Possibility of synthesizing a doubly magic superheavy nucleus

Y. Aritomo
Phys. Rev. C 75, 024602 – Published 7 February 2007

Abstract

The possibility of synthesizing a doubly magic superheavy nucleus, 298114184, is investigated on the basis of fluctuation-dissipation dynamics. In order to synthesize this nucleus, we must generate more neutron-rich compound nuclei because of the neutron emissions from excited compound nuclei. The compound nucleus 304114 has two advantages to achieving a high survival probability. First, because of low neutron separation energy and rapid cooling, the shell correction energy recovers quickly. Secondly, owing to neutron emissions, the neutron number in the nucleus approaches that of the double closed shell and the nucleus attains a large fission barrier. Because of these two effects, the survival probability of 304114 does not decrease until the excitation energy E*=50 MeV. These properties lead to a rather high evaporation residue cross section.

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  • Received 16 September 2006

DOI:https://doi.org/10.1103/PhysRevC.75.024602

©2007 American Physical Society

Authors & Affiliations

Y. Aritomo

  • Flerov Laboratory of Nuclear Reactions, JINR, Dubna, Russia

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Issue

Vol. 75, Iss. 2 — February 2007

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