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Production of proton-rich nuclei around Z=84-90 in fusion-evaporation reactions

文献类型：期刊论文

作者Chen, Peng-Hui1,2,3; Feng, Zhao-Qing1; Niu, Fei1,4; Guo, Ya-Fei1,2; Zhang, Hong-Fei2; Li, Jun-Qing1; Jin, Gen-Ming1
刊名EUROPEAN PHYSICAL JOURNAL A
出版日期2017-05-16
卷号53页码:15
ISSN号1434-6001
DOI10.1140/epja/i2017-12281-x
英文摘要Within the framework of the dinuclear system model, production cross sections of proton-rich nuclei with charged numbers of Z = 84-90 are investigated systematically. Possible combinations with the Si-28, S-32, Ar-40 bombarding the target nuclides Ho-165, Tm-169, Yb170-174, Lu-175,Lu-176, Hf-174,Hf-176-180 and Ta-181 are analyzed thoroughly. The optimal excitation energies and evaporation channels are proposed to produce the proton-rich nuclei. The systems are feasible to be constructed in experiments. It is found that the neutron shell closure of N = 126 is of importance during the evaporation of neutrons. The experimental excitation functions in the Ar-40 induced reactions can be nicely reproduced. The charged particle evaporation is comparable with neutrons in cooling the excited proton-rich nuclei, in particular for the channels with a and proton evaporation. The production cross section increases with the mass asymmetry of colliding systems because of the decrease of the inner fusion barrier. The channels with pure neutron evaporation depend on the isotopic targets. But it is different for the channels with charged particles and more sensitive to the odd-even effect.
WOS关键词HEAVY-ION COLLISIONS ; PRODUCTION CROSS-SECTIONS ; SUPERHEAVY NUCLEI ; ANGULAR-MOMENTUM ; DINUCLEAR SYSTEM ; MODEL ; DEFORMATIONS ; ELEMENTS ; MASSES
资助项目Major State Basic Research Development Program in China[2014CB845405] ; Major State Basic Research Development Program in China[2015CB856903] ; National Natural Science Foundation of China[11675226] ; National Natural Science Foundation of China[11175218] ; National Natural Science Foundation of China[11675066] ; National Natural Science Foundation of China[U1332207] ; Youth Innovation Promotion Association of Chinese Academy of Sciences
WOS研究方向Physics
语种英语
WOS记录号WOS:000401418000004
出版者SPRINGER
资助机构Major State Basic Research Development Program in China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of Chinese Academy of Sciences
源URL[http://119.78.100.186/handle/113462/44761]  
专题中国科学院近代物理研究所
通讯作者Feng, Zhao-Qing
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
2.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
4.Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Peng-Hui,Feng, Zhao-Qing,Niu, Fei,et al. Production of proton-rich nuclei around Z=84-90 in fusion-evaporation reactions[J]. EUROPEAN PHYSICAL JOURNAL A,2017,53:15.
APA Chen, Peng-Hui.,Feng, Zhao-Qing.,Niu, Fei.,Guo, Ya-Fei.,Zhang, Hong-Fei.,...&Jin, Gen-Ming.(2017).Production of proton-rich nuclei around Z=84-90 in fusion-evaporation reactions.EUROPEAN PHYSICAL JOURNAL A,53,15.
MLA Chen, Peng-Hui,et al."Production of proton-rich nuclei around Z=84-90 in fusion-evaporation reactions".EUROPEAN PHYSICAL JOURNAL A 53(2017):15.

入库方式： OAI收割

来源：近代物理研究所

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