STARK-EFFECT IN BARIUM 6SND 1D2 RYDBERG STATES - EVIDENCE OF STRONG PERTURBATIONS IN THE 1F3 SERIES

K.A.H. van Leeuwen, W. Hogervorst, B.H. Post

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Abstract

The scalar and tensor polarizabilities of the barium 6snd D21 states with principal quantum number n ranging from 14 to 30, as well as those of the 5d 7d D21 perturber state near n=26, have been measured with high-resolution laser-atomic-beam spectroscopy. The data are analyzed by calculating the contribution to the polarizabilities of all known odd-parity states connected via the electric dipole operator with the D21 states. In this way the contributions of the unknown 6snf F31 states are inferred. The results indicate that the F31 series is heavily affected by at least two perturber states. A tentative three-channel quantum-defect theory analysis of the F31 series, based on a fit to the experimental polarizabilities, is presented. © 1983 The American Physical Society.
Original languageEnglish
Pages (from-to)1901-1907
JournalPhysical Review A. Atomic, Molecular and Optical Physics
Volume28
Issue number4
DOIs
Publication statusPublished - 1983

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