Single-transverse-photon contributions of order [alpha][sup 6]ln ([alpha]) to the energy levels of positronium

Journal Article · Fri Oct 01 04:00:00 EDT 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.48.2634· OSTI ID:6037563

Fell, R N ^[1]

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1. Physics Department, Brandeis University, Waltham, Massachusetts 02254 (United States)

Some of the calculational techniques used to compute the order [alpha][sup 6]ln([alpha][sup [minus]1]) contribution to the energies of the 1[ital s] and 2[ital s] states of positronium reported in an earlier paper [Fell, Phys. Rev. Lett. 68, 25 (1992)] are demonstrated. Recently, this same calculation was done by an independent group [Khriplovich, Milstein, and Yelkhovsky, Phys. Lett. B 283, 237 (1992)]. Although the initial results of the two calculations did not agree, this discrepancy has since been resolved in favor of the calculation presented here. We discuss the two calculations and then compare the theoretical and experimental values of the [ital n]=2 fine structure and the triplet 2[ital s]-1[ital s] splitting.

• OSTI ID: 6037563
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 48:4; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664500* -- Special Atoms & Molecules-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
CORRECTIONS
ENERGY LEVELS
EXCITED STATES
EXPERIMENT PLANNING
FIELD THEORIES
GROUND STATES
PLANNING
POSITRONIUM
QUANTUM FIELD THEORY
RADIATIVE CORRECTIONS