Orthopositronium lifetime: analytic results in O(alpha) and O(alpha^3 ln(alpha))

Abstract

We present the O(alpha) and O(alpha^3 ln(alpha)) corrections to the total decay width of orthopositronium in closed analytic form, in terms of basic transcendental numbers, which can be evaluated numerically to arbitrary precision.

9 pages, 1 figure

References in corpus (2)

• Two-Loop Formfactors in Theories with Mass Gap and Z-Boson Production
• Heavy-quark QCD vacuum polarisation function: analytical results at four loops

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