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  • Flavor symmetries and automatic enhancement in the 6D supergravity swampland [Elektronski vir]
    Cvetič, Mirjam ; Lin, Ling, fizik ; Turner, Andrew P., fizik
    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.
    Vir: Physical review. D. [Elektronski vir]. - ISSN 2470-0029 (art. 046005, Vol. 105, issue 4, 8. feb. 2022, str. 1-16)
    Vrsta gradiva - e-članek
    Leto - 2022
    Jezik - angleški
    COBISS.SI-ID - 136975875

    Povezava(-e):

    https://journals-aps-org.ezproxy.lib.ukm.si/prd/pdf/10.1103/PhysRevD.105.046005
    Digitalna knjižnica Univerze v Mariboru – DKUM
    DOI

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