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Phys. Rev. A 73, 010501(R) (2006) [4 pages]

Measurement of the lifetimes of the lowest 3P1 state of neutral Ba and Ra

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N. D. Scielzo1, J. R. Guest1, E. C. Schulte1, I. Ahmad1, K. Bailey1, D. L. Bowers2, R. J. Holt1, Z.-T. Lu1,3, T. P. O’Connor1, and D. H. Potterveld1
1Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
2Chemical Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
3Department of Physics and the Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637, USA

Received 5 August 2005; published 9 January 2006

The lifetimes of the lowest 3P1 states of Ba and Ra were determined to be 1345±14 ns and 422±20 ns, respectively, by measuring the exponential decay of fluorescence after illuminating a thermal atomic beam with pulses of laser light. In addition, the 1S0(F=1∕2)-3P1(F=3∕2) transition frequency in 225Ra was measured to be 13 999.269±0.001 cm−1 by referencing a nearby I2 transition.

© 2006 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.73.010501
DOI:
10.1103/PhysRevA.73.010501
PACS:
32.70.Cs, 32.30.Jc
 
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