Measurement of the 7p{sup 2}P{sub 3/2} Level Lifetime in Atomic Francium
Journal Article
·
· Physical Review Letters
- Department of Physics, State University of New York, Stony Brook, New York 11794-3800 (United States)
We present the first measurement of an atomic radiative lifetime in Fr. We use a time-correlated single photon counting technique with a cold sample of {sup 210}Fr atoms in a magneto-optic trap. The results are a precision experimental test of the atomic many-body perturbation theory applied to the heaviest alkali. The lifetime for the 7p {sup 2}P{sub 3/2} level of 21.02(16) ns gives a value for the reduced transition matrix element between the levels 7s {sup 2}S{sub 1/2} {r_arrow} 7p {sup 2}P{sub 3/2} of 5.898(22)a{sub {infinity}} atomic units. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 548771
- Journal Information:
- Physical Review Letters, Vol. 78, Issue 22; Other Information: PBD: Jun 1997
- Country of Publication:
- United States
- Language:
- English
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