Reviving trinification models through an E6 -extended supersymmetric GUT
| Autor: | José Eliel Camargo-Molina, Jonas Wessén, Roman Pasechnik, Astrid Ordell, Marco O. P. Sampaio, António P. Morais |
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| Rok vydání: | 2017 |
| Předmět: |
Physics
Particle physics 010308 nuclear & particles physics Physics beyond the Standard Model High Energy Physics::Phenomenology Electroweak interaction Yukawa potential Supersymmetry Trinification 01 natural sciences Standard Model (mathematical formulation) Supermultiplet 0103 physical sciences Higgs boson 010306 general physics |
| Zdroj: | Physical Review D. 95 |
| ISSN: | 2470-0029 2470-0010 |
| DOI: | 10.1103/physrevd.95.075031 |
| Popis: | We present a supersymmetric (SUSY) model based on trinification [SU(3)]3 and family SU(3)F symmetries embedded into a maximal subgroup of E8, where the sectors of light Higgs bosons and leptons are unified into a single chiral supermultiplet. The common origin of gauge trinification and of the family symmetry from E8 separates the model from other trinification-based GUTs, as it protects, in particular, the Standard Model fermions from gaining mass until the electroweak symmetry is broken. Furthermore, it allows us to break the trinification symmetry via vacuum expectation values in SU(3)-adjoint scalars down to a left-right symmetric theory. Simultaneously, it ensures the unification of the gauge and Yukawa couplings as well as proton stability. Although the low-energy regime (e.g., mass hierarchies in the scalar sector determined by a soft SUSY-breaking mechanism) is yet to be established, these features are one key to revive the once very popular trinification-based GUTs. (Less) |
| Databáze: | OpenAIRE |
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