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  • Yukawa hierarchies in global F-theory models [Elektronski vir]
    Cvetič, Mirjam ...
    We argue that global F-theory compactifications to four dimensions gener- ally exhibit higher rank Yukawa matrices from multiple geometric contributions known as Yukawa points. The holomorphic ... couplings furthermore have large hierarchies for generic complex structure moduli. Unlike local considerations, the compact setup realizes these features all through geometry, and requires no instanton corrections. As an example, we consider a concrete toy model with SU(5) x U(1) gauge symmetry. From the geometry, we find two Yukawa points for the 10-25-4 coupling, producing a rank two Yukawa matrix. Our methods allow us to track all complex structure dependencies of the holomorphic couplings and study the ratio numerically. This reveals hierarchies of O(10(5)) and larger on a full-dimensional subspace of the moduli space.
    Vir: The journal of high energy physics [Elektronski vir]. - ISSN 1029-8479 (art. 37, Issue 1, 8. jan. 2020, 25 str.)
    Vrsta gradiva - e-članek
    Leto - 2020
    Jezik - angleški
    COBISS.SI-ID - 20848899

    Povezava(-e):

    Digitalna knjižnica Univerze v Mariboru – DKUM
    DOI

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