Production of Th nuclei in the Ca 48 + Yb 170 and Cr 54 + Dy 164 reactions
Sagaidak R.N. Utyonkov V.K. Abdullin F.S. Dmitriev S.N. Ibadullayev D. Itkis M.G. Kovrizhnykh N.D. Kuznetsov D.A. Petrushkin O.V. Podshibiakin A.V. Polyakov A.N. Popeko A.G. Shubin V.D. Shumeiko M.V. Solovyev D.I. Tsyganov Y.S. Voinov A.A. Bublikova N.S. Voronyuk M.G. Sabelnikov A.V. Bodrov A.Y. Gan Z.G. Zhang Z.Y. Huang M.H. Yang H.B. Huang X.Y.
October 2024American Physical Society
Physical Review C
2024#110Issue 4
Cross-section data for Th nuclei produced in the Ca48+Yb170 and Cr54+Dy164 fusion-evaporation reactions leading to the same Th∗218 compound nucleus (CN) were obtained with the Dubna Gas-Filled Recoil Separator (DGFRS-2) at energies around the fusion barriers. These data, corresponding to the neutron evaporation channels in both reactions, are considered from the point of view of the CN formation probability in going from the Ca48- to Cr54-induced reactions. Such interest stems from searching for ways to synthesize superheavy nuclei (SHN) in reactions with projectiles heavier than Ca48, bearing in mind that numerous calculations show a significant drop in the SHN production cross section when going from Ca48 to heavier projectiles. The mutual comparison of Th production cross sections for Ca48+Yb170 and Cr54+Dy164 reactions allowed us to obtain the CN formation probability imposed by the quasifission effect, which is more inherent in the Cr54+Dy164 reaction as compared to Ca48+Yb170.
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Joint Institute for Nuclear Research, Dubna, RU-141980, Russian Federation
Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
Joint Institute for Nuclear Research
Institute of Nuclear Physics
Institute of Modern Physics
School of Nuclear Science and Technology
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