# String-Inspired Special Grand Unification

@article{Yamatsu2017StringInspiredSG, title={String-Inspired Special Grand Unification}, author={Naoki Yamatsu}, journal={arXiv: High Energy Physics - Phenomenology}, year={2017} }

We discuss a grand unified theory (GUT) based on an $SO(32)$ GUT gauge group broken to its subgroups including a special subgroup. In the $SO(32)$ GUT on six-dimensional (6D) orbifold space $M^4\times T^2/\mathbb{Z}_2$, one generation of the SM fermions can be embedded into a 6D bulk Weyl fermion in the $SO(32)$ vector representation. We show that for a three generation model, all the 6D and 4D gauge anomalies in the bulk and on the fixed points are canceled out without exotic chiral fermions… Expand

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#### 8 Citations

Family Unification in Special Grand Unification

- Physics
- 2018

We discuss family unification in grand unified theory (GUT) based on an $SU(19)$ GUT gauge group broken to its subgroups including a special subgroup. In the $SU(19)$ GUT on the six-dimensional (6D)… Expand

$USp(32)$ Special Grand Unification

- Physics
- 2020

We discuss a grand unified theory (GUT) based on a $USp(32)$ GUT gauge group broken to its subgroups including a special subgroup. A GUT based on an $SO(32)$ GUT gauge group has been discussed on… Expand

Orbifold family unification using vectorlike representation on six dimensions

- Physics
- 2018

In orbifold family unification on the basis of $SU(N)$ gauge theory on the six-dimensional space-time $M^4\times T^2/Z_m$ ($m=2, 3, 4, 6$), enormous numbers of models with three families of the… Expand

Electroweak Symmetry Breaking and Mass Spectra in Six-Dimensional Gauge-Higgs Grand Unification

- Physics
- 2017

The mass spectra of the standard model particles are reproduced in the $SO(11)$ gauge-Higgs grand unification in the six-dimensional warped space without introducing exotic light fermions. Light… Expand

Is Symmetry Breaking into Special Subgroup Special?

- Physics
- Progress of Theoretical and Experimental Physics
- 2019

The purpose of this paper is to show that symmetry breaking into special subgroups is not special at all, contrary to the usual wisdom. To demonstrate this explicitly, we examine the dynamical… Expand

Linear Collider Signals of $Z'$ Bosons in GUT Inspired Gauge-Higgs Unification

- Physics
- 2021

In gauge-Higgs unification (GHU), the 4D Higgs boson appears as a part of the fifth dimensional component of 5D gauge field. Recently, an SO(11) GUT inspired SO(5) × U(1) × SU(3) GHU model has been… Expand

Dynamical breaking to special or regular subgroups in the SO(N) Nambu–Jona-Lasinio model

- Physics
- Progress of Theoretical and Experimental Physics
- 2020

It was recently shown that in four-dimensional $SU(N)$ Nambu–Jona-Lasinio (NJL) type models, the $SU(N)$ symmetry breaking into its special subgroups is not special but much more common than that… Expand

Fermion pair production at
e−e+
linear collider experiments in GUT inspired gauge-Higgs unification

- Physics
- 2020

Fermion pair production at e-e+ linear collider experiments with polarized e- and e+ beams is examined in the GUT inspired SO(5)×U(1)×SU(3) gauge-Higgs unification. There arises large parity… Expand

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