[HTML][HTML] Survey of hyperfine structure measurements in alkali atoms

M Allegrini, E Arimondo, LA Orozco - Journal of Physical and Chemical …, 2022 - pubs.aip.org
The spectroscopic hyperfine constants for all the alkali atoms are reported. For atoms from
lithium to cesium, only the long lived atomic isotopes are examined. For francium, the …

Empirical determination of the Bohr-Weisskopf effect in cesium and improved tests of precision atomic theory in searches for new physics

G Sanamyan, BM Roberts, JSM Ginges - Physical Review Letters, 2023 - APS
The finite distribution of the nuclear magnetic moment across the nucleus gives a
contribution to the hyperfine structure known as the Bohr-Weisskopf (BW) effect. We have …

Comment on “New physics constraints from atomic parity violation in

BM Roberts, JSM Ginges - Physical Review D, 2022 - APS
In a recent paper, Sahoo, Das, and Spiesberger, Phys. Rev. D 103, L111303 (2021)
PRVDAQ 2470-0010 10.1103/PhysRevD. 103. L111303, a calculation of the parity violating …

Hyperfine anomaly in heavy atoms and its role in precision atomic searches for new physics

BM Roberts, JSM Ginges - Physical Review A, 2021 - APS
We report on our calculations of differential hyperfine anomalies in the nuclear single-
particle model for a number of atoms and ions of interest for precision atomic tests of the …

Effect of nuclear magnetization distribution within the Woods-Saxon model: Hyperfine splitting in neutral Tl

SD Prosnyak, LV Skripnikov - Physical Review C, 2021 - APS
Three models of the nuclear magnetization distribution are applied to predict the hyperfine
structure of the hydrogenlike heavy ions and neutral thallium atoms: the uniformly …

Bohr-Weisskopf effect: From hydrogenlike-ion experiments to heavy-atom calculations of the hyperfine structure

BM Roberts, PG Ranclaud, JSM Ginges - Physical Review A, 2022 - APS
We study the influence of electron screening on the Bohr-Weisskopf (BW) effect in many-
electron atoms. The BW effect gives the finite-nucleus magnetization contribution to the …

Studies of the weak interaction in atomic systems: towards measurements of atomic parity non-conservation in francium

G Gwinner, LA Orozco - Quantum Science and Technology, 2022 - iopscience.iop.org
Tests of the standard model of particle physics should be carried out over the widest
possible range of energies. Here we present our plans and progress for an atomic parity non …

Refined nuclear magnetic dipole moment of rhenium: and

LV Skripnikov, SD Prosnyak - Physical Review C, 2022 - APS
The refined values of the magnetic dipole moments of Re 185 and Re 187 nuclei are
obtained. For this, we perform a combined relativistic coupled cluster and density-functional …

Ab initio calculations of the hyperfine structure of Ra+ and evaluations of the electric quadrupole moment Q of the 209,211,221,223 Ra nuclei

FC Li, YB Tang, HX Qiao, TY Shi - Journal of Physics B: Atomic …, 2021 - iopscience.iop.org
The relativistic coupled-cluster method has been employed to calculate the energies,
magnetic dipole, electric quadrupole and magnetic octupole hyperfine-structure constants of …

The hyperfine anomaly in mercury and test of the Moskowitz-Lombardi rule

J Vandeleur, G Sanamyan, BM Roberts… - arxiv preprint arxiv …, 2024 - arxiv.org
The Moskowitz-Lombardi rule gives a simple relation between the magnetic moment of an
atomic nucleus and the effect of its radial distribution on the hyperfine structure-the magnetic …