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Review of the Measurement of μpN

  • B. W. Petley

Abstract

The magnetic moment of the proton, μp, is conventionally expressed in terms of the nuclear magneton μN (= 1/2ħe/Mp) since the latter is the value predicted on the basis of the simple Dirac theory. The first measurements were made by Frisch and Stern in 19331 who found that the measured value was between two and three nuclear magnetons. By 1940 the anomaly had been established to better than 0.1%.2,3 Progress continued, with the work of Bloch and Jeffries4 and of Sommer, Thomas and Hipple.5 The precision is now at the sub-part per million level. The pre-1970 determinations were reviewed by Taylor,Parker and Langenberg (1969)6 and by Petley.7

Keywords

Cyclotron Frequency Fundamental Constant Free Proton Error Assignment Nuclear Magneton 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1976

Authors and Affiliations

  • B. W. Petley
    • 1
  1. 1.Division of Quantum MetrologyNational Physical LaboratoryTeddingtonEngland

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