Order α^4 R_{\infty} corrections to positronium P levels

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dc.creatorKhriplovich, I. B.
dc.creatorMilstein, A. I.
dc.creatorYelkhovsky, A. S.
dc.date1993-09-21
dc.date1993-09-27
dc.date.accessioned2026-07-07T08:59:52Z
dc.date.available2026-07-07T08:59:52Z
dc.descriptionThe order $α^4 R_{\infty}$ corrections to positronium $P$ levels are found. The calculation is reduced to the ordinary perturbation theory for the nonrelativistic Schrödinger equation. The perturbation operators have the Breit-type structure and are obtained by calculating on-mass-shell diagrams. Found energy corrections constitute numerically $δE(2 ^1 P_1)=0.06$ MHz, $δE(2 ^3 P_2)=0.08$ MHz, $δE(2 ^3 P_1)=0.025$ MHz, $δE(2 ^3 P_2)=-0.58$ MHz.
dc.descriptionLaTeX, 15 pages, BudkerINP-93-80
dc.identifierhttps://arxiv.org/abs/hep-ph/9309302
dc.identifierhttp://arxiv.org/abs/hep-ph/9309302
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/147873
dc.subjectHigh Energy Physics - Phenomenology
dc.titleOrder α^4 R_{\infty} corrections to positronium P levels
dc.typetext

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