The European Physical Journal A - Hadrons and Nuclei

, Volume 3, Issue 4, pp 313–318

Hyperfine splitting and isotope shift in the atomic D2 line of 22,23Na and the quadrupole moment of 22Na

Authors

  • Y.P. Gangrsky
    • Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Moscov Region Russia
  • D.V. Karaivanov
    • Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Moscov Region Russia
  • K.P. Marinova
    • Faculty of Physics, University of Sofia, 5 J. Bouchier Blvd., 1164 Sofia, Bulgaria
  • B.N. Markov
    • Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Moscov Region Russia
  • L.M. Melnikova
    • Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Moscov Region Russia
  • G.V. Mishinsky
    • Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Moscov Region Russia
  • S.G. Zemlyanoi
    • Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Moscov Region Russia
  • V.I. Zhemenik
    • Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Moscov Region Russia
Nuclear structure

DOI: 10.1007/s100500050185

Cite this article as:
Gangrsky, Y., Karaivanov, D., Marinova, K. et al. EPJ A (1998) 3: 313. doi:10.1007/s100500050185

Abstract.

The hyperfine structure of the D2 optical line in 22Na and 23Na has been investigated using high resolution laser spectroscopy of a well-collimated atomic beam. The hyperfine splitting constants A and B for the excited 3p 2P3/2 level for both investigated sodium isotopes have been obtained. They are as follows: A(22) = 7.31(4) MHz, B(22) = 4.71(28) MHz, A(23) = 18.572(24) MHz, B(23) = 2.723(55) MHz. With this data, using the high precision MCHF calculations for the electric field gradient at the nucleus, the electric quadrupole moment of 22Na has been deduced: Qs(22) =+0.185(11) b. The sign of Qs(22), determined for the first time, indicates a prolate nuclear deformation. A precise value of the isotope shift 22,23Na in the D2 line has also been obtained.

PACS:21.10.Ky Electromagnetic moments – 27.30.+t 20 ≤ A ≤ 38 – 31.30.Gs Hyperfine interactions and isotope effects

Copyright information

© Springer-Verlag Berlin Heidelberg 1998