SU(5) Octet Scalar at the LHC

Understand

Color scalars are salient features of non-minimal SU(5) model, where Higgs sector is extended by 45-dimensional multiplet.

• We show that gauge coupling unification can be realized in this model with TeV octet scalar and intermediate (~10^6 GeV) color-triplet scalar at scale larger than 10^{15} GeV.
• We analyze the possible LHC signatures of these TeV octet scalars.
• We emphasize that multi-(b)-jet final states provide significant signal for direct probe of octet scalars at the LHC.