Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2010-12-20
J. Phys. Soc. Jpn. 79, 074201 (2010)
Physics
Nuclear Physics
Nuclear Theory
6 pages, 4 figures
Scientific paper
10.1143/JPSJ.79.074201
We discuss the possibility of the non-one-neutron emission channels in the cold fusion reaction $^{70}$Zn + $^{209}$Bi to produce the element Z=113. For this purpose, we calculate the evaporation-residue cross sections of one-proton, radiative-capture, and two-neutron emissions relative to the one-neutron emission in the reaction $^{70}$Zn + $^{209}$Bi. To estimate the upper bounds of those quantities, we vary model parameters in the calculations, such as the level-density parameter and the height of the fission barrier. We conclude that the highest possibility is for the 2n reaction channel, and its upper bounds are 2.4$%$ and at most less than 7.9% with unrealistic parameter values, under the actual experimental conditions of [J. Phys. Soc. Jpn. {\bf 73} (2004) 2593].
Ichikawa Takatoshi
Iwamoto Akira
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