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

doi:10.1140/epja/i2017-12281-x

	Production of proton-rich nuclei around Z=84-90 in fusion-evaporation reactions
	Chen, Peng-Hui 1,2,3; Feng, Zhao-Qing1 ; Niu, Fei 1,4; Guo, Ya-Fei 1,2; Zhang, Hong-Fei 2; Li, Jun-Qing 1; Jin, Gen-Ming 1
刊名	EUROPEAN PHYSICAL JOURNAL A
	2017-05-16
卷号	53 页码:15
ISSN号	1434-6001
DOI	10.1140/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.
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关键词	HEAVY-ION COLLISIONS ; PRODUCTION CROSS-SECTIONS ; SUPERHEAVY NUCLEI ; ANGULAR-MOMENTUM ; DINUCLEAR SYSTEM ; MODEL ; DEFORMATIONS ; ELEMENTS ; MASSES
WOS研究方向	Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000401418000004
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
内容类型	期刊论文
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.