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Fine and hyperfine structure of the 22 P term of7Li; determination of the nuclear quadrupole moment

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

Microwave transitions between the Zeeman split doublet states 22 P 1/2 and 22 P 3/2 of7Li have been measured using the optical double resonance method. The fine structure separation was determined to bev fs=10.053.184(58) MHz. The hyperfine structure was well resolved and led to considerably improved precision of the diagonal coupling constantsa 1/2=45.914(25) MHz,a 3/2=−3.055(14) MHz,b=−0.221(29) MHz. Furthermore, the contact, spin dipolar and orbital magnetic hyperfine constants are evaluated using additional results from level crossing experiments, which are more sensitive on the non-diagonal magnetic hyperfine constanta 3/2,1/2. The results are in good agreement with recent theoretical calculations. The nuclear quadrupole moment is derived fromb to beQ(7Li)=−41(6) mbarn.

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Author notes

  1. E. W. Otten

    Present address: Institut für Physik der Universität Mainz, Deutschland

Authors and Affiliations

  1. I. Physikalisches Institut der Universität Heidelberg, Deutschland

    H. Orth, H. Ackermann & E. W. Otten

Authors
  1. H. Orth
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  2. H. Ackermann
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  3. E. W. Otten
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Additional information

This publication comprises the principal part of the thesis of H. Orth.

We want to thank D. Weber for his help in the experimental work at the beginning stage of this experiment. The invaluable assistance of Dr. W. Farr in the construction of the electronic part of the apparatus is gratefully acknowledged.

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Orth, H., Ackermann, H. & Otten, E.W. Fine and hyperfine structure of the 22 P term of7Li; determination of the nuclear quadrupole moment. Z Physik A 273, 221–232 (1975). https://doi.org/10.1007/BF01410002

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  • DOI: https://doi.org/10.1007/BF01410002

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