The quantum vacuum of the minimal SO(10) GUT
Abstract
We reexamine the longstanding no-go excluding all potentially viable SO(10) -> SU(3)_c x SU(2)_L x U(1)_Y symmetry breaking patterns within the minimal renormalizable non-supersymmetric SO(10) GUT framework featuring the 45-dimensional adjoint representation in the Higgs sector. A simple symmetry argument indicates that quantum effects do change the vacuum structure of the model dramatically. A thorough analysis of the one-loop effective potential reveals that the phenomenologically favoured symmetry breaking chains passing through the SU(4)_C x SU(2)_L x U(1)_R or SU(3)_c x SU(2)_L x SU(2)_R x U(1)_B-L intermediate stages are, indeed, supported at the quantum level. This brings the class of minimal non-supersymmetric SO(10) GUTs back from oblivion, providing a new ground for a potentially realistic model building.
Keywords
Cite
@article{arxiv.1010.0338,
title = {The quantum vacuum of the minimal SO(10) GUT},
author = {Stefano Bertolini and Luca Di Luzio and Michal Malinsky},
journal= {arXiv preprint arXiv:1010.0338},
year = {2015}
}
Comments
5 pages, 1 figure, proceedings submission for PASCOS'10