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キーワード:
High Energy Physics - Phenomenology, hep-ph
要旨:
In this talk, we present a minimal viable scenario that unifies the gauge
symmetries of the Standard Model (SM) and their breaking sector. Our
Gauge-Higgs Grand Unification setup employs 5D warped space with a $SU(6)$ bulk
gauge field that includes both a $SU(5)$ grand unified theory (GUT) and a Higgs
sector as a scalar component of the 5D vector field, solving the hierarchy
problem. By appropriately breaking the gauge symmetry on the boundaries of the
extra dimension the issue of light exotic new states, appearing generically in
such models, is eliminated and the SM fermion spectrum is naturally reproduced.
The Higgs potential is computed at one-loop, finding straightforward solutions
with a realistic $m_h = 125$ GeV. The problem of proton decay is addressed by
showing that baryon number is a hidden symmetry of the model. The presence of a
scalar leptoquark and a scalar singlet is highlighted, which might play a role
in solving further problems of the SM, allowing for example for electroweak
baryogenesis. Finally, the $X$ and $Y$ gauge bosons from $SU(5)$ GUTs are found
at collider accessible masses, opening a window to the unification structure at
low energies.
