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Charge radii and electromagnetic moments of Bi214−218: Exploring the “southern” border of the Z>82 octupole-deformation region
/ Barzakh, A (Unlisted) ; Andreyev, A N (JAEA, Ibaraki ; York U., England) ; Yue, Z (York U., England) ; Nies, L (CERN) ; Seliverstov, M D (Unlisted) ; Cubiss, J G (York U., England) ; Algora, A (Valencia U., IFIC ; KLTE-ATOMKI) ; Andel, B (Comenius U.) ; Antalic, S (Comenius U.) ; Al Monthery, M (Unlisted, OM) et al.
The changes in the mean-squared charge radii relative to Bi126209 (δ〈r2〉N,126) and the magnetic dipole and electric quadrupole moments in Bi214−218 have been measured using the in-source resonance-ionization spectroscopy technique at ISOLDE (CERN). Magnetic moments of odd-odd bismuth nuclei have been analyzed by the additivity relation. [...]
2025 - 10 p.
- Published in : Phys. Rev. C 112 (2025) 034304
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Deformation versus Sphericity in the Ground States of the Lightest Gold Isotopes
/ Cubiss, J G (York U., England) ; Andreyev, A N (York U., England ; JAEA, Ibaraki) ; Barzakh, A E (Unlisted) ; Van Duppen, P (KU Leuven, Dept. Phys. Astron.) ; Hilaire, S (CEA DAM) ; Péru, S (CEA DAM) ; Goriely, S (Brussels U., IAA) ; Al Monthery, M (York U., England) ; Althubiti, N A (Manchester U. ; Al Jouf U. ; Ain Shames U.) ; Andel, B (Comenius U.) et al.
The changes in mean-squared charge radii of neutron-deficient gold nuclei have been determined using the in-source, resonance-ionization laser spectroscopy technique, at the ISOLDE facility (CERN). From these new data, nuclear deformations are inferred, revealing a competition between deformed and spherical configurations. [...]
2023 - 8 p.
- Published in : Phys. Rev. Lett. 131 (2023) 202501
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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
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UCx target production at TRIUMF in the ARIEL era
/ Cervantes, Marla (TRIUMF ; U. Victoria (main)) ; Fouquet-Métivier, Pauline (Haute Alsace U., ENSCMU) ; Kunz, Peter (TRIUMF ; Simon Fraser U., Burnaby (main)) ; Lambert, Laura (TRIUMF ; CERN) ; Mjos, Anders (TRIUMF) ; Goodacre, Thomas Day (TRIUMF) ; Wong, John (TRIUMF) ; Gottberg, Alexander (TRIUMF ; U. Victoria (main))
The Advanced Rare IsotopE Laboratory (ARIEL) will increase TRIUMF’s radioactive ion beam capabilities. As
part of the ARIEL target material research and development campaign, a new method to produce targets of
mixed uranium carbide with excess graphite has been proposed and tested. [...]
2020 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 463 (2020) 367-370
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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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Laser-assisted nuclear decay spectroscopy of $^{176,177,179}$Au
/ Harding, R D (York U., England ; CERN) ; Andreyev, A N (York U., England ; JAERI, Tokai) ; Barzakh, A E (St. Petersburg, INP) ; Cubiss, J G (York U., England) ; Van Duppen, P (Leuven U.) ; Al Monthery, M (York U., England) ; Althubiti, N A (Manchester U.) ; Andel, B (Leuven U. ; Comenius U.) ; Antalic, S (Comenius U.) ; Cocolios, T E (Leuven U. ; Manchester U.) et al.
A study of the laser-ionized and mass-separated neutron-deficient isotopes $^{176,177,179}$Au was performed using the Resonance Ionization Laser Ion Source and the Windmill detection setup at ISOLDE, CERN. New and improved data on complex fine-structure α decays of the three isotopes were deduced, providing insight into the low-lying levels in the daughter nuclei $^{172,173,175}$Ir. [...]
2021 - 16 p.
- Published in : Phys. Rev. C 104 (2021) 024326
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In-source laser photoionization spectroscopy of Bi isotopes: accuracy of the technique and methods of data analysis
/ Seliverstov, Maxim (St. Petersburg, INP) ; Barzakh, Anatoly (St. Petersburg, INP) ; Ahmed, Rizwan (CERN ; NCP, Islamabad) ; Chrysalidis, Katerina (CERN) ; Goodacre, Thomas Day (CERN) ; Fedorov, Dmitry (St. Petersburg, INP) ; Fedoseev, Valentine (CERN) ; Granados, Camilo (CERN) ; Marsh, Bruce (CERN) ; Molkanov, Pavel (St. Petersburg, INP) et al.
/IS608
The in-source laser photoionization spectroscopy was applied to study neutron-deficient Bi isotopes. Data analysis and accuracy-related aspects of this technique are discussed. [...]
2020
- Published in : Hyperfine Interact. 241 (2020) 40
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9.
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High-resolution and low-background $^{163}$Ho spectrum: interpretation of the resonance tails
/ Velte, C (Kirchhoff Inst. Phys.) ; Ahrens, F (Kirchhoff Inst. Phys.) ; Barth, A (Kirchhoff Inst. Phys.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Braß, M (U. Heidelberg, ITP) ; Door, M (Heidelberg, Max Planck Inst.) ; Dorrer, H (Mainz U., Inst. Kernphys.) ; Düllmann, Ch E (Mainz U., Inst. Kernphys. ; Darmstadt, GSI ; Helmholtz Inst., Mainz) ; Eliseev, S (Heidelberg, Max Planck Inst.) ; Enss, C (Kirchhoff Inst. Phys.) et al.
The determination of the effective electron neutrino mass via kinematic analysis of beta and electron capture spectra is considered to be model-independent since it relies on energy and momentum conservation. At the same time the precise description of the expected spectrum goes beyond the simple phase space term. [...]
2019 - 8 p.
- Published in : Eur. Phys. J. C 79 (2019) 1026
External link: Fulltext
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