6pP2levels of ionized barium: Lifetimes and depolarization cross sections

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1 November 1978

journal article
research article
Published by American Physical Society (APS) in Physical Review A

Vol. 18 (5) , 2135-2139
https://doi.org/10.1103/physreva.18.2135

Abstract

The Hanle effect and its variation with density has been used to determine the depolarization cross section for collisions between the

{}^{2}P_{\frac{3}{2}}

barium ions and neutral atoms. An extrapolation of the data to zero density gives a value of the average lifetime

τ = 6.22

ns for the

6 p {}^{2}P_{\frac{3}{2}}

level. A further experiment gives

τ = 7.55

ns for the

6 p {}^{2}P_{\frac{1}{2}}

level.

Keywords

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