☆ 4.4 Article

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

JOURNAL OF HIGH ENERGY PHYSICS (2019)

Journal

JOURNAL OF HIGH ENERGY PHYSICS

Volume -, Issue 5, Pages -

Publisher

SPRINGER

DOI: 10.1007/JHEP05(2019)013

Keywords

F-Theory; Superstring Vacua; Brane Dynamics in Gauge Theories

Categories

Physics, Particles & Fields

Funding

IMPRS program of the MPP Munich
Munich Excellence Cluster for Fundamental Physics Origin and the Structure of the Universe

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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.

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