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Fine-structure measurements in high-L n=17 and 20 Rydberg states of barium

Journal Article · · Physical Review. A
;  [1]
  1. Department of Physics, SUNY Fredonia, Fredonia, New York 14063 (United States)
Fine-structure intervals in n=17 and 20 barium Rydberg levels with 6{<=}L{<=}11 have been measured precisely with the resonant excitation Stark ionization spectroscopy microwave technique. The measured intervals were analyzed using the long-range polarization model, including allowance for the large nonadiabatic effects of the Ba{sup +} 5d level and the contributions of higher-order terms. The analysis determined improved values in atomic units of both dipole and quadrupole polarizabilities of Ba{sup +}, {alpha}{sub 1}=123.88(5) and {alpha}{sub 2}=4420(250)
OSTI ID:
21027995
Journal Information:
Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 76; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English