A new independent value for the electron's mass in units of the atomic mass unit is presented, mₑ0ex0ex=0ex0ex0.0005485799092(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.
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Beier et al. (2001) studied this question.
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