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Gauged 2-form symmetries in 6D SCFTs coupled to gravity

Braun, Andreas P.; Larfors, Magdalena; Oehlmann, Paul-Konstantin

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Magdalena Larfors

Paul-Konstantin Oehlmann


We study six dimensional supergravity theories with superconformal sectors (SCFTs). Instances of such theories can be engineered using type IIB strings, or more generally F-Theory, which translates field theoretic constraints to geometry. Specifically, we study the fate of the discrete 2-form global symmetries of the SCFT sectors. For both (2, 0) and (1, 0) theories we show that whenever the charge lattice of the SCFT sectors is non-primitively embedded into the charge lattice of the supergravity theory, there is a subgroup of these 2-form symmetries that remains unbroken by BPS strings. By the absence of global symmetries in quantum gravity, this subgroup much be gauged. Using the embedding of the charge lattices also allows us to determine how the gauged 2-form symmetry embeds into the 2-form global symmetries of the SCFT sectors, and we present several concrete examples, as well as some general observations. As an alternative derivation, we recover our results for a large class of models from a dual perspective upon reduction to five dimensions.


Braun, A. P., Larfors, M., & Oehlmann, P. (2021). Gauged 2-form symmetries in 6D SCFTs coupled to gravity. Journal of High Energy Physics, 2021(12), Article 132.

Journal Article Type Article
Acceptance Date Nov 24, 2021
Online Publication Date Dec 20, 2021
Publication Date 2021
Deposit Date Jan 4, 2022
Publicly Available Date Jan 4, 2022
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2021
Issue 12
Article Number 132


Published Journal Article (735 Kb)

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Copyright Statement
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.

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