Article ID Journal Published Year Pages File Type
1852728 Physics Letters B 2015 5 Pages PDF
Abstract

We have calculated all contributions to the energy levels of parapositronium at order mα7mα7 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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Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
Preview
Positronium energy levels at order mα7: Vacuum polarization corrections in the two-photon-annihilation channel
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