期刊
NUCLEAR PHYSICS A
卷 953, 期 -, 页码 117-138出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysa.2016.04.025
关键词
Superheavy elements; Element 115; Uup; alpha decay; Spontaneous fission
资金
- European Community FP7 - Capacities ENSAR [262010]
- Royal Physiographic Society in Lund
- Euroball Owners Committee
- Swedish Research Council
- German BMBF
- U.S. Department of Energy, Office of Science (Stewardship Science Academic Alliances program) [DOE-DE-NA0002574]
- UK Science and Technology Facilities Council
- U.S. Department of Energy, Office of Science (NUCLEI SciDAC-3 Collaboration) [DE-SC0008511]
- STFC [ST/L005727/1, ST/F012039/1, ST/M006433/1, ST/J000094/1, ST/L005670/1, ST/L005689/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/L005689/1, ST/L005727/1, ST/F012039/1, ST/M006433/1, ST/J000094/1, ST/L005670/1] Funding Source: researchfish
Products of the fusion-evaporation reaction Ca-48 + Am-243 were studied with the TASISpec set-up at the gas-filled separator TASCA at the GSI Helmholtzzentrum fur Schwerionenforschung, Darmstadt, Germany. Amongst the detected thirty correlated alpha-decay chains associated With the production of element Z = 115, two recoil-alpha-fission and five recoil-alpha-alpha-fission events were observed. The latter five chains are similar to four such events reported from experiments performed at the Dubna gas-filled separator, and three such events reported from an experiment at the Berkeley gas-filled separator. The four chains observed at the Dubna gas-filled separator were assigned to start from the 2n-evaporation channel (289)115 due to the fact that these recoil-alpha-alpha-fission events were observed only at low excitation energies. Contrary to this interpretation, we suggest that some of these recoil-alpha-alpha-fission decay chains, as well as some of the recoil-alpha-alpha-fission and recoil-alpha-fission decay chains reported from Berkeley and in this article, start from the 3n-evaporation channel (288)115. (C) 2016 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据