Reviving trinification models through an E6 -extended supersymmetric GUT

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

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.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • University of Aveiro
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Subatomär fysik
Originalspråkengelska
Artikelnummer075031
TidskriftPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volym95
Utgivningsnummer7
StatusPublished - 2017 apr 1
PublikationskategoriForskning
Peer review utfördJa

Relaterad forskningsoutput

Wessén, J., 2018, Lund: Lund University, Faculty of Science, Department of Astronomy and Theoretical Physics. 196 s.

Forskningsoutput: AvhandlingDoktorsavhandling (sammanläggning)

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Related projects

Astrid Ordell & Roman Pasechnik

2016/09/012020/08/31

Projekt: Avhandling

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