期刊
EUROPEAN PHYSICAL JOURNAL A
卷 52, 期 9, 页码 -出版社
SPRINGER
DOI: 10.1140/epja/i2016-16278-7
关键词
-
资金
- US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
- LOEWE program
Recently, we reported the observation of several new isotopes with proton numbers Z = 92 in low-energy collisions of Ca-48 + Cm-248. The peculiarity is that the nuclei were produced in multinucleon transfer reactions, a method which is presently discussed as a possible new way to enter so far unknown regions in the upper part of the Chart of Nuclides. For separation of the transfer products we used a velocity filter, the Separator for Heavy Ion Reaction Products SHIP at GSI. The resulting strong background suppression allowed us to detect nuclei with cross-sections down to the sub-nanobarn scale. Beside the new isotopes we identified about 100 further target-like transfer products and determined their cross-sections. The results together with previous measurements strongly indicate that multinucleon transfer reactions are a viable pathway to the production of new transuranium isotopes.
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