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Author Adkins, G.S. ♦ Lymberopoulos, M.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ATOMIC AND MOLECULAR PHYSICS ♦ POSITRONIUM ♦ DECAY ♦ ANALYTICAL SOLUTION ♦ GAUGE INVARIANCE ♦ MULTI-PHOTON PROCESSES ♦ PHOTON-PHOTON INTERACTIONS ♦ QUANTUM ELECTRODYNAMICS ♦ BASIC INTERACTIONS ♦ ELECTRODYNAMICS ♦ ELECTROMAGNETIC INTERACTIONS ♦ FIELD THEORIES ♦ INTERACTIONS ♦ INVARIANCE PRINCIPLES ♦ PARTICLE INTERACTIONS ♦ QUANTUM FIELD THEORY ♦ Special Atoms & Molecules- (1992-)
Abstract The gauge invariant contribution of the six radiatively corrected light-by-light scattering processes to the decay rate of orthopositronium into three photons is calculated. The infrared-safe Yennie gauge is used for the loop photons. The relative order of [alpha][sup 2] part of our result, 9.0074(9)([alpha][sup 2]/[pi][sup 2])[Gamma][sub LO], makes a 0.000350 [mu]s[sup [minus]1] contribution to the decay rate, thus reducing slightly the apparent discrepancy between the theoretical and experimental results. [Gamma][sub LO] is the lowest-order decay rate. The analytically obtained relative order [alpha][sup 2]ln [alpha] part of our result, [minus][alpha][sup 2]ln(1/[alpha])[Gamma][sub LO], is in agreement with earlier evaluations.
ISSN 10502947
Educational Use Research
Learning Resource Type Article
Publisher Date 1995-04-01
Publisher Place United States
Journal Physical Review A
Volume Number 50
Issue Number 4


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