Consistency and interpretation of the LHC dijet excesses

ATLAS observed a limit for the cross section of dijet resonances, which is weaker than expected mass slightly below $\ensuremath{\approx}1\text{ }\text{ }\mathrm{TeV}$. In addition, CMS reported hints (nonresonant) pair production resonances $X$ via particle $Y$ at very similar range with local (global) significance $3.6\ensuremath{\sigma}$ ($2.5\ensuremath{\sigma}$) ${m}_{X}\ensuremath{\approx}950\text{ }\mathrm{GeV}$. this article, we show that, using preferred ${m}_{X}$ from analysis, one can reinterpret analysis didijets in terms resonant search $Y\ensuremath{\rightarrow}XX$, significantly reduced look-elsewhere effect, finding an excess ${m}_{Y}\ensuremath{\approx}3.6\text{ }\mathrm{TeV}$ $4.0\ensuremath{\sigma}$ ($3.2\ensuremath{\sigma}$) locally (globally). We present two possible UV completions capable explaining (di)dijet excesses, containing scalar diquarks, other involving heavy gluons based on $SU(3{)}_{1}\ifmmode\times\else\texttimes\fi{}SU(3{)}_{2}\ifmmode\times\else\texttimes\fi{}SU(3{)}_{3}$ gauge symmetry, spontaneously broken to $SU(3)$ color. latter case, nonperturbative couplings are required, pointing toward composite or extradimensional framework. fact, 5D anti--de Sitter space-time, obtains correct ratio ${m}_{X}/{m}_{Y}$, assuming lowest-lying resonance, and predicts third resonance around $\ensuremath{\approx}2.2\text{