O(alpha^3 ln alpha) corrections to positronium decay rates

Details O(alpha^3 ln alpha) corrections to positronium decay rates O(alpha^3 ln alpha) corrections to positronium decay rates

2000-08-10

arxiv.org/abs/hep-ph/0008099v1

Phys.Rev. D62 (2000) 116003

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, revtex

Scientific paper

10.1103/PhysRevD.62.116003

We compute O(alpha^3 ln alpha) corrections to the decay rates of para- and
orthopositronium into two and three photons, respectively. For this calculation
we employ the nonrelativistic QED regularized dimensionally and we explain how
in this framework the logarithms of the fine structure constant can be
extracted.

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