Production of heavy isotopes in transfer reactions by collisions of ${}^{238}$U+${}^{238}$U

Abstract

The dynamics of transfer reactions in collisions of two very heavy nuclei ${}^{238}$U+${}^{238}$U is studied within the dinuclear system (DNS) model. Collisions of two actinide nuclei form a super heavy composite system during a very short time, in which a large number of charge and mass transfers may take place. Such reactions have been investigated experimentally as an alternative way for the production of heavy and superheavy nuclei. The role of collision orientation in the production cross sections of heavy nuclides is analyzed systematically. Calculations show that the cross sections decrease drastically with increasing the charged numbers of heavy fragments. The transfer mechanism is favorable to synthesize heavy neutron-rich isotopes, such as nuclei around the subclosure at N=162 from No (Z=102) to Db (Z=105).

4 pages, 4 figures

References in corpus (5)

• Synthesis of superheavies: State of affairs and outlooks
• Formation of superheavy nuclei in cold fusion reactions
• Collision dynamics of two ${}^{238}$U atomic nuclei
• Production of heavy and superheavy nuclei in massive fusion reactions
• Production of new superheavy Z=108-114 nuclei with ${}^{238}$U, ${}^{244}$Pu and ${}^{248,250}$Cm targets

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