Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2012-03-22
Phys. Rev. C85 (2012) 041601R--5
Physics
Nuclear Physics
Nuclear Theory
6 pages, 5 figures; Phys. Rev. C, in press
Scientific paper
10.1103/PhysRevC.85.041601
By using a newly developed di-nuclear system model with a dynamical potential energy surface---the DNS-DyPES model, hot fusion reactions for synthesizing superheavy nuclei (SHN) with the charge number Z = 112-120 are studied. The calculated evaporation residue cross sections are in good agreement with available data. In the reaction 50Ti+249Bk -> (299-x)119 + xn, the maximal evaporation residue (ER) cross section is found to be about 0.11 pb for the 4n-emission channel. For projectile-target combinations producing SHN with Z=120, the ER cross section increases with the mass asymmetry in the incident channel increasing. The maximal ER cross sections for 58Fe+244Pu and 54Cr + 248Cm are relatively small (less than 0.01 pb) and those for 50Ti+249Cf and 50Ti+251Cf are about 0.05 and 0.25 pb, respectively.
Scheid Werner
Wang Nan
Zhao En-Guang
Zhou Shan-Gui
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