Anomalous magnetic moment of the positronium ion

Abstract

We determine the gyromagnetic factor of the positronium ion, a three-body system consisting of two electrons and a positron, including first relativistic corrections. We find that the g-factor is modified by a term -0.51(1)alpha^2, exceeding 15 times the alpha^2 correction for a free electron. We compare this effect with analogous results found previously in atomic positronium and in hydrogen-like ions.

7 pages

References in corpus (4)

• High-precision measurement of the atomic mass of the electron
• Complete two-loop correction to the bound-electron g factor
• Nonrelativistic QED approach to the bound-electron g factor
• Positronium-ion decay

Cited by in corpus (2)

• Electromagnetic moments of the bound system of charged particles
• Magnetic moment of the positronium ion and virial relations