Hyperfine anomaly in gold and magnetic moments of <i>I</i><SUP>π</SUP>=11/2<SUP>-</SUP> gold isomers



Barzakh, AE, Atanasov, D, Andreyev, AN, Al Monthery, M, Althubiti, NA, Andel, B, Antalic, S, Blaum, K, Cocolios, TE, Cubiss, JG
et al (show 37 more authors) (2020) Hyperfine anomaly in gold and magnetic moments of <i>I</i><SUP>π</SUP>=11/2<SUP>-</SUP> gold isomers. PHYSICAL REVIEW C, 101 (3). 034308-.

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Abstract

Hyperfine-structure constants for the 6s2S1/2 and 6p2P1/2 atomic states of the Iπ=11/2- gold isomers Aum177,191,193,195 have been measured at CERN-ISOLDE, using the in-source laser resonance-ionization spectroscopy technique. From the measured hyperfine constants the differences between hyperfine anomalies for these atomic states have been deduced. These differential hyperfine anomaly values have been used to determine the 6s-state hyperfine anomaly relative to the stable Au197 with advanced atomic calculations. Magnetic dipole moments for the gold isomers in question have been deduced, taking into account the corresponding relative hyperfine-anomaly values. It has been shown that the commonly used prescription for the extraction of the magnetic moment values for the gold isotopes should be reconsidered. The magnetic moments calculated by this prescription have been reevaluated by properly accounting for the hyperfine anomaly, which is as large as 10% for several gold isotopes.

Item Type: Article
Uncontrolled Keywords: 5106 Nuclear and Plasma Physics, 5110 Synchrotrons and Accelerators, 51 Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 06 Apr 2020 10:25
Last Modified: 20 Jun 2024 20:39
DOI: 10.1103/PhysRevC.101.034308
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3082103