English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Pro

Presents the zaia usage as premium feature

ZAIA

Presents AI Discovery search usage as a premium feature

AI Discovery

Presents AI Discovery explain and summary usage as a premium feature

Content Analysis

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Presents the pdf analysis as premium feature

PDF Analysis

1500 Top-up

3000 Top-up

Zendy Basic

2500 Top-up

Zendy Unlimited

Presents the access of premium content as premium feature

Premium Content

We study grand unified models in the five-dimensional space-time where theextra dimension is compactified on $S^1/Z_2$. The spontaneous breaking ofunified gauge symmetries is achieved via vacuum expectation values of theextra-dimensional components of gauge fields. We derive one-loop effectivepotentials for the zero modes of the gauge fields in SU(7), SU(8), SO(10), and$E_6$ models. In each model, the rank of the residual gauge symmetry thatrespects the boundary condition imposed at the orbifold fixed points is higherthan that of the standard model. We verify that the residual symmetry is brokento the standard model gauge symmetry at the global minima of the effectivepotential for certain sets of bulk fermion fields in each model.

The Standard Model Gauge Symmetry from Higher-Rank Unified Groups in Grand Gauge-Higgs Unification Models