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Confined variational calculation of o-Ps-He scattering properties

文献类型：期刊论文

作者Wu, M-S5; Zhang, J-Y5,6,7; Gao, X.6; Qian, Y.1; Xie, H-H4; Varga, K.2; Yan, Z-C3,5; Schwingenschlog, U.7
刊名PHYSICAL REVIEW A
出版日期2020-04-21
卷号101期号:4页码:6
ISSN号2469-9926
DOI10.1103/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
WOS记录号WOS:000527116900004
出版者AMER PHYSICAL SOC
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.East China Normal Univ, Dept Comp Sci & Technol, Shanghai 200062, 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, Acad Math & Syst Sci, ICMSEC, LSEC, Beijing 100190, Peoples R China
5.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China
6.Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China
7.King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia
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.

入库方式： OAI收割

来源：数学与系统科学研究院

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