Christian Parsons

activity

20142024

most citedThree-photon-annihilation contributions to positronium energies at order

m α^{7}

31 citations · 57 across the 7 of their papers we have counts for

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hep-ph2014★ 24 cited

Positronium energy levels at order $m α^{7}$ : light-by-light scattering in the two-photon-annihilation channel

Gregory S. Adkins, Christian Parsons, M. D. Salinger +2

Recent and ongoing experimental work on the positronium spectrum motivates new efforts to calculate positronium energy levels at the level of three loop corrections. We have obtain…

Positronium energy levels at order mα7: light-by-light scattering in the two-photon-annihilation channel

Positronium energy levels at order $m α^{7}$ : light-by-light scattering in the two-photon-annihilation channel