1995/05/16 by A. A. Pivovarov, А. А. Pivovarov, Pivovarov, A. A.
Computer Science · Physics and Astronomy · #Cellular Automata and Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9505316
Latex file
arxiv created 1995/05/16 · openalex publication_date 1995/05/16 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A kind of asymptotic expansion for calculation of the (para)positronium decay rate is formulated. The method is completely relativistic and gauge invariant. The expansion goes over the inverse square of relative momentum k of two photons in Euclidean region and the actual width is determined at k2=-m2, m being the electron mass.