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

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

2010-01-27

arxiv.org/abs/1001.4847v1

Phys. Rev. C80:067601, 2009

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 figures

Scientific paper

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).

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