期刊
PHYSICAL REVIEW C
卷 73, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.73.024317
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资金
- Science and Technology Facilities Council [EP/C015266/1] Funding Source: researchfish
- STFC [EP/C015266/1] Funding Source: UKRI
Decay properties of the new neutron-deficient nuclide At-192 have been studied in the complete fusion reaction Sm-144(V-51,3n)At-192 at the velocity filter SHIP. Two isomeric states with half-lives of 88(6) ms and 11.5(6) ms, respectively, and with complex alpha-decay schemes were identified in At-192. The decay pattern of one of the isomers suggests that it is based on the oblate-deformed pi 2f(7/2)circle times nu 1i(13/2) configuration, which confirms the expected onset of deformation in the At isotopes by approaching the neutron midshell at N=104.
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