Branching ratio for the M1 decay of the 2 {sup 2}S{sub {1/2}} state in one-electron krypton
Journal Article
·
· Bulletin of the American Physical Society
OSTI ID:281646
- Argonne National Lab., IL (United States); and others
We report a measurement of the lifetime of the 2 {sup 2}S{sub {1/2}} state in one-electron krypton and the first direct determination of the branching ratio for the M1 decay of this state. The branching ratio measurement provides a sensitive test of the relativistic corrections to the decay rate. The lifetime measurement yields 36.8 {+-} 1.4 ps and the branching ratio is found to be 0.356 {+-} 0.015 both in good agreement with the theoretical values of 37.008 ps and 0.3643, respectively. From these measurements we also deduce the corresponding magnetic dipole decay rate A{sub M1} = (9.68 {+-} 0.55) x 10{sup 9} s{sup -1} and the two-photon decay rate A{sub 2}E1 = (1.750 {+-} 0.078) 10{sup 10} s{sup -1}.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 281646
- Report Number(s):
- CONF-9305421--
- Journal Information:
- Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 3 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
- Country of Publication:
- United States
- Language:
- English
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Tue Dec 31 23:00:00 EST 1991
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