Lifetimes andg J factors of 6s7p and 5d6p levels of Ba I |
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Authors: | J. Brecht J. Kowalski G. Lidö I. -J. Ma G. zu Putlitz |
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Affiliation: | 1. I. Physikalisches Institut der Universit?t Heidelberg, Deutschland 2. Sch?nborn Gymnasium, Bruchsal 3. Chalmers University of Technology, G?teborg, Sweden 4. Institute of Nuclear Energy Research, Lung-Tan, Taiwan
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Abstract: | Excited states of Ba have been investigated with optical double resonance and Hanle effect. The followingg J factors and natural lifetimes (in 10?9 sec) have been measured $$begin{gathered} 6s7pleft{ {begin{array}{*{20}c} {^1 P_1 :g_J = 1.003(2)tau = 13.5(6)} {^3 P_1 :g_J = 1.4971(8)tau = 85.0(8.0)} end{array} } right. hfill 5d6pleft{ {begin{array}{*{20}c} {^1 P_1 :g_J = 1.004(2)tau = 12.4(9)} {^3 P_1 :g_J = 1.4847(15)tau = 11.7(9)} {^3 D_1 :g_J = 0.5064(3)tau = 17.0(5).} end{array} } right. hfill end{gathered}$$ g J is utilized to test the mixing coefficients of the wave functions in the intermediate coupling model. The lifetimes are converted into absolute transition probabilities for all the decays originating from the states investigated under the assumption that their branching ratios obtained elsewhere are correct. This assumption is not unquestionable, however. |
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