OBSERVATION OF CIRCULAR–METASTABLE DOUBLY EXCITED STATES OF BARIUM
- 10 August 1991
- journal article
- review article
- Published by World Scientific Pub Co Pte Ltd in Modern Physics Letters B
- Vol. 5 (18) , 1199-1202
- https://doi.org/10.1142/s0217984991001465
Abstract
We report the observation of unusual doubly excited states of barium: Ba (5dj, 21c). One of the valence electrons of Ba is prepared in an oriented circular Rydberg state (n = 21, l = m = 20, denoted 21c) by the adiabatic crossed-fields method. The other electron is excited to a 6pj state which decays radiatively to a 5dj metastable level. The measured autoionization lifetime of Ba (5d5/2, 21c) is T ~ 1 μ s , whereas for Ba (5d3/2, 21c), τ is estimated to be longer than 400 μs. This very large difference of lifetimes between the fine-structure states of the inner electron has been analysed.Keywords
This publication has 0 references indexed in Scilit: