Swampland bounds on dark sectors

Abstract We use Swampland principles to theoretically disfavor regions of the parameter space of dark matter and other darkly charged particles that may exist. The Festina Lente bound, the analogue of the Weak-Gravity conjecture in de Sitter, places constraints on the mass and charge of dark particl...

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Main Authors: Miguel Montero, Julian B. Muñoz, Georges Obied
Format: Article
Language:English
Published: SpringerOpen 2022-11-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP11(2022)121
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author Miguel Montero
Julian B. Muñoz
Georges Obied
author_facet Miguel Montero
Julian B. Muñoz
Georges Obied
author_sort Miguel Montero
collection DOAJ
description Abstract We use Swampland principles to theoretically disfavor regions of the parameter space of dark matter and other darkly charged particles that may exist. The Festina Lente bound, the analogue of the Weak-Gravity conjecture in de Sitter, places constraints on the mass and charge of dark particles, which here we show cover regions in parameter space that are currently allowed by observations. As a consequence, a broad set of new ultra-light particles are in the Swampland, independently of their cosmic abundance, showing the complementarity of Quantum Gravity limits with laboratory and astrophysical studies. In parallel, a Swampland bound on the UV cutoff associated to the axion giving a Stückelberg photon its longitudinal mode translates to a new constraint on the kinetic mixings and masses of dark photons. This covers part of the parameter space targeted by upcoming dark-photon direct-detection experiments. Moreover, it puts astrophysically interesting models in the Swampland, including freeze-in dark matter through an ultra-light dark photon, as well as radio models invoked to explain the 21-cm EDGES anomaly.
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spelling doaj.art-ab830d9721dd4f6d96746f395fc742e02023-03-22T10:15:08ZengSpringerOpenJournal of High Energy Physics1029-84792022-11-0120221113110.1007/JHEP11(2022)121Swampland bounds on dark sectorsMiguel Montero0Julian B. Muñoz1Georges Obied2Department of Physics, Harvard UniversityCenter for Astrophysics | Harvard & SmithsonianRudolf Peierls Centre for Theoretical Physics, University of OxfordAbstract We use Swampland principles to theoretically disfavor regions of the parameter space of dark matter and other darkly charged particles that may exist. The Festina Lente bound, the analogue of the Weak-Gravity conjecture in de Sitter, places constraints on the mass and charge of dark particles, which here we show cover regions in parameter space that are currently allowed by observations. As a consequence, a broad set of new ultra-light particles are in the Swampland, independently of their cosmic abundance, showing the complementarity of Quantum Gravity limits with laboratory and astrophysical studies. In parallel, a Swampland bound on the UV cutoff associated to the axion giving a Stückelberg photon its longitudinal mode translates to a new constraint on the kinetic mixings and masses of dark photons. This covers part of the parameter space targeted by upcoming dark-photon direct-detection experiments. Moreover, it puts astrophysically interesting models in the Swampland, including freeze-in dark matter through an ultra-light dark photon, as well as radio models invoked to explain the 21-cm EDGES anomaly.https://doi.org/10.1007/JHEP11(2022)121Effective Field TheoriesModels for Dark MatterString Models
spellingShingle Miguel Montero
Julian B. Muñoz
Georges Obied
Swampland bounds on dark sectors
Journal of High Energy Physics
Effective Field Theories
Models for Dark Matter
String Models
title Swampland bounds on dark sectors
title_full Swampland bounds on dark sectors
title_fullStr Swampland bounds on dark sectors
title_full_unstemmed Swampland bounds on dark sectors
title_short Swampland bounds on dark sectors
title_sort swampland bounds on dark sectors
topic Effective Field Theories
Models for Dark Matter
String Models
url https://doi.org/10.1007/JHEP11(2022)121
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