Abstract
Non-flat fibrations often appear in F-theory GUT models, and their interpretation is still somewhat mysterious. In this note we explore this issue in a model of particular phenomenological interest, the global SU(5) x U(1) Peccei-Quinn F-theory model. We present evidence that co-dimension three non-flat fibres give rise to higher order couplings in the effective four-dimensional superpotential more specifically, in our example we find 10 5 5 5 couplings.
Item Type: | Journal article |
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Faculties: | Physics |
Subjects: | 500 Science > 530 Physics |
ISSN: | 1029-8479 |
Language: | English |
Item ID: | 82840 |
Date Deposited: | 15. Dec 2021, 15:03 |
Last Modified: | 15. Dec 2021, 15:03 |