Possibility of synthesizing Z=119 superheavy nuclei with Z>20 projectiles  

作　　者：Hao Zhu Tian-Liang Zhao Xiao Jun Bao 朱世豪;赵天亮;包小军(Department of Physics,Collaborative Innovation Center for Quantum Effects,and Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education,Hunan Normal University,Changsha 410081,China)

机构地区：[1]Department of Physics,Collaborative Innovation Center for Quantum Effects,and Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education,Hunan Normal University,Changsha 410081,China

出　　处：《Chinese Physics C》2024年第12期151-157,共7页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(12175064,U2167203)and the Outstanding Youth Science Foundation of Hunan Province,China(2022JJ10031)。

摘　　要：We employ the dinuclear system(DNS)model combined with a statistical model to calculate the evaporation residue cross sections of the reaction systems ^(48)Ca+^(243)Am,^(48)Ca+^(248)Cm,and ^(48)Ca+^(249)Bk.The theoretical results successfully reproduce the experimental trends in the 3n and 4n evaporation channels of these reaction systems.To synthesize the new element,we predict the evaporation residue cross sections for three reaction systems(^(54)Cr+^(243)Am,^(51)V+^(248)Cm,and ^(50)Ti+^(249)Bk)to select the most promising projectile-target combinations.We also note that the maximum cross sections predicted by our model and other methods appear to be below the detection limits of current experimental facilities,given the projectile-target combinations feasible under current experimental conditions.Therefore,synthesizing superheavy nuclei with Z=119 will require improvements in beam intensity,detection techniques,and effective separation methods.

关 键 词：superheavy nuclei evaporation residue cross sections dinuclear system model 

分 类 号：O571[理学—粒子物理与原子核物理]