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Towards top-down holographic composite Higgs: minimal coset from maximal supergravity

Daniel Elander, Maurizio Piai Orcid Logo

Journal of High Energy Physics, Volume: 2022, Issue: 3

Swansea University Author: Maurizio Piai Orcid Logo

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Abstract

Within the context of top-down holography, we study a one-parameter family of regular background solutions of maximal gauged supergravity in seven dimensions, dimensionally reduced on a 2-torus. The dual, four-dimensional confining field theory realises the global (spontaneous as well as explicit) s...

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Published in: Journal of High Energy Physics
ISSN: 1029-8479
Published: Springer Science and Business Media LLC 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa59398
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first_indexed 2022-03-02T13:16:42Z
last_indexed 2023-01-11T14:40:38Z
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spelling 2022-10-25T14:24:31.0745753 v2 59398 2022-02-14 Towards top-down holographic composite Higgs: minimal coset from maximal supergravity 3ce295f2c7cc318bac7da18f9989d8c3 0000-0002-2251-0111 Maurizio Piai Maurizio Piai true false 2022-02-14 SPH Within the context of top-down holography, we study a one-parameter family of regular background solutions of maximal gauged supergravity in seven dimensions, dimensionally reduced on a 2-torus. The dual, four-dimensional confining field theory realises the global (spontaneous as well as explicit) symmetry breaking pattern SO(5) → SO(4). We compute the complete mass spectrum for the fluctuations of the 128 bosonic degrees of freedom of the five-dimensional gravity theory, which correspond to scalar, pseudoscalar, vector, axial-vector, and tensor bound states of the dual field theory, and includes particles with exotic SO(4) quantum numbers. We confirm the existence of tachyonic instabilities near the boundaries of the parameter space.We discuss the interplay between explicit and spontaneous symmetry breaking. The SO(5)/SO(4) coset might provide a first step towards the realisation of a calculable frame- work and ultraviolet completion of minimal composite Higgs models, if the four pseudo- Nambu-Goldstone bosons are identified with the real components of the Higgs doublet in the standard model (SM), and a subgroup of SO(4) with the SU(2)×U(1) SM gauge group. We exhibit an example with an additional localised boundary term that mimics the effect of a weakly-coupled external sector. Journal Article Journal of High Energy Physics 2022 3 Springer Science and Business Media LLC 1029-8479 8 3 2022 2022-03-08 10.1007/jhep03(2022)049 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University Another institution paid the OA fee 2022-10-25T14:24:31.0745753 2022-02-14T15:01:34.5954704 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Daniel Elander 1 Maurizio Piai 0000-0002-2251-0111 2 59398__22561__dd8b10b5d9b84f5aa8d326d04c5ac35e.pdf JHEP03-2022.pdf 2022-03-10T08:02:23.2655395 Output 1393334 application/pdf Version of Record true Open Access . This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. true eng http://creativecommons.org/licenses/by/4.0/
title Towards top-down holographic composite Higgs: minimal coset from maximal supergravity
spellingShingle Towards top-down holographic composite Higgs: minimal coset from maximal supergravity
Maurizio Piai
title_short Towards top-down holographic composite Higgs: minimal coset from maximal supergravity
title_full Towards top-down holographic composite Higgs: minimal coset from maximal supergravity
title_fullStr Towards top-down holographic composite Higgs: minimal coset from maximal supergravity
title_full_unstemmed Towards top-down holographic composite Higgs: minimal coset from maximal supergravity
title_sort Towards top-down holographic composite Higgs: minimal coset from maximal supergravity
author_id_str_mv 3ce295f2c7cc318bac7da18f9989d8c3
author_id_fullname_str_mv 3ce295f2c7cc318bac7da18f9989d8c3_***_Maurizio Piai
author Maurizio Piai
author2 Daniel Elander
Maurizio Piai
format Journal article
container_title Journal of High Energy Physics
container_volume 2022
container_issue 3
publishDate 2022
institution Swansea University
issn 1029-8479
doi_str_mv 10.1007/jhep03(2022)049
publisher Springer Science and Business Media LLC
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
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description Within the context of top-down holography, we study a one-parameter family of regular background solutions of maximal gauged supergravity in seven dimensions, dimensionally reduced on a 2-torus. The dual, four-dimensional confining field theory realises the global (spontaneous as well as explicit) symmetry breaking pattern SO(5) → SO(4). We compute the complete mass spectrum for the fluctuations of the 128 bosonic degrees of freedom of the five-dimensional gravity theory, which correspond to scalar, pseudoscalar, vector, axial-vector, and tensor bound states of the dual field theory, and includes particles with exotic SO(4) quantum numbers. We confirm the existence of tachyonic instabilities near the boundaries of the parameter space.We discuss the interplay between explicit and spontaneous symmetry breaking. The SO(5)/SO(4) coset might provide a first step towards the realisation of a calculable frame- work and ultraviolet completion of minimal composite Higgs models, if the four pseudo- Nambu-Goldstone bosons are identified with the real components of the Higgs doublet in the standard model (SM), and a subgroup of SO(4) with the SU(2)×U(1) SM gauge group. We exhibit an example with an additional localised boundary term that mimics the effect of a weakly-coupled external sector.
published_date 2022-03-08T04:16:40Z
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