S. Mannervik et al., STRONG HYPERFINE INDUCED QUENCHING OF A METASTABLE STATE IN XE-BEAM( OBSERVED BY HYPERFINE SELECTIVE LASER PROBING OF A STORED ION), Physical review letters, 76(20), 1996, pp. 3675-3678
A hyperfine state selective laser probing technique is presented to be
used for lifetime-determination of metastable states in an ion storag
e ring. Evidence for a drastic difference between the decay rates of t
he hyperfine states of the metastable level 5(d4)D(7/2) in Xe-129(+) h
as been obtained by this method.