Random forest-based prediction of decay modes and half-lives of superheavy nuclei

作     者：Bo‑Shuai Cai Cen‑Xi Yuan Bo-Shuai Cai;Cen-Xi Yuan

作者机构：Sino‑French Institute of Nuclear Engineering and TechnologySun Yat-sen UniversityZhuhai 519082China 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2023年第34卷第12期

页      面：271-280页

核心收录：

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学] 081104[工学-模式识别与智能系统] 0903[农学-农业资源与环境] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 0901[农学-作物学] 0835[工学-软件工程] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the Guangdong Major Project of Basic and Applied Basic Research under Grant No. 2021B0301030006 the computational resources from SYSU and the National Supercomputer Center in Guangzhou 

主　　题：Decay mode Superheavy nuclide Random forest 

摘      要：Information on the decay process of nuclides in the superheavy region is critical in investigating new elements beyond oganesson and the island of *** paper presents the application of a random forest algorithm to examine the competition among different decay modes in the superheavy region,includingα decay,β^(-)decay,β^(+)decay,electron capture and spontaneous *** observed half-lives and dominant decay mode are well *** dominant decay mode of 96.9%of the nuclei beyond ^(212) Po is correctly ***,α decay is predicted to be the dominant decay mode for isotopes in new elements Z=119-122,except for spontaneous fission in certain even–even elements owing to the increased Coulomb repulsion and odd–even *** predicted half-lives demonstrate the existence of a long-lived spontaneous fission island southwest of ^(298) Fl caused by the competition between the fission barrier and Coulomb repulsion.A better understanding of spontaneous fission,particularly beyond ^(286)Fl,is crucial in the search for new elements and the island of stability.