Dynamics of He2+ + H ionization with exponential cosine-screened Coulomb potential

doi:10.1088/0031-8949/89/8/085402

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	Dynamics of He2+ + H ionization with exponential cosine-screened Coulomb potential
	Zhang, LY 2,3,4,5; Qi, X2,3,5 ; Zhao, XY2,3,5 ; Zhang, XC2,3,5 ; Xiao, GQ2,3,5 ; Duan, WS 2,3,5; Yang, L1,2,3,5 ; Qi, X (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
刊名	PHYSICA SCRIPTA
	2014
卷号	89 页码:085402
关键词	Heavy-particle Impact Ionization Plasma Screening Effect Exponential Cosine-screened Coulomb Potential Classical Trajectory Monte Carlo Method
DOI	10.1088/0031-8949/89/8/085402
英文摘要	Dynamics of He2+ + H ionization in dense quantum plasmas (DQPs) has been studied by the classical trajectory Monte Carlo method. The interactions between charged particles have been described by the exponential cosine-screened Coulomb potential. It is found that ionization cross sections in plasma environments are obviously larger than those in plasma-free environments due to the screening effects. Cross sections for H+ also have been calculated for comparison. For H+, cross sections increase with the increase of screening effects. However, for He2+, cross sections begin to decrease in strong screening effects at intermediate energies. Furthermore, He2+ impact ionization cross sections in weakly coupled plasmas (WCPs) also have been calculated. The interactions have been described by the static screened Coulomb potential. It is found that when screening effects are weak, cross sections in DQPs and WCPs are approximately the same. As screening effects increase, cross sections in DQPs become larger than those in WCPs at high energies. However, when screening effects are strong enough, cross sections in DQPs become smaller than those in WCPs at low and intermediate energies.
语种	英语
WOS记录号	WOS:000343295000026
资助机构	Strategic Priority Research Program of the Chinese Academy of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.impcas.ac.cn/handle/113462/23376]
专题	近代物理研究所_兰州重离子研究装置
通讯作者	Qi, X (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
作者单位	1.Lanzhou Univ, Dept Phys, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Northwest Normal Univ, IMP, Lanzhou 730070, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Northwest Normal Univ, NWNU, Joint Lab Atom Mol Phys, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Zhang, LY,Qi, X,Zhao, XY,et al. Dynamics of He2+ + H ionization with exponential cosine-screened Coulomb potential[J]. PHYSICA SCRIPTA,2014,89:085402.
APA	Zhang, LY.,Qi, X.,Zhao, XY.,Zhang, XC.,Xiao, GQ.,...&Qi, X .(2014).Dynamics of He2+ + H ionization with exponential cosine-screened Coulomb potential.PHYSICA SCRIPTA,89,085402.
MLA	Zhang, LY,et al."Dynamics of He2+ + H ionization with exponential cosine-screened Coulomb potential".PHYSICA SCRIPTA 89(2014):085402.