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arXiv · 1706.06780

High-precision measurement of the proton's atomic mass

Fabian Heiße·Florian Köhler-Langes·Sascha Rau·Jamin Hou·Sven Junck·Anke Kracke·Andreas Mooser·Wolfgang Quint·Stefan Ulmer·Günter Werth·Klaus Blaum·Sven Sturm
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Abstract

We report on the precise measurement of the atomic mass of a single proton with a purpose-built Penning-trap system. With a precision of 32 parts-per-trillion our result not only improves on the current CODATA literature value by a factor of three, but also disagrees with it at a level of about 3 standard deviations.

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Fabian Heiße, Florian Köhler-Langes, Sascha Rau, Jamin Hou, Sven Junck, Anke Kracke, Andreas Mooser, Wolfgang Quint, Stefan Ulmer, Günter Werth, Klaus Blaum, Sven Sturm. 2017-06-21. High-precision measurement of the proton's atomic mass. https://doi.org/10.1103/physrevlett.119.033001

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