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arXiv · 1502.00985

Discrete Abelian gauge symmetries and axions

Gabriele Honecker·Wieland Staessens
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Abstract

We combine two popular extensions of beyond the Standard Model physics within the framework of intersecting D6-brane models: discrete Zn symmetries and Peccei-Quinn axions. The underlying natural connection between both extensions is formed by the presence of massive U(1) gauge symmetries in D-brane model building. Global intersecting D6-brane models on toroidal orbifolds of the type T6/Z2N and T6/Z2xZ2M with discrete torsion offer excellent playgrounds for realizing these extensions. A generation-dependent Z2 symmetry is identified in a global Pati-Salam model, while global left-right symmetric models give rise to supersymmetric realizations of the DFSZ axion model. In one class of the latter models, the axion as well as Standard Model particles carry a non-trivial Z3 charge.

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Gabriele Honecker, Wieland Staessens. 2015-02-03. Discrete Abelian gauge symmetries and axions. https://doi.org/10.1088/1742-6596%2F631%2F1%2F012080

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