Survival probabilities of compound superheavy nuclei towards element 119

Release time:2026-01-21 Hits:

Impact Factor:4.5

Journal:Physics Letters B

Key Words:superheavy element 119, Survival probabilities, Finite temperature Hartree-Fock-Bogoliubov, triaxial deformation

Abstract:To synthesize superheavy element 119 is becoming a highly concerned issue as several experimental projects in major laboratories are being pursued. This work studied the survival probabilities of compound superheavy nuclei after multiple neutron emissions based on microscopic energy dependent fission barriers, demonstrating a significant role of triaxial deformation in decreasing the first fission barriers in the heaviest region. Together with the fusion cross sections by the dinuclear system model, the optimal energy and the residual cross section of 243Am(48Ca, 3��)288Mc are reproduced. Finally the cross sections and optimal beam energies of 54Cr+243Am and 50Ti+249Bk reactions are estimated, providing clues for the synthesis of new elements.

Co-author:C.Y. Qiao,Yue Shi,Xiang-Quan Deng

First Author:Yu Qiang

Indexed by:Journal paper

Correspondence Author:Junchen Pei

First-Level Discipline:Physics

Document Type:J

Translation or Not:no

Included Journals:SCI

Links to published journals:https://doi.org/10.1016/j.physletb.2024.139057