20.500.12556/DKUM-85991 Flavor symmetries and automatic enhancement in the 6D supergravity swampland We argue for the quantum-gravitational inconsistency of certain 6D N ¼ ð1; 0Þ supergravity theories, whose anomaly-free gauge algebra g and hypermultiplet spectrum M were observed by Raghuram et al. [J. High Energy Phys. 07 (2021) 048] to be realizable only as part of a larger gauge sector ðg0 ⊃ g; M0 ⊃ MÞ in F-theory. To detach any reference to a string theoretic method of construction, we utilize flavor symmetries to provide compelling reasons why the vast majority of such ðg; MÞ theories are not compatible with quantum gravity constraints, and how the “automatic enhancement” to ðg0 ; M0 Þ remedies this. In the first class of models, with g0 ¼ g ⊕ h, we show that there exists an unbroken flavor symmetry h acting on the matter M, which, if ungauged, would violate the no-global-symmetries hypothesis. This argument also applies to 1-form center symmetries, which govern the gauge group topology and massive states in representations different from those of massless states. In a second class, we find that g is incompatible with the flavor symmetry of certain supersymmetric strings that must exist by the completeness hypothesis. supergravity theories supersymmetric strings quantum gravity constraints Gauge theories Higher-dimensional field theories strings & branes supergravity symmetries supergravitacija strune & brane kvantna gravitacija simetrije true false true APS Angleški jezik Slovenski jezik Znanstveno delo 2023-09-25 09:54:39 2023-09-25 09:54:39 2023-09-26 03:10:28 0000-00-00 00:00:00 2022 0 0 str. 1-16 Št. 4 Letn. 105 8. feb. 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2021-10-26 2022-01-08 2022-02-08 530.145 136975875 10.1103/PhysRevD.105.046005 2470-0029 Flavor_symmetries_and_automatic_en-Cvetic-2022.pdf Flavor_symmetries_and_automatic_en-Cvetic-2022.pdf 1 656AAE1D62CE27E092477BDC9C82AAAD d0567b2d76ef82f4e024cc51010e671fde4004f6ab4591b11e49b8a50e68180c a2767fd5-5b7a-11ee-ac19-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=172908 https://journals.aps.org/prd/abstract/10.1103/PhysRevD.105.046005 0 cd124889-5b78-11ee-ac19-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=172906 Univerza v Mariboru 0 0 0