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S-wave elastic scattering of o-Ps from H-2 at low energy

文献类型：期刊论文

作者Zhang, J-Y1,2,7; Wu, M-S7; Qian, Y.3; Gao, X.1; Yang, Y-J4; Varga, K.6; Yan, Z-C5,7; Schwingenschlogl, U.2
刊名PHYSICAL REVIEW A
出版日期2019-09-03
卷号100期号:3页码:6
ISSN号2469-9926
DOI10.1103/PhysRevA.100.032701
英文摘要The confined variational method is applied to investigate the low-energy elastic scattering of orthopositronium from H-2 by first-principles quantum mechanics. Describing the correlations with explicitly correlated Gaussians, we obtain accurate s-wave phase shifts and pickoff annihilation parameters for different incident momenta. By a least-squares fit of the data to the effective-range theory, we determine the s-wave scattering length A(s) = 2.02a(0) and the zero-energy value of the pickoff annihilation parameter, (1)Z(eff) = 0.1839. The obtained (1)Z(eff) agrees well with the precise experimental value of 0.186(1) [G. L. Wright et al., J. Phys. B 16, 4065(1983)] and the obtained A s agrees well with the value of 2.1(2)a(0) estimated from the average experimental momentum-transfer cross section for positronium energy below 0.3 eV [F. Saito et al., J. Phys. B 36, 4191 (2003)].
WOS关键词POSITRON-HYDROGEN SCATTERING ; ANNIHILATION ; STATE
资助项目"Hundred Talents Program" of the Chinese Academy of Sciences ; NSERC of Canada ; CAS/SAFEA International Partnership Program for Creative Research Teams ; King Abdullah University of Science and Technology
WOS研究方向Optics ; Physics
语种英语
WOS记录号WOS:000483578600013
出版者AMER PHYSICAL SOC
资助机构"Hundred Talents Program" of the Chinese Academy of Sciences ; "Hundred Talents Program" of the Chinese Academy of Sciences ; NSERC of Canada ; NSERC of Canada ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; King Abdullah University of Science and Technology ; King Abdullah University of Science and Technology ; "Hundred Talents Program" of the Chinese Academy of Sciences ; "Hundred Talents Program" of the Chinese Academy of Sciences ; NSERC of Canada ; NSERC of Canada ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; King Abdullah University of Science and Technology ; King Abdullah University of Science and Technology ; "Hundred Talents Program" of the Chinese Academy of Sciences ; "Hundred Talents Program" of the Chinese Academy of Sciences ; NSERC of Canada ; NSERC of Canada ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; King Abdullah University of Science and Technology ; King Abdullah University of Science and Technology ; "Hundred Talents Program" of the Chinese Academy of Sciences ; "Hundred Talents Program" of the Chinese Academy of Sciences ; NSERC of Canada ; NSERC of Canada ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; King Abdullah University of Science and Technology ; King Abdullah University of Science and Technology
源URL[http://ir.wipm.ac.cn/handle/112942/14936]  
专题中国科学院武汉物理与数学研究所
通讯作者Zhang, J-Y; Schwingenschlogl, U.
作者单位1.Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China
2.King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia
3.East China Normal Univ, Dept Comp Sci & Technol, Shanghai 200062, Peoples R China
4.Jilin Univ, Inst Atom & Mol Phys, Changchun 130012, Jilin, Peoples R China
5.Univ New Brunswick, Dept Phys, Fredericton, NB E3B 5A3, Canada
6.Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA
7.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, J-Y,Wu, M-S,Qian, Y.,et al. S-wave elastic scattering of o-Ps from H-2 at low energy[J]. PHYSICAL REVIEW A,2019,100(3):6.
APA Zhang, J-Y.,Wu, M-S.,Qian, Y..,Gao, X..,Yang, Y-J.,...&Schwingenschlogl, U..(2019).S-wave elastic scattering of o-Ps from H-2 at low energy.PHYSICAL REVIEW A,100(3),6.
MLA Zhang, J-Y,et al."S-wave elastic scattering of o-Ps from H-2 at low energy".PHYSICAL REVIEW A 100.3(2019):6.

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来源：武汉物理与数学研究所

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