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 …
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+ …
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) …
Doppler-free two-photon (DFTP) spectroscopy is a standard technique for precision measurement of transition frequencies of dipole-forbidden transitions. Here, we report the …
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 …
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 …