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1.
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α -decay properties of $^{200,202}$FR
/ Ghys, L (Leuven U. ; SCK-CEN, Mol) ; Andreyev, A N (York U., England ; JAEA, Ibaraki) ; Huyse, M (Leuven U.) ; Van Duppen, P (Leuven U.) ; Antalic, S (Comenius U.) ; Barzakh, A (St. Petersburg, INP) ; Capponi, L (West Scotland U.) ; Cocolios, T E (Leuven U. ; CERN ; Manchester U.) ; Cubiss, J (York U., England) ; Derkx, X (West Scotland U. ; ENSICAEN) et al.
Background: The neutron-deficient lead region provides a range of nuclear phenomena, including isomerism at low energies. This phenomenon can be studied by α decay because the degree of hindrance of α decay provides information on the change in nuclear structure of connected states. [...]
2019 - 13 p.
- Published in : Phys. Rev. C 100 (2019) 054310
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2.
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Search for shape-coexisting 0$^+$ states in $^{66}$Ni from lifetime measurements
/ Olaizola, B (UCM, Madrid, Dept. Phys.) ; Fraile, L M (UCM, Madrid, Dept. Phys.) ; Mach, H (UCM, Madrid, Dept. Phys. ; NCBJ, Warsaw) ; Poves, A (Madrid, Autonoma U.) ; Nowacki, F (Strasbourg, IPHC) ; Aprahamian, A (Notre Dame U.) ; Briz, J A (Madrid, Inst. Estructura Materia) ; Cal-González, J (UCM, Madrid, Dept. Phys.) ; Ghiţa, D (Bucharest, IFIN-HH) ; Köster, U (Laue-Langevin Inst.) et al.
The lifetime of the 0$_3^+$ state in $^{66}$Ni, two neutrons below the $N=40$ subshell gap, has been measured. The transition $B(E2;0_3^+ \rightarrow 2_1^+)$ is one of the most hindered E2 transitions in the Ni isotopic chain and it implies that, unlike $^{68}$Ni, there is a spherical structure at low excitation energy. [...]
2017 - 6 p.
- Published in : Phys. Rev. C 95 (2017) 061303
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3.
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Inverse odd-even staggering in nuclear charge radii and possible octupole collectivity in $^{217,218,219}\mathrm{At}$ revealed by in-source laser spectroscopy
/ Barzakh, A E (St. Petersburg, INP) ; Cubiss, J G (York U., England) ; Andreyev, A N (York U., England ; JAEA, Ibaraki ; CERN) ; Seliverstov, M D (St. Petersburg, INP ; York U., England) ; Andel, B (Comenius U.) ; Antalic, S (Comenius U.) ; Ascher, P (Heidelberg, Max Planck Inst.) ; Atanasov, D (Heidelberg, Max Planck Inst.) ; Beck, D (Darmstadt, GSI) ; Bieroń, J (Jagiellonian U.) et al.
Hyperfine-structure parameters and isotope shifts for the 795-nm atomic transitions in $^{217,218,219}$At have been measured at CERN-ISOLDE, using the in-source resonance-ionization spectroscopy technique. Magnetic dipole and electric quadrupole moments, and changes in the nuclear mean-square charge radii, have been deduced. [...]
2019 - 9 p.
- Published in : Phys. Rev. C 99 (2019) 054317
Article from SCOAP3: PDF;
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4.
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Charge radii and electromagnetic moments of $^{195–211}$At
/ Cubiss, J G (York U., England) ; Barzakh, A E (St. Petersburg, INP) ; Seliverstov, M D (York U., England ; St. Petersburg, INP) ; Andreyev, A N (York U., England ; JAEA, Ibaraki ; Paisley U. ; CERN) ; Andel, B (Comenius U.) ; Antalic, S (Comenius U.) ; Ascher, P (Heidelberg, Max Planck Inst.) ; Atanasov, D (Heidelberg, Max Planck Inst.) ; Beck, D (Darmstadt, GSI) ; Bieroń, J (Jagiellonian U.) et al.
Hyperfine-structure parameters and isotope shifts of At195–211 have been measured for the first time at CERN-ISOLDE, using the in-source resonance-ionization spectroscopy method. The hyperfine structures of isotopes were recorded using a triad of experimental techniques for monitoring the photo-ion current. [...]
2018 - 19 p.
- Published in : Phys. Rev. C 97 (2018) 054327
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5.
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$\beta^-$ decay study of the $^{66}$Mn $-$ $^{66}$Fe $-$ $^{66}$Co $-$ $^{66}$Ni decay chain
/ Stryjczyk, M. (KU Leuven, Dept. Phys. Astron.) ; Tsunoda, Y. (Tokyo U., CNS) ; Darby, I.G. (KU Leuven, Dept. Phys. Astron.) ; De Witte, H. (KU Leuven, Dept. Phys. Astron.) ; Diriken, J. (KU Leuven, Dept. Phys. Astron.) ; Fedorov, D.V. (St. Petersburg, INP) ; Fedosseev, V.N. (CERN) ; Fraile, L.M. (UCM, Madrid, Dept. Phys.) ; Huyse, M. (KU Leuven, Dept. Phys. Astron.) ; Köster, U. (Laue-Langevin Inst.) et al.
Background: Shell evolution can impact the structure of the nuclei and lead to effects such as shape coexistence. The nuclei around $^{68}$Ni represent an excellent study case, however, spectroscopic information of the neutron-rich, $Z<28$ nuclei is limited. [...]
arXiv:1812.07510.-
2018-12-28 - 21 p.
