TY - JOUR
T1 - Two-loop electron factor contribution to lamb shift in muonium and positronium
AU - Eides, Michael I.
AU - Shelyuto, Valery A.
N1 - Publisher Copyright:
© 2023 The Author(s)
PY - 2023/9/10
Y1 - 2023/9/10
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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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 -