Two-loop electron factor contribution to lamb shift in muonium and positronium

Michael I. Eides; Valery A. Shelyuto

doi:10.1016/j.physletb.2023.138087

Two-loop electron factor contribution to lamb shift in muonium and positronium

Michael I. Eides
, Valery A. Shelyuto

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We calculate hard spin-independent contributions to energy levels in muonium and positronium which are due to radiatively corrected electron factor insertion in two-photon exchange diagrams. Calculation of these corrections is motivated by the new round of precise measurements of spin-independent transition frequencies in muonium and positronium.

Original language	English
Article number	138087
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	844
DOIs	https://doi.org/10.1016/j.physletb.2023.138087
State	Published - Sep 10 2023

Bibliographical note

Publisher Copyright:
© 2023 The Author(s)

Funding

Work of M. I. Eides was supported by the NSF grant PHY-2011161 .

Funders	Funder number
National Science Foundation Arctic Social Science Program	2011161, PHY-2011161

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2023.138087

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title = "Two-loop electron factor contribution to lamb shift in muonium and positronium",

abstract = "We calculate hard spin-independent contributions to energy levels in muonium and positronium which are due to radiatively corrected electron factor insertion in two-photon exchange diagrams. Calculation of these corrections is motivated by the new round of precise measurements of spin-independent transition frequencies in muonium and positronium.",

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AU - Eides, Michael I.

AU - Shelyuto, Valery A.

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N2 - We calculate hard spin-independent contributions to energy levels in muonium and positronium which are due to radiatively corrected electron factor insertion in two-photon exchange diagrams. Calculation of these corrections is motivated by the new round of precise measurements of spin-independent transition frequencies in muonium and positronium.

AB - We calculate hard spin-independent contributions to energy levels in muonium and positronium which are due to radiatively corrected electron factor insertion in two-photon exchange diagrams. Calculation of these corrections is motivated by the new round of precise measurements of spin-independent transition frequencies in muonium and positronium.

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UR - https://www.scopus.com/pages/publications/85166241500#tab=citedBy

U2 - 10.1016/j.physletb.2023.138087

DO - 10.1016/j.physletb.2023.138087

M3 - Article

AN - SCOPUS:85166241500

SN - 0370-2693

VL - 844

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 138087

ER -

Two-loop electron factor contribution to lamb shift in muonium and positronium

Abstract

Bibliographical note

Funding

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