Production of p-rich nuclei with Z = 20-25 based on radioactive ion beams  

作　　者：Bing Li Na Tang Yu-Hai Zhang Feng-Shou Zhang 

机构地区：[1]Key Laboratory of Beam Technology of the Ministry of Education,College of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China [2]Institute of Radiation Technology,Beijing Academy of Science and Technology,Beijing 100875,China [3]Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China

出　　处：《Nuclear Science and Techniques》2022年第5期30-38,共9页核技术（英文）

基　　金：Supported by the National Natural Science Foundation of China(No.12135004,No.11635003 and No.11961141004)。

摘　　要：Within the framework of isospin-dependent Boltzmann-Langevin model,the production cross sections of proton-rich nuclei with Z=20-25 are investigated.According to the reaction results for different isospin of projectiles^(48)Ni,^(49)Ni,and^(50)Ni,proton-rich fragments tend to be more easily produced in reactions with the protonrich projectile^(48)Ni.The production cross sections of the unknown nuclei in the vicinity of the projectile are sensitive to incident energy.It is observed that incident energy of 345 MeV/u is appropriate for producing proton-rich nuclei with Z=20-25.In projectile fragmentation reactions based on the radioactive ion beam of48Ni at 345MeV/u,several unknown proton-rich nuclei near the proton drip line are generated in the simulations.All these new nuclei are near-projectile elements near Z=28.The production cross sections of the new nuclei^(34)Ca,37,38Sc,^(38)Ti,^(40,41,42)V,^(40,41)Cr,and^(42,43,44,45)Mn are in the range of 10-2-102mb.Hence,projectile fragmentation of radioactive ion beams of Ni is a potential method for generating new proton-rich nuclei with Z=20-25.

关 键 词：Production cross sections Radioactive ion beams Isospin-dependent Boltzmann-Langevin model 

分 类 号：O571[理学—粒子物理与原子核物理]