Minimal SU(5) Asymptotic Grand Unification
| Autor: | Aldo Deandrea, Giacomo Cacciapaglia, Corentin Cot, Alan S. Cornell |
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| Přispěvatelé: | Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2020 |
| Předmět: |
High Energy Physics - Theory
Particle physics Proton decay p: decay FOS: Physical sciences baryogenesis 01 natural sciences Computer Science::Digital Libraries dark matter Standard Model Minimal model High Energy Physics - Phenomenology (hep-ph) orbifold: S(1)/Z(2) 0103 physical sciences grand unified theory: SU(5) Grand Unified Theory Gauge theory 010306 general physics Physics 010308 nuclear & particles physics [PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th] High Energy Physics::Phenomenology Yukawa potential Supersymmetry baryon number: conservation law High Energy Physics - Phenomenology High Energy Physics - Theory (hep-th) fixed point: ultraviolet [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] Baryon number model: minimal coupling: Yukawa |
| Zdroj: | Phys.Rev.D Phys.Rev.D, 2021, 104 (7), pp.075012. ⟨10.1103/PhysRevD.104.075012⟩ Physical Review |
| DOI: | 10.48550/arxiv.2012.14732 |
| Popis: | We present a minimal model of asymptotic grand unification based on an $SU(5)$ gauge theory in a compact $S^1/(\mathbb{Z}_2 \times \mathbb{Z}'_2)$ orbifold. The gauge couplings run to a unified fixed point in the UV, without supersymmetry. By construction, fermions are embedded in different $SU(5)$ bulk fields. As a consequence, baryon number is conserved, thus preventing proton decay, and the lightest Kaluza-Klein tier consists of new states that cannot decay into standard model ones. We show that the Yukawa couplings can be either in the bulk or localized, and run to an asymptotically free fixed point in the UV. The lightest massive state can play the role of Dark Matter, produced via baryogenesis, for a Kaluza-Klein mass of about $2.4$ TeV. Comment: 22 pages, 3 figures. v2: Extended discussion of the Yukawa running |
| Databáze: | OpenAIRE |
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