Zeitschrift für Physik C Particles and Fields

, Volume 37, Issue 4, pp 557–561

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
Article

DOI: 10.1007/BF01549714

Cite this article as:
Kreissl, A., Hancock, A.D., Koch, H. et al. Z. Phys. C - Particles and Fields (1988) 37: 557. doi:10.1007/BF01549714

Abstract

A high-precision measurement of the finestructure splitting in the circular 11→10 X-ray transition of\(\bar p^{208} Pb\) 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:\({{\left( {\mu _p - \left| {\left\langle {\mu _{\bar p} } \right\rangle } \right|} \right)} \mathord{\left/ {\vphantom {{\left( {\mu _p - \left| {\left\langle {\mu _{\bar p} } \right\rangle } \right|} \right)} {\mu _p }}} \right. \kern-\nulldelimiterspace} {\mu _p }} = \left( { - 2.4 \pm 2.9} \right) \times 10^{ - 3} \).

Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • A. Kreissl
    • 1
  • A. D. Hancock
    • 1
  • H. Koch
    • 1
  • Th. Köhler
    • 1
  • H. Poth
    • 1
  • U. Raich
    • 1
  • D. Rohmann
    • 1
  • a. Wolf
    • 1
  • L. Tauscher
    • 2
  • A. Nilsson
    • 3
  • M. Suffert
    • 4
  • M. Chardalas
    • 5
  • S. Dedoussis
    • 5
  • H. Daniel
    • 6
  • T. von Egidy
    • 6
  • F. J. Hartmann
    • 6
  • W. Kanert
    • 6
  • H. Plendl
    • 6
  • G. Schmidt
    • 6
  • J. J. Reidy
    • 7
  1. 1.Institut für Kernphysik and Universität, Institut für Experimentelle KernphysikKernforschungszentrum KarlsruheKarlsruheGermany
  2. 2.Institute for PhysicsUniversity of BaselBaselSwitzerland
  3. 3.Research Institute of PhysicsStockholmSweden
  4. 4.Centre de Recherches NucléairesStrasbourg CedexFrance
  5. 5.Department of Nuclear PhysicsUniversity of ThessalonikiThessalonikiGreece
  6. 6.Physik DepartmentTechnische Universität MünchenMünchenGermany
  7. 7.Physics DepartmentUniversity of Mississippi, UniversityMississipiUSA
  8. 8.QUANTRONIXDarmstadtGermany
  9. 9.EG & GLos AlamosUSA
  10. 10.CERNGenevaSwitzerland
  11. 11.University of BochumBochumGermany
  12. 12.Physics DepartmentFlorida State UniversityTallahasseeUSA