Lifetime of the 2 sup 3 S sub 1 state of heliumlike sup 79 Br sup 33+
Journal Article
·
· Physical Review, A (General Physics); (USA)
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (USA)
- Nuclear Structure Research Laboratory, University of Rochester, Rochester, New York 14627 (USA)
- Department of Physics, University of Toledo, Toledo, Ohio 43606 (USA) Astronomy, University of Toledo, Toledo, Ohio 43606 (USA)
We report a measurement of the lifetime of the 2{sup 3}{ital S}{sub 1} level in heliumlike {sup 79}Br{sup 33+}. Our result is {tau}{sup exp}(2 {sup 3}{ital S}{sub 1})=224.1(7.1) ps. This agrees with the theoretical calculation of 230(2) ps and provides a test of {ital O}({ital Z}{sup 2}{alpha}{sup 2}) corrections to the lifetime. The experimental error is dominated by uncertainties in the correction required to account for long-lived cascades from highly excited states.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 7188706
- Journal Information:
- Physical Review, A (General Physics); (USA), Vol. 41:7; ISSN 0556-2791
- Country of Publication:
- United States
- Language:
- English
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