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Charges in gauge theories

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An Erratum to this article was published on 01 February 1999

Abstract

In this article we investigate charged particles in gauge theories. After reviewing the physical and theoretical problems, a method to construct charged particles is presented. Explicit solutions are found in the abelian theory and a physical interpretation is given. These solutions and our interpretation of these variables as the true degrees of freedom for charged particles, are then tested in the perturbative domain and are demonstrated to yield infra-red finite, on-shell Green’s functions at all orders of perturbation theory. The extension to collinear divergences is studied and it is shown that this method applies to the case of massless charged particles. The application of these constructions to the charged sectors of the standard model is reviewed and we conclude with a discussion of the successes achieved so far in this programme and a list of open questions.

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Authors and Affiliations

  1. School of Mathematics and Statistics, The University of Plymouth, PL4 8AA, Plymouth, UK

    Robin Horan, Martin Lavelle & David Mcmullan

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  1. Robin Horan
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  2. Martin Lavelle
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  3. David Mcmullan
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Correspondence to Robin Horan.

Additional information

An erratum to this article is available at http://dx.doi.org/10.1007/BF02831497.

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Horan, R., Lavelle, M. & Mcmullan, D. Charges in gauge theories. Pramana - J Phys 51, 317–355 (1998). https://doi.org/10.1007/BF02828927

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