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arXiv · 1506.03835

Positronium energy levels at order $m \alpha^7$: vacuum polarization corrections in the two-photon-annihilation channel

Gregory S. Adkins·Christian Parsons·M. D. Salinger·Ruihan Wang
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Abstract

We have calculated all contributions to the energy levels of parapositronium at order $m \alpha^7$ 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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Gregory S. Adkins, Christian Parsons, M. D. Salinger, Ruihan Wang. 2015-06-11. Positronium energy levels at order $m \alpha^7$: vacuum polarization corrections in the two-photon-annihilation channel. https://arxiv.org/abs/1506.03835

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