Investigation on the 48Ca+249-252Cf reactions synthesizing isotopes of the superheavy element 118

Abstract

The study of the ${}^{48}$Ca+${}^{249,250,251,252}$Cf reactions in a wide energy interval around the external barrier has been achieved with the aim of investigating the dynamical effects of the entrance channel via the ${}^{48}$Ca induced reactions on the ${}^{249-252}$Cf targets and to analyze the influence of odd and even neutron composition in target on the capture, quasifission and fusion cross sections. Moreover, we also present the results of the individual evaporation residue excitation functions obtained from the de-excitation cascade of the various even-odd and even-even ${}^{297-300}$118 superheavy compound nuclei reached in the studied reactions, and we compare our results of the ${}^{294}$118 evaporation residue yields obtained in the synthesis process of the ${}^{48}$Ca+${}^{249,250}$Cf reactions with the experimental data obtained in the ${}^{48}$Ca+${}^{249}$Cf experiment carried out at the Flerov Laboratory of Nuclear Reactions of Dubna.

10 pages, 14 figures, Accepted for publication in Phys. Rev. C

References in corpus (2)

• Synthesis of superheavies: State of affairs and outlooks
• Quasifission and fusion-fission in massive nuclei reactions. Comparison of reactions leading to the Z=120 element

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• Optimal colliding energy for the synthesis of superheavy element $Z$=119
• Uncertainties and understanding of experimental and theoretical results regarding reactions forming heavy and superheavy nuclei
• A new dynamical mechanism of incomplete fusion in heavy-ion collision
• Small cross section of the synthesis of darmstadtium in the ${}^{48}$Ca+${}^{232}$Th reaction
• Measurements of evaporation residue cross-sections and evaporation residue-gated $\gamma$-ray fold distributions for ${}^{32}$S+${}^{154}$Sm system
• Investigation of the formation of superheavy elements with atomic numbers 116 and 120 through ${}^{50}$Ti-induced reaction