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A note on non-flat points in the SU(5) × U(1)PQ F-theory model.

Achmed-Zade, Ismail and García-Etxebarria, Iñaki and Mayrhofer, Christoph (2019) 'A note on non-flat points in the SU(5) × U(1)PQ F-theory model.', Journal of high energy physics., 2019 (5). p. 13.


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) × 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:Article
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Date accepted:15 April 2019
Date deposited:08 May 2019
Date of first online publication:03 May 2019
Date first made open access:No date available

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