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Lifetimes of 21 excited states in atomic Yb were measured using time-resolved fluorescence detection following pulsed laser excitation. The lifetime of the 4f¹⁴5d6s³{D}₁$ state, which is of particular importance for a proposed study of parity nonconservation in atoms, was measured to be 380(30) ns. {} 1996 The American Physical Society.
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Bowers et al. (1996) studied this question.
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