Positronium energy levels at order m α⁷: vacuum polarization corrections in the two-photon-annihilation channel

2015/06/11 by Gregory S. Adkins, Christian Parsons, Adkins, Gregory S. +5
Engineering · Physics and Astronomy · #Atomic and Molecular Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Muon and positron interactions and applications #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.1506.03835

openalex publication_date 2015/06/11 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28

Abstract

We have calculated all contributions to the energy levels of parapositronium at order m α⁷ coming from vacuum polarization corrections to processes involving virtual annihilation to two photons. This work is motivated by ongoing efforts to improve the experimental determination of the positronium ground-state hyperfine splitting.

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