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New Particles in e+e- Annihilation

  • B. H. Wiik
Chapter
Part of the NATO Advanced Study Institutes Series book series (NSSB, volume 39)

Abstract

Electron-positron annihilation is a process well suited for the study of the strong, the electromagnetic and the weak interactions. There is a simple reason for this; the annihilation diagram, which yields an intermediate state with well defined quantum numbers (JPC=1--), dominates the e+e- cross section at low energies and can be separated from higher order diagrams at high energies. Furthermore, the current (electromagnetic or weak) is timelike and couples directly not only to charged leptons but presumably also to quarks in a well defined way. These facts, cherished for a long time by the e+e- - addicts, have now come to be (almost universally) accepted by the high energy physics community. This insight has been helped by a series of stunning discoveries made in e+e- experiments during the past few years.

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© Springer Science+Business Media New York 1979

Authors and Affiliations

  • B. H. Wiik
    • 1
  1. 1.Deutsches Elektronen-Synchroton DESYHamburg 52Federal Republic of Germany

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