11/30
2023
Seminar
- Title题目 Effect of Coriolis mixing on lifetime of isomeric states in heavy nuclei
- Speaker报告人 Timur Shneidman (JINR)
- Date日期 2023年11月30日 16:00
- Venue地点 北楼202
Abstract摘要
The effect of Coriolis mixing on the gamma-decay of one-quasiparticle isomeric states is examined for transfermium nuclei with neutron number N=153 [1]. It is shown that K-mixing of states sharply increases if the isomeric state closely approaches the rotational state with the same angular momentum, but built on another quasiparticle state. The model explains three order of magnitude enhancement of the decay rate of the K = 7/2+ isomeric state in 251Cf in comparison with decay of the similar state in 249Cm. Proposed mechanism is of general importance for the isomer decay properties in a wide range of heavy odd-mass nuclei.
[1] T. M. Shneidman, N. Minkov, G. G. Adamian, N. V. Antonenko, Phys. Rev. C 106, 014310 (2022).
邀请人：
周善贵 研究员
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