Multiple Scales in Pati-Salam Unification Models
High Energy Physics - Phenomenology
2015-06-18 v2
Abstract
We investigate models where gauge unification (GUT) proceeds in steps that include Pati-Salam symmetry. Beyond the Standard Model, we allow for a well-defined set of small representations of the GUT gauge group. We show that all possible chains of Pati-Salam symmetry breaking can be realized in accordance with gauge-coupling unification. We identify, in particular, models with unification near the Planck scale, with intermediate left-right or SU(4) quark-lepton symmetries that are relevant for flavor physics, with new colored particles at accessible energies, and with an enlarged electroweak Higgs sector. We look both at supersymmetric and non-supersymmetric scenarios.
Cite
@article{arxiv.1401.7891,
title = {Multiple Scales in Pati-Salam Unification Models},
author = {Florian Hartmann and Wolfgang Kilian and Karsten Schnitter},
journal= {arXiv preprint arXiv:1401.7891},
year = {2015}
}
Comments
48 pages, 11 figures, version accepted for publication in JHEP