An order-α2 correction to the hyperfine structure of positronium due to the Källen-Sabry potential

Mark A. Samuel
Phys. Rev. A 10, 1450 – Published 1 October 1974
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Abstract

The contribution to the positronium ground-state hyperfine structure due to the fourth-order vacuum polarization correction to the annihilation diagram is computed. The updated theoretical value is one standard deviation above experiment.

  • Received 1 June 1973

DOI:https://doi.org/10.1103/PhysRevA.10.1450

©1974 American Physical Society

Authors & Affiliations

Mark A. Samuel

  • Quantum Theoretical Research Group, Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74074

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Vol. 10, Iss. 4 — October 1974

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