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

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

CORC > 近代物理研究所 > 中国科学院近代物理研究所 > 兰州重离子研究装置

	Dynamics of He2+ + H ionization with exponential cosine-screened Coulomb potential
	Zhang, Ling-yu 1,2,3,4; Xiao, Guo-qing1,2,3 ; Yang, Lei1,2,3,5 ; Duan, Wen-shan 1,2,3; Zhang, Xun-chao1,2,3 ; Zhao, Xiao-ying1,2,3 ; Qi, Xin1,2,3
	2014-08
关键词	heavy-particle impact ionization plasma screening effect exponential cosine-screened Coulomb potential classical trajectory Monte Carlo method
卷号	89
期号	8
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.
会议录	PHYSICA SCRIPTA
会议录出版者	IOP PUBLISHING LTD
会议录出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
语种	英语
资助项目	National Natural Science Foundation of China[112 751 56] ; National Natural Science Foundation of China[910 260 05] ; National Natural Science Foundation of China[110 470 10]
WOS研究方向	Physics
WOS记录号	WOS:000343295000026
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/58344]
专题	近代物理研究所_兰州重离子研究装置
通讯作者	Qi, Xin
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Northwest Normal Univ, NWNU, Joint Lab Atom Mol Phys, Lanzhou 730070, 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.Lanzhou Univ, Dept Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ling-yu,Xiao, Guo-qing,Yang, Lei,et al. Dynamics of He2+ + H ionization with exponential cosine-screened Coulomb potential[C]. 见:.