Matrix element of the anomalously low-energy (3.5±0.5 eV) transition in 229Th and the isomer lifetime |
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| Authors: | A. M. Dykhne E. V. Tkalya |
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| Affiliation: | (1) Troitsk Institute of Innovational and Thermonuclear Studies, Troistsk, Russia;(2) Scientific-Research Institute of Nuclear Physics, M. V. Lomonosov Moscow State University, 119899 Moscow, Russia |
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| Abstract: | The matrix element of the anomalously low-energy (3.5±0.5 eV) nuclear M1 transition between the first excited state and the ground state of the 229Th nucleus is determined with allowance for the Coriolis mixing of the rotational bands. The upper and lower limits on the lifetime of the level with respect to an isomeric transition are given. A method is proposed for measuring the half-life of the low-lying isomer 229m Th directly in a 233U sample. Pis’ma Zh. éksp. Teor. Fiz. 67, No. 4, 233–238 (25 February 1998) |
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