Light dilaton near critical points in top-down holography

Elander, Daniel; Faedo, Antón F.; Piai, Maurizio; Rodgers, Ronnie; Subils, Javier G.

doi:10.1103/1wqc-vk7q

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Light dilaton near critical points in top-down holography

Daniel Elander

, Antón F. Faedo

, Maurizio Piai

, Ronnie Rodgers

, Javier G. Subils

Physical Review D, Volume: 112, Issue: 12

Swansea University Author: Maurizio Piai

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DOI (Published version): 10.1103/1wqc-vk7q

Abstract

We study a class of UV-complete, strongly coupled, confining three-dimensional field theories, that exhibit a novel stabilisation mechanism for the mass of the lightest scalar composite state, relying on the existence of a critical point. The theories admit a holographic dual description in terms of...

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Published in:	Physical Review D
ISSN:	2470-0010 2470-0029
Published:	American Physical Society (APS) 2025
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa71044

first_indexed	2025-12-02T09:23:22Z
last_indexed	2026-01-17T05:33:14Z
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spelling	2026-01-16T16:53:39.9028048 v2 71044 2025-12-02 Light dilaton near critical points in top-down holography 3ce295f2c7cc318bac7da18f9989d8c3 0000-0002-2251-0111 Maurizio Piai Maurizio Piai true false 2025-12-02 BGPS We study a class of UV-complete, strongly coupled, confining three-dimensional field theories, that exhibit a novel stabilisation mechanism for the mass of the lightest scalar composite state, relying on the existence of a critical point. The theories admit a holographic dual description in terms of regular backgrounds in eleven-dimensional supergravity. Their phase diagram includes a line of first-order phase transitions ending at the critical point, where the transition becomes of second order. We calculate the mass spectrum of bound states of the field theory, by considering fluctuations around thebackground solutions, and find that, near the critical point, a hierarchy of scales develops, such that one state becomes parametrically light. We identify this state as the dilaton, the pseudo-Nambu-Goldstone boson associated with the spontaneous breaking of approximate scale invariance. This stabilisationmechanism might be exploited to address hierarchy problems in particle and astroparticle physics. Journal Article Physical Review D 112 12 American Physical Society (APS) 2470-0010 2470-0029 19 12 2025 2025-12-19 10.1103/1wqc-vk7q COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Other A. F. is partially supported by the AEI and the MCIU through the Spanish Grant No. PID2021-123021NB-I00. The work of M. P. has been supported by the STFC Consolidated Grants No. ST/T000813/1 and No. ST/X000648/1. M. P. received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program under Grant Agreement No. 813942. The work of R. R. was supported by the European Union’s Horizon Europe research and innovation program under Marie Sklodowska-Curie Grant Agreement No. 101104286. Nordita is supported in part by Nordforsk. 2026-01-16T16:53:39.9028048 2025-12-02T09:12:09.1540028 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Daniel Elander 0000-0001-6348-8021 1 Antón F. Faedo 0000-0002-3887-2088 2 Maurizio Piai 0000-0002-2251-0111 3 Ronnie Rodgers 0000-0002-4826-6540 4 Javier G. Subils 0000-0003-0104-9722 5 71044__35879__d91da4c17c624875a8b1a6aee05e0b01.pdf PRD-1wqc-vk7q.pdf 2025-12-19T17:09:49.1627349 Output 565480 application/pdf Version of Record true Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. true eng https://creativecommons.org/licenses/by/4.0/ 344 Ronnie Rodgers 0000-0002-4826-6540 ronnie.rodgers@su.se true 10.5281/zenodo.15004578 false
title	Light dilaton near critical points in top-down holography
spellingShingle	Light dilaton near critical points in top-down holography Maurizio Piai
title_short	Light dilaton near critical points in top-down holography
title_full	Light dilaton near critical points in top-down holography
title_fullStr	Light dilaton near critical points in top-down holography
title_full_unstemmed	Light dilaton near critical points in top-down holography
title_sort	Light dilaton near critical points in top-down holography
author_id_str_mv	3ce295f2c7cc318bac7da18f9989d8c3
author_id_fullname_str_mv	3ce295f2c7cc318bac7da18f9989d8c3_***_Maurizio Piai
author	Maurizio Piai
author2	Daniel Elander Antón F. Faedo Maurizio Piai Ronnie Rodgers Javier G. Subils
format	Journal article
container_title	Physical Review D
container_volume	112
container_issue	12
publishDate	2025
institution	Swansea University
issn	2470-0010 2470-0029
doi_str_mv	10.1103/1wqc-vk7q
publisher	American Physical Society (APS)
college_str	Faculty of Science and Engineering
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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	We study a class of UV-complete, strongly coupled, confining three-dimensional field theories, that exhibit a novel stabilisation mechanism for the mass of the lightest scalar composite state, relying on the existence of a critical point. The theories admit a holographic dual description in terms of regular backgrounds in eleven-dimensional supergravity. Their phase diagram includes a line of first-order phase transitions ending at the critical point, where the transition becomes of second order. We calculate the mass spectrum of bound states of the field theory, by considering fluctuations around thebackground solutions, and find that, near the critical point, a hierarchy of scales develops, such that one state becomes parametrically light. We identify this state as the dilaton, the pseudo-Nambu-Goldstone boson associated with the spontaneous breaking of approximate scale invariance. This stabilisationmechanism might be exploited to address hierarchy problems in particle and astroparticle physics.
published_date	2025-12-19T05:34:17Z
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Light dilaton near critical points in top-down holography

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