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Z 0 decay and electron positron annihilation into three gluons

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Zeitschrift für Physik C Particles and Fields

Abstract

After pointing out that the two-gluon decay mode of theZ 0 vanishes, we calculate, in detail, the differential and the total decay rates forZ 0→ggg. Using the standard Glashow-Weinberg-Salam model and Quantum Chromodynamics, we find a branching ratio of 1.8×10−5. We also discussZ→ggγ andZ 0→γγγ. As a natural extension of this work, we present the details of a calculation of the differential and the total cross sections for the processe + e −→ggg mediated by a virtual photon in the continuum. A detailed comparison with\(e^ + e^ - \to q\bar qg\) and a brief discussion ofe + e −→ggγ ande + e −→γγγ are also given.

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Authors and Affiliations

  1. Department of Physics, Oklahoma State University, 74078, Stillwater, OK, USA

    Morten L. Laursen & Mark A. Samuel

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  1. Morten L. Laursen
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  2. Mark A. Samuel
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Laursen, M.L., Samuel, M.A. Z 0 decay and electron positron annihilation into three gluons. Z. Phys. C - Particles and Fields 14, 325–344 (1982). https://doi.org/10.1007/BF01578654

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