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Hyperfine interaction between the singlet and triplet ground states of Cs2: A textbook example of gerade-ungerade symmetry breaking

✍ Scribed by H. Weickenmeier; U. Diemer; W. Demtröder; M. Broyer


Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
553 KB
Volume
124
Category
Article
ISSN
0009-2614

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✦ Synopsis


The hyperfine-mduced mixing of high vibrational rotational levels (U > 125) of the Cs, X 'El ground state with levels of the a3X:

state has been discovered using Doppler-free double-resonance polarization spectroscopy.

The observed spectral patterns can be explained by ungerade-gerade symmetry breaking induced by scalar indtrect nuclear-spin-nuclear-spin mteraction. which can be descrtbed by second-order perturbation theory.