[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 …

Electric-dipole transition amplitudes for atoms and ions with one valence electron

BM Roberts, CJ Fairhall, JSM Ginges - Physical Review A, 2023 - APS
Motivated by recent measurements for several alkali-metal atoms and alkali-metal-like ions,
we perform a detailed study of electric dipole (E 1) transition amplitudes in K, Ca+, Rb, Sr+ …

Measurement of the hyperfine coupling constants and absolute energies of the and levels in atomic cesium

JA Quirk, L Sherman, A Damitz, CE Tanner, DS Elliott - Physical Review A, 2023 - APS
We report measurements of the hyperfine coupling constant for the 8 p P 1/2 2 level of
atomic cesium, Cs 133, with a relative uncertainty of≈ 0.019%. Our result is A= 42.933 (8) …

Observation of quantum interference of optical transition pathways in Doppler-free two-photon spectroscopy and implications for precision measurements

B Rahaman, SC Wright, S Dutta - Physical Review A, 2024 - APS
Doppler-free two-photon (DFTP) spectroscopy is a standard technique for precision
measurement of transition frequencies of dipole-forbidden transitions. Here, we report the …

High-precision measurement of the hyperfine splitting and ac Stark shift of the state in atomic cesium

B Rahaman, S Dutta - Physical Review A, 2022 - APS
We report the measurement of hyperfine splitting in the 7 d D 3/2 2 state of Cs 133 using
high-resolution Doppler-free two-photon spectroscopy in a Cs vapor cell. We determine the …

Long-range parity-nonconserving electron-nucleon interaction

VA Dzuba, VV Flambaum, P Munro-Laylim - Physical Review A, 2022 - APS
As known, electron vacuum polarization by nuclear Coulomb field produces a Uehling
potential with the range ℏ/2 mec. Similarly, neutrino vacuum polarization by Z boson field …