New determination of the electron's mass

Beier, T.; Haffner, H.; Hermanspahn, N.; Karshenboim, Savely G.; Kluge, H. J.; Quint, W.; Stahl, S.; Verdu, J.; Werth, G.

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New determination of the electron's mass

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Karshenboim, Savely G.
Laser Spectroscopy, Max Planck Institute of Quantum Optics, Max Planck Society;

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Citation

Beier, T., Haffner, H., Hermanspahn, N., Karshenboim, S. G., Kluge, H. J., Quint, W., et al. (2002). New determination of the electron's mass. Physical Review Letters, 88(1): 011603. 011603. Retrieved from http://link.aps.org/abstract/PRL/v88/e011603.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-C26F-6

Abstract

A new independent value for the electron's mass in units of the atomic mass unit is presented, m _e = 0.0005485799092(4) u. The value is obtained from our recent measurement of the g factor of the electron in ¹²C⁵⁺ in combination with the most recent quantum electrodynamical (QED) predictions. In the QED corrections, terms of order α² were included by a perturbation expansion in Zα. Our total precision is three times better than that of the accepted value for the electron's mass.