Two-body dissipation effects on synthesis of superheavy elements

TL;DR

This paper investigates how two-body dissipation influences the synthesis of superheavy elements by analyzing low-energy nuclear collisions with an advanced theoretical model, revealing potential increases in fusion cross sections.

Contribution

It applies the time-dependent density-matrix theory (TDDM) to study two-body dissipation effects in superheavy element synthesis, extending beyond traditional models.

Findings

Two-body dissipation can increase fusion cross sections.

TDDM effectively models both one-body and two-body dissipation.

Enhanced synthesis prospects for superheavy elements.

Abstract

To investigate the two-body dissipation effects on the synthesis of superheavy elements, we calculate low-energy collisions of the $N=50$ isotones ($^{82}$Ge, $^{84}$Se, $^{86}$Kr and $^{88}$Sr) on $^{208}$Pb using the time-dependent density-matrix theory (TDDM). TDDM is an extension of the time-dependent Hartree-Fock (TDHF) theory and can determine the time evolution of one-body and two-body density matrices. Thus TDDM describes both one-body and two-body dissipation of collective energies. It is shown that the two-body dissipation may increase fusion cross sections and enhance the synthesis of superheavy elements.