  The trinification model is an interesting extension of the Standard Model
(SM) based on the gauge group $SU(3)_C\times SU(3)_L\times SU(3)_R$. We study
its low-energy phenomenology by constructing a low-energy effective field
theory, thereby reducing the number of particles and free parameters that need
to be studied. The resulting model predicts that several new scalar particles
have masses in the $\mathcal{O}\left(100\text{ GeV}\right)$ range. We study a
few of the interesting phenomenological scenarios, such as the presence of a
light fermiophobic scalar in addition to a SM-like Higgs, or a degenerate
(twin) Higgs state at 126 GeV. We point out regions of the parameter space that
lead to measurable deviations from SM predictions of the Higgs couplings. Hence
the trinification model awaits crucial tests at the Large Hadron Collider in
the coming years.

High Energy Physics - Phenomenology