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Light dilaton in a metastable vacuum / Daniel Elander; Maurizio Piai; John Roughley

Physical Review D, Volume: 103, Issue: 4

Swansea University Authors: Maurizio, Piai, John, Roughley

Abstract

We identify a parametrically light dilaton by studying the perturbations of metastable vacua along a branch of regular supergravity backgrounds that are dual to four-dimensional confining field theories. The branch includes also stable and unstable solutions. The former encompass, as a special case,...

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Published in: Physical Review D
ISSN: 2470-0010 2470-0029
Published: American Physical Society (APS) 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa56147
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first_indexed 2021-01-29T08:30:19Z
last_indexed 2021-04-13T03:23:30Z
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spelling 2021-04-12T16:30:08.7396888 v2 56147 2021-01-29 Light dilaton in a metastable vacuum 3ce295f2c7cc318bac7da18f9989d8c3 0000-0002-2251-0111 Maurizio Piai Maurizio Piai true false a455f6e7908ee14413cb31e9f6f2f0fb John Roughley John Roughley true false 2021-01-29 SPH We identify a parametrically light dilaton by studying the perturbations of metastable vacua along a branch of regular supergravity backgrounds that are dual to four-dimensional confining field theories. The branch includes also stable and unstable solutions. The former encompass, as a special case, the geometry proposed by Witten as a holographic model of confinement. The latter approach a supersymmetric solution, by enhancing a condensate in the dual field theory. A phase transition separates the space of stable backgrounds from the metastable ones. In proximity of the phase transition, one of the lightest scalar states inherits some of the properties of the dilaton, despite not being particularly light. Journal Article Physical Review D 103 4 American Physical Society (APS) 2470-0010 2470-0029 15 2 2021 2021-02-15 10.1103/physrevd.103.046009 http://dx.doi.org/10.1103/physrevd.103.046009 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2021-04-12T16:30:08.7396888 2021-01-29T08:26:18.2836965 Daniel Elander 1 Maurizio Piai 2 John Roughley 3 Maurizio Piai 0000-0002-2251-0111 4 John Roughley 5 56147__19628__52d106c01abe4b5fbfadafed94d6224c.pdf 2011.07049.pdf 2021-04-12T16:28:08.5218981 Output 1038085 application/pdf Corrected Version of Record true false
title Light dilaton in a metastable vacuum
spellingShingle Light dilaton in a metastable vacuum
Maurizio, Piai
John, Roughley
title_short Light dilaton in a metastable vacuum
title_full Light dilaton in a metastable vacuum
title_fullStr Light dilaton in a metastable vacuum
title_full_unstemmed Light dilaton in a metastable vacuum
title_sort Light dilaton in a metastable vacuum
author_id_str_mv 3ce295f2c7cc318bac7da18f9989d8c3
a455f6e7908ee14413cb31e9f6f2f0fb
author_id_fullname_str_mv 3ce295f2c7cc318bac7da18f9989d8c3_***_Maurizio, Piai
a455f6e7908ee14413cb31e9f6f2f0fb_***_John, Roughley
author Maurizio, Piai
John, Roughley
author2 Daniel Elander
Maurizio Piai
John Roughley
Maurizio Piai
John Roughley
format Journal article
container_title Physical Review D
container_volume 103
container_issue 4
publishDate 2021
institution Swansea University
issn 2470-0010
2470-0029
doi_str_mv 10.1103/physrevd.103.046009
publisher American Physical Society (APS)
url http://dx.doi.org/10.1103/physrevd.103.046009
document_store_str 1
active_str 0
description We identify a parametrically light dilaton by studying the perturbations of metastable vacua along a branch of regular supergravity backgrounds that are dual to four-dimensional confining field theories. The branch includes also stable and unstable solutions. The former encompass, as a special case, the geometry proposed by Witten as a holographic model of confinement. The latter approach a supersymmetric solution, by enhancing a condensate in the dual field theory. A phase transition separates the space of stable backgrounds from the metastable ones. In proximity of the phase transition, one of the lightest scalar states inherits some of the properties of the dilaton, despite not being particularly light.
published_date 2021-02-15T04:21:22Z
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