English

Irrational constants in positronium decays

High Energy Physics - Phenomenology 2009-11-13 v1

Abstract

We establish irrational constants, that contribute to the positronium lifetime at O(α)O(\alpha) and O(α2)O(\alpha^2) order. In particular we show, that a new type of constants appear, which are not related to Euler--Zagier sums or multiple ζ\zeta values.

Keywords

Cite

@article{arxiv.0811.0306,
  title  = {Irrational constants in positronium decays},
  author = {B. A. Kniehl and A. V. Kotikov and O. L. Veretin},
  journal= {arXiv preprint arXiv:0811.0306},
  year   = {2009}
}

Comments

Presented at 9th Workshop on Elementary Particle Theory: Loops and Legs in Quantum Field Theory, Sondershausen, 20-25 Apr 2008. 6 pages, 3 figures

R2 v1 2026-06-21T11:37:40.105Z