LHC diphoton excess from colorful resonances

Understand

Motivated by the possible diphoton excess around $750~\rm{GeV}$ observed by ATLAS and CMS at $13~\rm{TeV}$, we consider a coloron model from $\rm{SU}(3)_1 \times \rm{SU}(3)_2$ spontaneously breaking to the Standard Model $\rm{SU}(3)_C$.

• A colored massive vector boson is resonantly produced by $q \bar q $ in proton collision, followed by a colored scalar cascade decay.
• This process gives two photons and one jet in the final states.
• And the kinetic edge of the two photons can be an interpretation of the diphoton excess, while satisfying the dijet, $\rm{t}\bar{t}$, jet+photon resonance constraints.