Ab initio QED Treatment of the Two-Photon Annihilation of Positrons with Bound Electrons

doi:10.1103/PhysRevLett.123.093401

	Ab initio QED Treatment of the Two-Photon Annihilation of Positrons with Bound Electrons
	Zaytsev, V. A.1; Shabaev, V. M.1; Hu, H.6; Ma, X.4; Fritzsche, S.2,3,5; Yu, D.4; Volotka, A. V.1,2,3
刊名	PHYSICAL REVIEW LETTERS
	2019-08-26
卷号	123 期号:9 页码:5
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.123.093401
通讯作者	Zaytsev, V. A.()
英文摘要	The process of a positron-bound-electron annihilation with simultaneous emission of two photons is investigated theoretically. A fully relativistic formalism based on an ab initio QED description of the process is worked out. The developed approach is applied to evaluate the annihilation of a positron with K-shell electrons of a silver atom, for which a strong contradiction between theory and experiment was previously stated. The results obtained here resolve this longstanding disagreement and, moreover, demonstrate a sizable difference with approaches so far used for calculations of the positron-bound-electron annihilation process, namely, Lee's and the impulse approximations.
资助项目	RFBR-NSFC[17-52-53136] ; RFBR-NSFC[11611530684] ; DFG[VO1707/1-3] ; CAS President International Fellowship Initiative (PIFI) ; NSFC[11774415] ; Russian Federation[MK-4468.2018.2] ; SPbSU[TRAIN 2018: 34825432] ; SPbSU-DFG[11.65.41.2017] ; SPbSU-DFG[STO 346/5-1]
WOS关键词	IN-FLIGHT ; RADIATION ; EMISSION
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000482586300002
资助机构	RFBR-NSFC ; DFG ; CAS President International Fellowship Initiative (PIFI) ; NSFC ; Russian Federation ; SPbSU ; SPbSU-DFG
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/132732]
专题	中国科学院近代物理研究所
通讯作者	Zaytsev, V. A.
作者单位	1.St Petersburg State Univ, Dept Phys, Univ Skaya Naberezhnaya 7-9, St Petersburg 199034, Russia 2.Helmholtz Inst Jena, Frobelstieg 3, D-07743 Jena, Germany 3.GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 5.Friedrich Schiller Univ Jena, Theoret Phys Inst, D-07743 Jena, Germany 6.China Aerodynam Res & Dev Ctr, Hyperveloc Aerodynam Inst, Mianyang 621000, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Zaytsev, V. A.,Shabaev, V. M.,Hu, H.,et al. Ab initio QED Treatment of the Two-Photon Annihilation of Positrons with Bound Electrons[J]. PHYSICAL REVIEW LETTERS,2019,123(9):5.
APA	Zaytsev, V. A..,Shabaev, V. M..,Hu, H..,Ma, X..,Fritzsche, S..,...&Volotka, A. V..(2019).Ab initio QED Treatment of the Two-Photon Annihilation of Positrons with Bound Electrons.PHYSICAL REVIEW LETTERS,123(9),5.
MLA	Zaytsev, V. A.,et al."Ab initio QED Treatment of the Two-Photon Annihilation of Positrons with Bound Electrons".PHYSICAL REVIEW LETTERS 123.9(2019):5.