SU(5) aGUT: a minimal asymptotic grand unification model

Giacomo Cacciapaglia (1, 2) , Ammar Abdalgabar , Corentin Cot (3) , Alan S. Cornell , Aldo Deandrea (1, 2) , Mohammed Omer Khojali

1 IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
2 UCBL - Université Claude Bernard Lyon 1
3 IJCLab - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie

We present a new grand unification paradigm, where gauge couplings do not need to be equal at any given scale, instead they run towards the same fixed point in the deep ultraviolet. We provide a concrete example based on SU(5) with a compactified extra space dimension. By construction, fermions are embedded in different SU(5) bulk fields, hence baryon number is conserved and proton decay is forbidden. The lightest Kaluza-Klein tier consists of stable states, providing an asymmetric Dark Matter candidate via their baryonic charges, with a mass of 2.4 TeV. The model features an interesting and predictive flavour structure.

Mots clés: coupling; gauge; dark matter; asymmetry; p; decay; baryon number; conservation law; SU(5); grand unified theory; compactification; Kaluza-Klein; stability; ultraviolet; structure; flavor; fixed point; TeV

Domaines: Physique des Hautes Energies - Théorie [hep-th]; Physique des Hautes Energies - Phénoménologie [hep-ph]

Giacomo Cacciapaglia, Ammar Abdalgabar, Corentin Cot, Alan S. Cornell, Aldo Deandrea, et al.. SU(5) aGUT: a minimal asymptotic grand unification model. 41st International Conference on High Energy Physics, Jul 2022, Bologna, Italy. pp.419, ⟨10.22323/1.414.0419⟩. ⟨hal-03878852⟩