Remeasurement of the magnetic moment of the antiproton

A. Kreissl, A. D. Hancock, H. Koch, Th Köhler, H. Poth, U. Raich, D. Rohmann, a. Wolf, L. Tauscher, A. Nilsson, M. Suffert, M. Chardalas, S. Dedoussis, H. Daniel, T. von Egidy, F. J. Hartmann, W. Kanert, H. Plendl, G. Schmidt, J. J. Reidy

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A high-precision measurement of the finestructure splitting in the circular 11→10 X-ray transition of {Mathematical expression} was performed. The experimental value of 1199(5) eV is in agreement with QED calculations. From that value the magnetic moment of the antiproton was deduced to be -2.8005(90)μnucl. With this result the uncertainty of the previous world average value was reduced by a factor of ≈2. A comparison with the corresponding quantity of the proton now yields: {Mathematical expression}.

Original languageEnglish
Pages (from-to)557-561
Number of pages5
JournalZeitschrift für Physik C Particles and Fields
Issue number4
StatePublished - Dec 1988


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