O(α2Γ,α3Γ) binding effects in orthopositronium decay

Richard J. Hill, G. Peter Lepage

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


We present a new, simplified analysis of the low-energy electron-positron interaction, and use the resulting effective theory to calculate the binding effects that contribute to the decay rate Γ of orthopositronium through O(α3ln αΓ). We express the total decay rate in terms of the annihilation rate for a free electron and positron at threshold, which has just recently been computed to sufficient precision. Our O(α2Γ) result corrects errors in a previous analysis.

Original languageEnglish
Article number111301
Pages (from-to)1-5
Number of pages5
JournalPhysical review D
Issue number11
StatePublished - Dec 1 2000

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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