2018/01/31 by Anne Ernst, Andreas Ringwald, Carlos Tamarit · 3 citations
Physics and Astronomy · #Axion #Baryogenesis #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark energy #Dark matter #Gauge (firearms) #Gauge boson #Gauge theory #Goldstone boson #Grand Unified Theory #Neutrino #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum mechanics #Spontaneous symmetry breaking #Standard Model (mathematical formulation) #Strong CP problem #Supersymmetry #Symmetry breaking #Theoretical physics #hep-ph
paper · pdf · doi:10.1007/jhep02(2018)103
published as JHEP 02 (2018) 103 · 73 pages, 12 figures. V2. Published version
openalex publication_date 2018/02/01 · arxiv created 2018/05/07 · arxiv updated 2018/05/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Non-supersymmetric Grand Unified SO(10) × U(1)PQ models have all the ingredients to solve several fundamental problems of particle physics and cosmology — neutrino masses and mixing, baryogenesis, the non-observation of strong CP violation, dark matter, inflation — in one stroke. The axion — the pseudo Nambu-Goldstone boson arising from the spontaneous breaking of the U(1)PQ Peccei-Quinn symmetry — is the prime dark matter candidate in this setup. We determine the axion mass and the low energy couplings of the axion to the Standard Model particles, in terms of the relevant gauge symmetry breaking scales. We work out the constraints imposed on the latter by gauge coupling unification. We discuss the cosmological and phenomenological implications.