, P.A. (Liverpool U.) ; Cocolios, T.E. (CERN ; Manchester U.) et al.
Background: Shape coexistence in heavy nuclei poses a strong challenge to state-of-the-art nuclear models, where several competing shape minima are found close to the ground state. A classic region for investigating this phenomenon is in the region around $Z=82$ and the neutron mid-shell at $N=104$. [...]
arXiv:1503.03245.-
2015-06-22 - 11 p.
- Published in : Phys. Rev. C 91 (2015) 064313
External link: Preprint
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