- Published in : Phys. Rev. C 98 (2018) 064326
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6.
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Beta decay of $^{66}$Mn to the $N = 40$ nucleus $^{66}$Fe
/ Olaizola, B (UCM, Madrid, Dept. Phys.) ; Fraile, L M (UCM, Madrid, Dept. Phys.) ; Mach, H (UCM, Madrid, Dept. Phys. ; NCBJ, Swierk) ; Poves, A (Madrid, Autonoma U. ; Madrid, IFT) ; Aprahamian, A (Notre Dame U.) ; Briz, J A (Madrid, Inst. Estructura Materia) ; Cal-González, J (UCM, Madrid, Dept. Phys.) ; Ghiţa, D (Bucharest, IFIN-HH) ; Köster, U (Laue-Langevin Inst.) ; Kurcewicz, W (Warsaw U.) et al.
The low energy structure of 66Fe was studied by means of γ- and fast-timing spectroscopy at the ISOLDE/CERN facility. The level scheme of 66Fe populated following the decay of 66Mn was established. [...]
2017 - 19 p.
- Published in : J. Phys. G 44 (2017) 125103
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7.
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Shape coexistence studied in ${}^{\mathrm{182,184}}$Hg via the β decay of ${}^{\mathrm{182,184}}$Tl
/ Rapisarda, E (Leuven U. ; PSI, Villigen) ; Andreyev, A N (York U., England) ; Antalic, S (Comenius U.) ; Barzakh, A (St. Petersburg, INP) ; Cocolios, T E (Leuven U.) ; Darby, I G (Leuven U.) ; Groote, R De (Leuven U.) ; De Witte, H (Leuven U.) ; Diriken, J (Leuven U.) ; Elseviers, J (Leuven U.) et al.
The ${\beta }^{+}$/EC decay of ${}^{\mathrm{182,184}}$Tl to excited states in the daughter nuclei ${}^{\mathrm{182,184}}$Hg has been investigated at the CERN on-line isotope mass separator facility. In both Tl nuclei two β-decaying states were observed. [...]
2017 - 17 p.
- Published in : J. Phys. G 44 (2017) 074001
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8.
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$\beta$-delayed fission and $\alpha$ decay of $^{196}$At
/ Truesdale, V L (York U., England) ; Andreyev, A N (York U., England ; JAEA, Ibaraki ; West Scotland U.) ; Ghys, L (Leuven U. ; SCK-CEN, Mol) ; Huyse, M (Leuven U.) ; Van Duppen, P (Leuven U.) ; Sels, S (Leuven U.) ; Andel, B (Comenius U.) ; Antalic, S (Comenius U.) ; Barzakh, A (St. Petersburg, INP) ; Capponi, L (West Scotland U.) et al.
A nuclear-decay spectroscopy study of the neutron-deficient isotope At196 is reported where an isotopically pure beam was produced using the selective Resonance Ionization Laser Ion Source and On-Line Isotope Mass Separator (CERN). The fine-structure α decay of At196 allowed the low-energy excited states in the daughter nucleus Bi192 to be investigated. [...]
2016 - 11 p.
- Published in : Phys. Rev. C 94 (2016) 034308
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9.
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Characterization of the low-lying 0$^{+}$ and 2$^{+}$ states in $^{68}$Ni via $\beta$ decay of the low-spin $^{68}$Co isomer
/ Flavigny, F ; Pauwels, D ; Radulov, D ; Darby, I J ; De Witte, H ; Diriken, J ; Fedorov, D V ; Fedosseev, V N (CERN) ; Fraile, L M ; Huyse, M et al.
The low-energy structure of the neutron-rich nucleus Ni68 has been investigated by measuring the β decay of the low-spin isomer in Co68 selectively produced in the decay chain of Mn68. A revised level scheme has been built based on the clear identification of β-γ-E0 delayed coincidences. [...]
2015 - 8 p.
- Published in : Phys. Rev. C 91 (2015) 034310
APS Open Access article: PDF;
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10.
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In-Source Laser Spectroscopy with the Laser Ion Source and Trap: First Direct Study of the Ground-State Properties of $^{217,219}$Po
/ Fink, D A (CERN ; Heidelberg, Max Planck Inst. ; Heidelberg U.) ; Cocolios, T. E. (CERN ; Manchester U.) ; Andreyev, A. N. (York U., England ; JAEA, Ibaraki) ; Antalic, S. (Comenius U. ; Comenius U. ; Comenius U.) ; Barzakh, A. E. (St. Petersburg, INP) ; Bastin, B. (GANIL) ; Fedorov, D. V. (St. Petersburg, INP) ; Fedosseev, V. N. (CERN) ; Flanagan, K. T. (Manchester U. ; Manchester U. ; Manchester U.) ; Ghys, L. (Leuven U. ; Leuven U. ; SCK-CEN, Mol ; Leuven U. ; SCK-CEN, Mol ; SCK-CEN, Mol) et al.
A Laser Ion Source and Trap (LIST) for a thick-target, isotope-separation on-line facility has been implemented at CERN ISOLDE for the production of pure, laser-ionized, radioactive ion beams. It offers two modes of operation, either as an ion guide, which performs similarly to the standard ISOLDE resonance ionization laser ion source (RILIS), or as a more selective ion source, where surface-ionized ions from the hot ion-source cavity are repelled by an electrode, while laser ionization is done within a radio-frequency quadrupole ion guide. [...]
2015 - 15 p.
- Published in : Phys. Rev. X 5 (2015) 011018
APS Open Access article: PDF;
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