Multiple Scales in Pati-Salam Unification Models
arXiv:1401.7891 · doi:10.1007/JHEP05(2014)064
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.
arXiv comment48 pages, 11 figures, version accepted for publication in JHEP
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- Predictive Pati-Salam theory of fermion masses and mixing
- BCS in the Sky: Signatures of Inflationary Fermion Condensation
- Beyond the standard model with six-dimensional spinors
- Unification with Vector-like fermions and signals at LHC
- Flavour Models with Three Higgs Generations
- Gravitational capture of magnetic monopoles by primordial black holes in the early universe
- On the cosmological abundance of magnetic monopoles
- Lepton-flavour violation in a Pati-Salam model with gauged flavour symmetry
- Combining Pati-Salam and Flavour Symmetries
- Fermion Masses and Mixing in Pati-Salam Unification with Modular Symmetry
- Gauge coupling unification with extra Higgs doublets