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High-Precision Atomic Mass Measurements for Fundamental Constants
Open AccessFeature PaperArticle

Towards an Improved Test of the Standard Model’s Most Precise Prediction

1
Center for Fundamental Physics, Northwestern University, 2233 Tech Drive, Evanston, IL 60208, USA
2
Department of Physics, Harvard University, 17 Oxford St, Cambridge, MA 01238, USA
*
Author to whom correspondence should be addressed.
Atoms 2019, 7(2), 45; https://doi.org/10.3390/atoms7020045
Received: 6 March 2019 / Revised: 9 April 2019 / Accepted: 10 April 2019 / Published: 25 April 2019
(This article belongs to the Special Issue High Precision Measurements of Fundamental Constants)
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Abstract

The electron and positron magnetic moments are the most precise prediction of the standard model of particle physics. The most accurate measurement of a property of an elementary particle has been made to test this result. A new experimental method is now being employed in an attempt to improve the measurement accuracy by an order of magnitude. Positrons from a “student source” now suffice for the experiment. Progress toward a new measurement is summarized. View Full-Text
Keywords: standard model; electron; positron; magnetic moment; g value; fine structure constant; Penning trap standard model; electron; positron; magnetic moment; g value; fine structure constant; Penning trap
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Gabrielse, G.; Fayer, S.E.; Myers, T.G.; Fan, X. Towards an Improved Test of the Standard Model’s Most Precise Prediction. Atoms 2019, 7, 45.

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