3-8 July 2016
The University of Melbourne
Australia/Melbourne timezone

From E8-inspired SUSY trinification to a L-R symmetric theory

4 Jul 2016, 17:10
20m
Alice Hoy Room 225 ()

Alice Hoy Room 225

Talk SUSY Models SUSY Models

Speaker

Antonio Morais (Universities of Aveiro and Lund)

Description

In this talk we propose a new supersymmetric model based on the trinification gauge group with global SU(3) flavour symmetry. We aim at solving the major issues of conventional trinification GUTs, such us multi-TeV SM fermion masses, as well as providing a natural way to introduce a SU(2)_L x SU(2)_R symmetry. We investigate whether it is possible to spontaneously break the original gauge symmetry and find that the minimal field content allowing for stable vacuum solutions requires three copies of a full E6 27-plet, three gauge octets from an adjoint 78-plet and a flavour octet, all belonging to a common fundamental 246-plet of E8. Unlike older realizations, the new flavour symmetry forbids leptons from acquiring tree-level masses naturally suppressing them from the GUT scale. Besides gauge coupling unification we also predict novel features such as top-bottom-tau Yukawa unification alongside with Higgs-lepton unification, which are only possible in supersymmetric realizations of the trinification model.

Primary author

Antonio Morais (Universities of Aveiro and Lund)

Co-authors

Ms Astrid Ordell (Lund University) Jonas Wessén (Lund University) Dr José Eliel Camargo Molina (Lund University) Marco Oliveira Pena Sampaio (University of Aveiro) Roman Pasechnik (Lund University)

Presentation Materials