A study of how the particle spectra of SU(N) gauge theories with a fundamental Higgs emerge

A study of how the particle spectra of SU(N) gauge theories with a fundamental Higgs emerge

In gauge theories, the physical, experimentally observable spectrum consists only of gauge-invariant states. In the standard model the Fröhlich-Morchio-Strocchi mechanism shows that these states can be adequately mapped to the gauge-dependent elementary W, Z, Higgs, and fermions. In theories with a...

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Main Authors: Törek Pascal, Maas Axel, Sondenheimer René
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201817508002
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spelling doaj-f77b5ccea794405b8cde4c5f831a6b022021-08-02T02:53:00ZengEDP SciencesEPJ Web of Conferences2100-014X2018-01-011750800210.1051/epjconf/201817508002epjconf_lattice2018_08002A study of how the particle spectra of SU(N) gauge theories with a fundamental Higgs emergeTörek PascalMaas AxelSondenheimer RenéIn gauge theories, the physical, experimentally observable spectrum consists only of gauge-invariant states. In the standard model the Fröhlich-Morchio-Strocchi mechanism shows that these states can be adequately mapped to the gauge-dependent elementary W, Z, Higgs, and fermions. In theories with a more general gauge group and Higgs sector, appearing in various extensions of the standard model, this has not to be the case. In this work we determine analytically the physical spectrum of SU(N > 2) gauge theories with a Higgs field in the fundamental representation. We show that discrepancies between the spectrum predicted by perturbation theory and the observable physical spectrum arise. We confirm these analytic findings with lattice simulations for N = 3.https://doi.org/10.1051/epjconf/201817508002
collection DOAJ
language English
format Article
sources DOAJ
author Törek Pascal
Maas Axel
Sondenheimer René
spellingShingle Törek Pascal
Maas Axel
Sondenheimer René
A study of how the particle spectra of SU(N) gauge theories with a fundamental Higgs emerge
EPJ Web of Conferences
author_facet Törek Pascal
Maas Axel
Sondenheimer René
author_sort Törek Pascal
title A study of how the particle spectra of SU(N) gauge theories with a fundamental Higgs emerge
title_short A study of how the particle spectra of SU(N) gauge theories with a fundamental Higgs emerge
title_full A study of how the particle spectra of SU(N) gauge theories with a fundamental Higgs emerge
title_fullStr A study of how the particle spectra of SU(N) gauge theories with a fundamental Higgs emerge
title_full_unstemmed A study of how the particle spectra of SU(N) gauge theories with a fundamental Higgs emerge
title_sort study of how the particle spectra of su(n) gauge theories with a fundamental higgs emerge
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2018-01-01
description In gauge theories, the physical, experimentally observable spectrum consists only of gauge-invariant states. In the standard model the Fröhlich-Morchio-Strocchi mechanism shows that these states can be adequately mapped to the gauge-dependent elementary W, Z, Higgs, and fermions. In theories with a more general gauge group and Higgs sector, appearing in various extensions of the standard model, this has not to be the case. In this work we determine analytically the physical spectrum of SU(N > 2) gauge theories with a Higgs field in the fundamental representation. We show that discrepancies between the spectrum predicted by perturbation theory and the observable physical spectrum arise. We confirm these analytic findings with lattice simulations for N = 3.
url https://doi.org/10.1051/epjconf/201817508002
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