Fission of super-heavy elements: ${}^{132}$Sn-plus-the-rest, or ${}^{208}$Pb-plus-the-rest ?

Abstract

In this work we try to settle down the controversial predictions on the effect of doubly magic nuclei ${}^{132}$Sn and ${}^{208}$Pb on the mass distributions of fission fragments of super-heavy nuclei. For this we have calculated the mass distribution of super-heavy nuclei from ${}^{286}$Cn to ${}^{306}$122 within the dynamical 4-dimensional Langevin approach. We have found that in "light" super-heavies the influence of ${}^{208}$Pb on the mass distributions is present but negligible small. In "heavy" super-heavies, Z=120-122, the (quasi)symmetric peaks and strongly asymmetric peaks at fragment mass $A_F$ close to $A_F$=208 are of comparable magnitude.

4 pages, 4 figures

References in corpus (2)

• A 4-dimensional Langevin approach to low-energy nuclear fission of ${}^{236}$U
• Analysis of the total kinetic energy of fission fragments with the Langevin equation

Cited by in corpus (5)

• Comparison of fission and quasi-fission modes
• Time-dependent Hartree-Fock study of quasifission trajectories in reactions forming ${}^{294}$Og
• Dependence of total kinetic energy of fission fragments on the excitation energy of fissioning systems
• Dynamical mechanism of fusion hindrance in heavy ion collisions
• Connection of four-dimensional Langevin model and Hauser-Feshbach theory to describe statistical decay of fission fragments