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Experimental determination of the branching ratios\(p\bar p \to 2\pi ^0 ,\pi ^0 \gamma \), and 2γ at rest

  • L. Adiels
  • G. Backenstoss
  • I. Bergström
  • S. Carius
  • S. Charalambous
  • M. D. Cooper
  • Ch. Findeisen
  • D. Hatzifotiadou
  • M. Hugi
  • A. Kerek
  • H. O. Meyer
  • P. Pavlopoulos
  • J. Repond
  • L. Tauscher
  • D. Tröster
  • M. C. S. Williams
  • K. Zioutas
Article

Abstract

The branching ratios of\(p\bar p\) annihilations into the neutral final states 2π0, π0γ, and 2γ are measured by stopping antiprotons in liquid hydrogen. They are\(B_{2\pi ^0 } = \left( {2.06 \pm 0.14} \right) \times 10^{ - 4} \),\(B_{\pi ^0 \gamma } = \left( {1.74 \pm 0.22} \right) \times 10^{ - 5} \), andBγγ<1.7×10−6 (95% c.l.).

Keywords

Hydrogen Field Theory Elementary Particle Quantum Field Theory Experimental Determination 
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-Verlag 1987

Authors and Affiliations

  • L. Adiels
    • 2
  • G. Backenstoss
    • 1
  • I. Bergström
    • 2
  • S. Carius
    • 2
  • S. Charalambous
    • 3
  • M. D. Cooper
    • 1
  • Ch. Findeisen
    • 1
  • D. Hatzifotiadou
    • 3
  • M. Hugi
    • 1
  • A. Kerek
    • 2
  • H. O. Meyer
    • 1
  • P. Pavlopoulos
    • 4
  • J. Repond
    • 1
  • L. Tauscher
    • 1
  • D. Tröster
    • 1
  • M. C. S. Williams
    • 1
  • K. Zioutas
    • 3
  1. 1.Institute for PhysicsUniversity of BaselBaselSwitzerland
  2. 2.Research Institute of PhysicsStockholmSweden
  3. 3.University of ThessalonikiThessalonikiGreece
  4. 4.CERNGeneva 23Switzerland

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