Four-body Coulomb explosion of acetylene in collision with highly charged ions

doi:10.1103/PhysRevA.101.042706

	Four-body Coulomb explosion of acetylene in collision with highly charged ions
	Wang, Yingying 2; Shi, Xiaohua 2; Zhou, Jiaqi 2; Xu, Shenyue 2; Guo, Dalong 1,3; Yan, Shuncheng 1,3; Zhu, Xiaolong 1,3; Ma, Xinwen 1,3
刊名	PHYSICAL REVIEW A
	2020-04-22
卷号	101 期号:4 页码:8
ISSN号	2469-9926
DOI	10.1103/PhysRevA.101.042706
通讯作者	Xu, Shenyue(xushenyue@xjtu.edu.cn) ; Ma, Xinwen(x.ma@impcas.ac.cn)
英文摘要	The dynamics of four-body Coulomb explosion of acetylene in collision with 50 keV/u Ne8+ are investigated by detecting all four ionic fragments and the scattered projectile in quintuple coincidence. Six different breakup channels of C2H2q+ cations with 4 <= q <= 8 are identified. The kinetic energy (KE) distributions of all ionic fragments as well as the total kinetic energy release (KER) distributions are obtained and compared with the calculation results of the point-charge (PC) approximation model for each channel. For symmetric charge distribution channels, the calculations of PC model, in general, agrees well with the peak positions of the measured KER and KE distributions for all three channels with the largest deviation appearing in the breakup of C2H24+. However, for asymmetric charge distribution channels, although the KER values calculated by the PC model for the breakup of C2H25+ and C2H27+ fit very well with experiment, the KEs of the two protons and the two C cations exhibit noticeable discrepancy between experiment and PC model. In addition, it is found that the fragmentation of C2H26+ which may lead to either two C2+ cations or one C+ and one C3+ cation shows a strong preference for symmetric charge distribution between the two C cations.
资助项目	National Key Research and Development Program of China[2017YFA0402300] ; National Natural Science Foundation of China[U1432122] ; National Natural Science Foundation of China[11674332] ; China Post-doctoral Science Foundation[2017M613100]
WOS关键词	MOLECULAR FRAGMENTATION ; MOMENTUM SPECTROSCOPY ; ELECTRON-CAPTURE ; RECOIL-ION ; DISSOCIATION ; CO ; C2H2 ; CH4
WOS研究方向	Optics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000527491100006
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; China Post-doctoral Science Foundation
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/140507]
专题	中国科学院近代物理研究所
通讯作者	Xu, Shenyue; Ma, Xinwen
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Xi An Jiao Tong Univ, Sch Sci, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Xian 710049, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yingying,Shi, Xiaohua,Zhou, Jiaqi,et al. Four-body Coulomb explosion of acetylene in collision with highly charged ions[J]. PHYSICAL REVIEW A,2020,101(4):8.
APA	Wang, Yingying.,Shi, Xiaohua.,Zhou, Jiaqi.,Xu, Shenyue.,Guo, Dalong.,...&Ma, Xinwen.(2020).Four-body Coulomb explosion of acetylene in collision with highly charged ions.PHYSICAL REVIEW A,101(4),8.
MLA	Wang, Yingying,et al."Four-body Coulomb explosion of acetylene in collision with highly charged ions".PHYSICAL REVIEW A 101.4(2020):8.