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Reviving trinification models through an E6 -extended supersymmetric GUT

Camargo-Molina, José E. LU ; Morais, António P. LU ; Ordell, Astrid LU ; Pasechnik, Roman LU ; Sampaio, Marco O P and Wessén, Jonas LU (2017) In Physical Review D - Particles, Fields, Gravitation and Cosmology 95(7).
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... (More)

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.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review D - Particles, Fields, Gravitation and Cosmology
volume
95
issue
7
article number
075031
publisher
American Physical Society
external identifiers
  • wos:000400142100008
  • scopus:85019589686
ISSN
2470-0010
DOI
10.1103/PhysRevD.95.075031
project
Model building and pheno
language
English
LU publication?
yes
id
d40699d8-0432-40ac-908c-0c964512e3ce
date added to LUP
2017-06-13 14:13:00
date last changed
2025-01-07 15:18:06
@article{d40699d8-0432-40ac-908c-0c964512e3ce,
  abstract     = {{<p>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.</p>}},
  author       = {{Camargo-Molina, José E. and Morais, António P. and Ordell, Astrid and Pasechnik, Roman and Sampaio, Marco O P and Wessén, Jonas}},
  issn         = {{2470-0010}},
  language     = {{eng}},
  month        = {{04}},
  number       = {{7}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review D - Particles, Fields, Gravitation and Cosmology}},
  title        = {{Reviving trinification models through an E6 -extended supersymmetric GUT}},
  url          = {{http://dx.doi.org/10.1103/PhysRevD.95.075031}},
  doi          = {{10.1103/PhysRevD.95.075031}},
  volume       = {{95}},
  year         = {{2017}},
}