Barzakh, AE, Cubiss, JG, Andreyev, AN, Seliverstov, MD, Andel, B, Antalic, S, Ascher, P, Atanasov, D, Beck, D, Bieron, J et al (show 57 more authors)
(2019)
Inverse odd-even staggering in nuclear charge radii and possible octupole collectivity in <SUP>217,218,219</SUP>At revealed by in-source laser spectroscopy.
PHYSICAL REVIEW C, 99 (5).
054317-.
ISSN 2469-9985, 2469-9993
Text
PhysRevC.99.054317.pdf - Published version Download (631kB) | Preview |
Abstract
Hyperfine-structure parameters and isotope shifts for the 795-nm atomic transitions in At217,218,219 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. A large inverse odd-even staggering in radii, which may be associated with the presence of octupole collectivity, has been observed. Namely, the radius of the odd-odd isotope At218 has been found to be larger than the average of its even-N neighbors, At217,219. The discrepancy between the additivity-rule prediction and experimental data for the magnetic moment of At218 also supports the possible presence of octupole collectivity in the considered nuclei.
Item Type: | Article |
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Uncontrolled Keywords: | 5106 Nuclear and Plasma Physics, 5110 Synchrotrons and Accelerators, 51 Physical Sciences |
Depositing User: | Symplectic Admin |
Date Deposited: | 15 Aug 2019 08:15 |
Last Modified: | 07 Dec 2024 02:03 |
DOI: | 10.1103/PhysRevC.99.054317 |
Open Access URL: | http://doi.org/10.1103/PhysRevC.99.054317 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3051790 |