Deciphering Universal Extra Dimension from the top quark signals at the CERN LHC

Abstract

Models based on Universal Extra Dimensions predict Kaluza-Klein (KK) excitations of all Standard Model (SM) particles. We examine the pair production of KK excitations of top- and bottom-quarks at the Large Hadron Collider. Once produced, the KK top/bottom quarks can decay to $b$-quarks, leptons and the lightest KK-particle, ${\gamma }_1$, resulting in 2 $b$-jets, two opposite sign leptons and missing transverse momentum, thereby mimicing top-pair production. We show that, with a proper choice of kinematic cuts, an integrated luminosity of 100 fb${}^{-1}$ would allow a discovery for an inverse radius upto $R^{-1}=750$ GeV.

18 pages, 14 figures, Accepted for publication in JHEP

References in corpus (6)

• Updated predictions for the total production cross sections of top and of heavier quark pairs at the Tevatron and at the LHC
• QCD radiation in the production of heavy colored particles at the LHC
• Search for Higgs bosons of the Universal Extra Dimensions at the Large Hadron Collider
• Production of Higgs boson excitations of universal extra dimension at the Large Hadron Collider
• Extra-dimensional relaxation of the upper limit of the lightest supersymmetric neutral Higgs mass
• The Excited Scalars of the Universal Extra Dimension Model

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