Measurement of lifetimes and tensor polarizabilities of odd-parity states of atomic samarium

Citation
S. Rochester et al., Measurement of lifetimes and tensor polarizabilities of odd-parity states of atomic samarium, PHYS REV A, 59(5), 1999, pp. 3480-3494
Citations number
63
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW A
ISSN journal
10502947 → ACNP
Volume
59
Issue
5
Year of publication
1999
Pages
3480 - 3494
Database
ISI
SICI code
1050-2947(199905)59:5<3480:MOLATP>2.0.ZU;2-C
Abstract
A systematic measurement of the lifetimes and tensor polarizabilities of th e lowest-lying odd-parity levels of Sm I was performed. The lifetimes were measured by detecting time-resolved fluorescence following pulsed-laser exc itation of atoms in an atomic beam; polarizabilities were measured employin g the method of Stask-induced quantum beats. An analysis of the data is und ertaken to find the best even-parity candidate states for an atomic electri c dipole moment (EDM) measurement. For the most favorable candidate state ( (7)G(1)), the electron EDM enhancement factor is evaluated to be in the ran ge \R\approximate to 100-3800. Critical analysis of the present data along with earlier results in Sm shows the necessity of a term reassignment for s everal odd-parity states. This term reassignment is also used in an estimat e of the parity-nonconserving F-7(0)-(7)G(1) amplitude. [S1050-2947(99)1040 5-0].