Can New Colored Particles Illuminate the Higgs?

Understand

We analyze the behavior of Higgs to diphoton rate and Higgs gluon-gluon production cross section in minimal extensions of the Standard Model comprising new colored vector-like fermions that do not mix with the ordinary ones.

• We compare these information with constraints coming from electroweak precision measurements.
• We compute pair production cross sections for the lightest fermion and discuss the LHC bounds.
• Finally, we study the phenomenology of possible quarkonium states composed by these new colored fermions.