Super-heavy nuclei with Z = 118 and their mass and charge spectrum of fission fragments

Institute of Electron Physics - Universitetska str., 21, 88017 Uzhhorod, Ukraine

^(a) nuclear@iep.org.ua

Received: 25 September 2015
Accepted: 24 November 2015

Abstract

The first results of the calculation of the mass and charge yields of fission fragments for over 60 isotopes which have Z = 118 are presented. The results were obtained from the condition of thermodynamic ordering of the ensemble of fission fragments. The role of neutrons shells with N = 82 or N = 126 and protons shells with Z = 50 in the realization of symmetric (or one-humped) and asymmetric (2- or 3-humped) shapes of the fission-fragment yields with the transition from neutron-proficient to neutron-deficient isotopes was investigated. The data of fragments yields had been analyzed under the conditions of a “cold” and “hot” fission. The calculations show the possibility to identify super-heavy nuclei with Z ≥ 118 produced synthetically by heavy-ion reaction on their mass/charge spectrum division.