Heavy Axion from a Confining Mirror GUT

Fuente: arXiv
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Main Authors: Cacciapaglia, Giacomo, Csáki, Csaba, Ma, Teng
Format: Preprint
Published: 2026
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author Cacciapaglia, Giacomo
Csáki, Csaba
Ma, Teng
author_facet Cacciapaglia, Giacomo
Csáki, Csaba
Ma, Teng
contents We propose a new framework for solving the strong CP problem via a heavy axion, using mirror symmetry and grand unification. The mirror GUT sector remains unbroken and dynamically generates a calculable heavy mass scale via confinement without fine tuning. Models in this class feature a heavy axion, whose potential is less sensitive to Planck scale corrections, as well as a rich hidden sector from the confined mirror GUT. The solution to the strong CP problem remains unspoiled by the presence of additional phases in the GUT Yukawas, yet allowing the possibility of electric dipole moments within the reach of future experiments. Our proposal offers new directions in GUT model building, axion phenomenology, dark matter and cosmology.
format Preprint
id arxiv_https___arxiv_org_abs_2605_28954
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Heavy Axion from a Confining Mirror GUT
Cacciapaglia, Giacomo
Csáki, Csaba
Ma, Teng
High Energy Physics - Phenomenology
High Energy Physics - Theory
We propose a new framework for solving the strong CP problem via a heavy axion, using mirror symmetry and grand unification. The mirror GUT sector remains unbroken and dynamically generates a calculable heavy mass scale via confinement without fine tuning. Models in this class feature a heavy axion, whose potential is less sensitive to Planck scale corrections, as well as a rich hidden sector from the confined mirror GUT. The solution to the strong CP problem remains unspoiled by the presence of additional phases in the GUT Yukawas, yet allowing the possibility of electric dipole moments within the reach of future experiments. Our proposal offers new directions in GUT model building, axion phenomenology, dark matter and cosmology.
title Heavy Axion from a Confining Mirror GUT
topic High Energy Physics - Phenomenology
High Energy Physics - Theory
url https://arxiv.org/abs/2605.28954