On the Positronium g-factor

Abstract

In this letter, we recall the main facts concerning the g-factor of positronium and we show how the value of the g-factor of the positronium is important. Taking it better into consideration may provide a solution to the reported discrepancy between QED theory and experiments concerning the hyperfine splitting of the fundamental level of the positronium. We also give the only experimental value that existing experiments can provide, $g_{\mathrm{Ps}}=2.0023\pm 0.0012$ at $3\sigma$.

arXiv commentSubmitted to EPJD

References in corpus (5)

• High magnetic fields for fundamental physics
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• First Millimeter-wave Spectroscopy of the Ground-state Positronium
• Diamagnetic correction to the ${}^9$Be${}^{+}$ ground-state hyperfine constant
• Pulsed high magnetic field measurement via a Rubidium vapor sensor