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arXiv · 0911.4064

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

Debajyoti Choudhury·Anindya Datta·Kirtiman Ghosh
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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, $γ_1$, 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.

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Debajyoti Choudhury, Anindya Datta, Kirtiman Ghosh. 2010-07-20. Deciphering Universal Extra Dimension from the top quark signals at the CERN LHC. https://doi.org/10.1007/jhep08(2010)051

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