UNIVERSAL EXTRA DIMENSIONS AND SUPERSYMMETRY AT THE HL/HE-LARGE HADRON COLLIDER

Universal Extra Dimensional (UED) and Supersymmetric (SUSY) models show very similar signals at hadron colliders. In the minimal UED (mUED) where the mass spectrum is compressed, the production of level-1 KK quarks and/or gluons produce multi-jet and/or multi-lepton + missing transverse momenta final state as in the case of SUSY models with R-parity conservation and compressed mass spectrum. Moreover, this similarity can possibly be carried over to non-degenerate mass spectra in next-to-minimal UED (nmUED) model that is the extension of the mUED model with fermion bulk mass term μ and brane localized kinetic terms r, hence, completing the faking in both models. In this regard, we simulated the production of colored level-1 KK particles and their decays resulting in multi-jet + missing transverse momenta signals in both models at 14 TeV LHC and showed that the similarity of both models is indeed the case even with non-compressed mass spectr