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A direct determination of the proton-electron mass ratio

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

The cyclotron resonance of protons and electrons in a magnetic field of 5.7 Tesla produced by a superconducting solenoid has been measured. Protons and electrons were alternately confined in an electrostatic quadrupole trap. The quotient of the cyclotron frequencies provides a first direct determination of the proton-electron mass ratio. The result ofM p /M e =1836.1502(53) agrees with other more precise but indirect determinations of this quantity.

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Authors and Affiliations

  1. Institut für Physik der Johannes Gutenberg-UniversitÄt Mainz, West Germany

    G. GÄrtner & E. Klempt

Authors
  1. G. GÄrtner
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  2. E. Klempt
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Additional information

Part of the dissertation E70

We appreciate advice and help of Dr. H. Kilp in setting up the microwave arrangement. We wish to thank Professor Dr. G. GrÄff for encouragement and continuous support.

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GÄrtner, G., Klempt, E. A direct determination of the proton-electron mass ratio. Z Physik A 287, 1–6 (1978). https://doi.org/10.1007/BF01408352

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  • DOI: https://doi.org/10.1007/BF01408352

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