Theoretical predictions on cluster radioactivity of superheavy nuclei with Z=119,120

作     者：刘洁洁 王震 张涵韬 任中洲 Jiejie Liu;Zhen Wang;Hantao Zhang;Zhongzhou Ren

作者机构：School of Physics Science and EngineeringTongji UniversityShanghai 200092China Key Laboratory of Advanced Micro-Structure MaterialsMinistry of EducationShanghai 200092China 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2024年第48卷第1期

页      面：125-137页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China(12035011,11975167,11947211,11905103,11881240623,11961141003) the National Key R&D Program of China(2018YFA0404403) 

主　　题：cluster radioactivity superheavy nuclei density-dependent cluster model 

摘      要：In this study,we investigate the cluster radioactivity(CR)of new superheavy elements with Z=119 and 120 based on two successful theoretical methods with modified parameters:the density-dependent cluster model(DDCM)and unified decay formula(UDF).First,we employ the DDCM and UDF to accurately reproduce the experimental half-lives of cluster emissions,which demonstrates the high reliability of our theoretical ***,we systematically predict the probable cluster modes of ^(293-311)119 and ^(293-302)120 as well as their corresponding decay energies and *** half-lives of cluster decay derived from the DDCM are consistent with those from the ***,our results reveal that the cluster emission of ^(8)Be,emitted from the Z=119 and 120 isotopic chains,exhibits the minimum half-life for cluster emission,and hence,^(8)Be emission is considered the most probable cluster decay ***,we explore the competition betweenαdecay and CR and find thatαdecay may be the dominant decay mode against ***,the good linear relationship between the decay energy and the number ofαparticles within the emitted cluster is extended to the range of superheavy nuclei(SHN).We anticipate that our theoretical predictions for CR will provide valuable references for the experimental synthesis of new SHN.