Work

Concentrated valence nucleons transfer in heavy-ion collisions: Implications for the discovery of stable superheavy elements

Year: 2025

Type: article

Abstract: The multinucleon transfer process is regarded as a promising pathway for producing the stable superheavy elements. However, the underlying mechanism, especially the possible transfer channels for sailing to the ``island of stability'' are poorly known. In this work, the time-dependent Hartree-Fock theory is used to investigate the collision dynamics of $^{136}\mathrm{Xe}, ^{198}\mathrm{Pt}, ^{238}\mathrm{U}+^{238}\mathrm{U}$ reactions. A novel reaction channel of the concentrated valence nucleons (CVN) transferring is found in the collisions heading on the tips of $^{238}\mathrm{U}$. These nucleons are transferred with relatively short relaxation time and break the symmetry of nucleon exchange in the early reaction stage. In consequence, the mass equilibrium with relaxation time is deviated from the systematic behavior based on the macroscopic-microscopic potential energy surface. The CVN transfer channel shows promising prospect for producing neutron-rich superheavy nuclei. In this case, we also investigated the angular distributions of products from the CVN transfer channel in the reaction $^{238}\mathrm{U}+^{238}\mathrm{U}$ with tip-side configuration, and the optimal detection angles are predicted.

Source: Physical Review C

DOI: 10.1103/wr7j-72w4

Authors: Zepeng Gao, Yinu Zhang, Long Zhu

Institutions: Sun Yat-sen University, Guangxi Normal University

Language: English

Topic: Nuclear physics research studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Natural Science Foundation of China, Fundamental Research Funds for the Central Universities

Awards: G3367527538, G581418908