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The SU(2) L × U(1) Model

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Unification and Supersymmetry

Part of the book series: Graduate Texts in Contemporary Physics ((GTCP))

Abstract

In this section we will apply the ideas of spontaneously broken gauge theories to construct the first successful model of electro-weak interaction of quarks and leptons. As we discussed in the Introduction the observed universality of the four-Fermi coupling of weak-decay processes suggests the existence of a hidden symmetry of weak interactions, and the symmetry manifests itself not through the existence of degenerate multiplets but through broken local symmetries. The SU(2) L × U(1) model of Glashow, Weinberg, and Salam [1] provides a realization of this idea in the framework of a renormalizable field theory, and the recent discovery of W ±- and Z-bosons in the proton-antiproton collider experiments [2] has proved the correctness of these ideas and given a boost to the study of spontaneously broken non-abelian gauge theories as the way to probe further into the structure of quark-lepton interactions. This will be explored in the subsequent sections.

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Authors and Affiliations

  1. Department of Physics and Astronomy, University of Maryland, 20742, College Park, MD, USA

    Rabindra N. Mohapatra

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  1. Rabindra N. Mohapatra
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© 1992 Springer Science+Business Media New York

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Mohapatra, R.N. (1992). The SU(2) L × U(1) Model. In: Unification and Supersymmetry. Graduate Texts in Contemporary Physics. Springer, New York, NY. https://doi.org/10.1007/978-1-4757-4373-9_3

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  • DOI: https://doi.org/10.1007/978-1-4757-4373-9_3

  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4757-4375-3

  • Online ISBN: 978-1-4757-4373-9

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