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Light-by-light scattering contribution to the decay rate of orthopositronium at order [alpha][sup 2][Gamma][sub LO]

Journal Article · · Physical Review A; (United States)
 [1];  [2]
  1. Franklin and Marshall College, Lancaster, Pennsylvania 17604 (United States)
  2. Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019 (United States)
We calculate the contribution of the six radiatively corrected light-by-light scattering graphs to the decay rate of orthopositronium. Our result is [Gamma][sub light-by-light]= [minus][alpha][sup 2]ln(1/[alpha])[Gamma][sub LO]+9.0074(9)([alpha][sup 2]/[pi][sup 2])[Gamma][sub LO]. Our result contains a known analytic logarithm plus a new constant term which contributes 0.000 350 [mu]s[sup [minus]1] to the rate.
OSTI ID:
6850576
Journal Information:
Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 51:2; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English