Confined variational calculation of o-Ps-He scattering properties

doi:10.1103/PhysRevA.101.042705

	Confined variational calculation of o-Ps-He scattering properties
	Wu, M-S 4; Zhang, J-Y 4,5,6; Gao, X.6; Qian, Y.7; Xie, H-H 1; Varga, K.2; Yan, Z-C 3,4; Schwingenschlog, U.5
刊名	PHYSICAL REVIEW A
	2020-04-21
卷号	101 期号:4 页码:6
ISSN号	2469-9926
DOI	10.1103/PhysRevA.101.042705
英文摘要	High-precision quantum-mechanical calculations have been developed to investigate positronium (Ps) scattering. Positronium scattering experiments are a powerful tool to study positronium-matter interactions, but the theoretical description of these experiments needs better accuracy. We have developed an ab initio confined variational approach that can reach higher collision energy, includes higher orbital momenta and uses small confining radii. Calculation of the Ps-He momentum-transfer cross section shows that the experimental Doppler broadening spectroscopy results are questionable. The energy dependence of the pickoff annihilation rate is also calculated, demonstrating an important role of the so far neglected P-wave contribution.
资助项目	National Natural Science Foundation of China[11704399] ; Hundred Talents Program of the Chinese Academy of Sciences ; NSERC of Canada ; Chinese Academy of Sciences within the CAS/SAFEA International Partnership Program for Creative Research Teams ; King Abdullah University of Science and Technology (KAUST)
WOS研究方向	Optics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000527116900004
内容类型	期刊论文
源URL	[http://ir.amss.ac.cn/handle/2S8OKBNM/51148]
专题	中国科学院数学与系统科学研究院
通讯作者	Zhang, J-Y
作者单位	1.Chinese Acad Sci, Acad Math & Syst Sci, ICMSEC, LSEC, Beijing 100190, Peoples R China 2.Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA 3.Univ New Brunswick, Dept Phys, Fredericton, NB E3B 5A3, Canada 4.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 5.King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia 6.Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China 7.East China Normal Univ, Dept Comp Sci & Technol, Shanghai 200062, Peoples R China
推荐引用方式 GB/T 7714	Wu, M-S,Zhang, J-Y,Gao, X.,et al. Confined variational calculation of o-Ps-He scattering properties[J]. PHYSICAL REVIEW A,2020,101(4):6.
APA	Wu, M-S.,Zhang, J-Y.,Gao, X..,Qian, Y..,Xie, H-H.,...&Schwingenschlog, U..(2020).Confined variational calculation of o-Ps-He scattering properties.PHYSICAL REVIEW A,101(4),6.
MLA	Wu, M-S,et al."Confined variational calculation of o-Ps-He scattering properties".PHYSICAL REVIEW A 101.4(2020):6.