Photofragmentation of large dimers into singly charged ions via the knockout mechanism

doi:10.1103/PhysRevA.104.033104

	Photofragmentation of large dimers into singly charged ions via the knockout mechanism
	Najjari, B.1; Voitkiv, A. B.2
刊名	PHYSICAL REVIEW A
	2021-09-08
卷号	104 期号:3 页码:12
ISSN号	2469-9926
DOI	10.1103/PhysRevA.104.033104
通讯作者	Najjari, B.()
英文摘要	We study the fragmentation of very large dimers into two singly charged ions caused by absorption of a photon. In this process a photoelectron emitted from one atom of the dimer has certain chances to hit the other atom, knocking out one of its electrons. This results in the production of two singly charged ions and the consequent Coulomb explosion of the residual doubly charged system. We develop a theory of this process and apply it to calculate the fragmentation of He-4(2), Li-7-He-4, and Li-6-He-4 dimers. Our results for the helium dimer are in good agreement with available experimental data. For the Li-He dimers (where experimental data are still absent) our results predict that this fragmentation mechanism becomes much more efficient than in the case of He-2. We also show that, provided the recoil effects are of minor importance, the so-called reflection approximation is very accurate also for large dimers.
资助项目	CAS President's Fellowship Initiative
WOS关键词	INTERATOMIC COULOMBIC DECAY ; ENERGY-TRANSFER ; IONIZATION ; COLLISION ; IMPACT ; ATOMS
WOS研究方向	Optics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000694043100008
资助机构	CAS President's Fellowship Initiative
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/136454]
专题	中国科学院近代物理研究所
通讯作者	Najjari, B.
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Heinrich Heine Univ Dusseldorf, Inst Theoret Phys 1, Univ Str 1, D-40225 Dusseldorf, Germany
推荐引用方式 GB/T 7714	Najjari, B.,Voitkiv, A. B.. Photofragmentation of large dimers into singly charged ions via the knockout mechanism[J]. PHYSICAL REVIEW A,2021,104(3):12.
APA	Najjari, B.,&Voitkiv, A. B..(2021).Photofragmentation of large dimers into singly charged ions via the knockout mechanism.PHYSICAL REVIEW A,104(3),12.
MLA	Najjari, B.,et al."Photofragmentation of large dimers into singly charged ions via the knockout mechanism".PHYSICAL REVIEW A 104.3(2021):12.