Speaker
Description
We investigate extensions of the Twin Higgs model in which the twin color gauge symmetry and the Z2 mirror symmetry are spontaneously broken, by introducing a single new colored triplet, sextet, or octet scalar field and its twin along with a suitable scalar potential. This spontaneous Z2 breaking allows for a viable electroweak vacuum, and leads to dramatic differences between the visible and mirror sectors in terms of the low energy residual gauge symmetries, color confinement scales, and particle spectra. Several of our models feature a remnant SU(2) or SO(3) twin color gauge symmetry with a very low confinement scale in comparison to QCD. Couplings between the colored scalar and matter provide a new dynamical source of twin fermion masses, and lead to a variety of correlated visible sector effects that can be probed through precision measurements and collider searches.
