期刊
NUCLEAR PHYSICS A
卷 944, 期 -, 页码 62-98出版社
ELSEVIER
DOI: 10.1016/j.nuclphysa.2015.07.003
关键词
Superheavy elements; Heavy-ion induced fusion; Alpha decay; Spontaneous fission
资金
- Russian Foundation for Basic Research [13-02-12052, 13-03-12205]
- U.S. DOE Office of Nuclear Physics under DOE [DE-AC05-00OR22725]
- UT-Battelle, LLC
- LDRD Program under DOE [08-ERD-030, DE-AC52-07NA27344]
- Lawrence Livermore National Security, LLC
- U.S. Department of Energy [DE-FG-05-88ER40407]
- Committee of Plenipotentiaries of the Governments of the JINR Member States, JINR Directorate and Scientific Council
The discovery and investigation of the new region of superheavy nuclei at the DGFRS separator based on fusion reactions of Ca-48 with U-238-Cf-249 target nuclei are reviewed. The production cross sections and summaries of the decay properties, including the results of the posterior experiments performed at the SHIP, BGS, and TASCA separators, as well as at the chemistry setups, are discussed and compared with the theoretical calculations and the systematic trends in the alpha-decay and spontaneous fission properties. The properties of the new nuclei, isotopes of elements 112-118, and their decay products demonstrate significant increases in the stability of the heaviest nuclei with increasing neutron number and closer approach to magic number N = 184. (C) 2015 The Authors. Published by Elsevier B.V.
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