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. 2002 Jan 7;88(1):011603.
doi: 10.1103/PhysRevLett.88.011603. Epub 2001 Dec 19.

New determination of the electron's mass

Thomas Beier  1 , Hartmut Häffner, Nikolaus Hermanspahn, Savely G Karshenboim, H-Jürgen Kluge, Wolfgang Quint, Stefan Stahl, José Verdú, Günther Werth
Affiliations

New determination of the electron's mass

Thomas Beier et al. Phys Rev Lett. .

Abstract

A new independent value for the electron's mass in units of the atomic mass unit is presented, m(e) = 0.000 548 579 909 2(4) u. The value is obtained from our recent measurement of the g factor of the electron in (12)C(5+) in combination with the most recent quantum electrodynamical (QED) predictions. In the QED corrections, terms of order alpha(2) were included by a perturbation expansion in Zalpha. Our total precision is three times better than that of the accepted value for the electron's mass.

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