Boosted Top Quark Signals for Heavy Vector Boson Excitations in a Universal Extra Dimension Model

Details Boosted Top Quark Signals for Heavy Vector Boson Excitations in a Universal Extra Dimension Model Boosted Top Quark Signals for Heavy Vector Boson Excitations in a Universal Extra Dimension Model

2010-06-16

arxiv.org/abs/1006.3213v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 8 embedded figures

Scientific paper

In view of the fact that the $n = 1$ Kaluza-Klein (KK) modes in a model with a Universal Extra Dimension (UED), could mimic supersymmetry signatures at the LHC, it is necessary to look for the $n = 2$ KK modes, which have no analogues in supersymmetry. We discuss the possibility of searching for heavy $n = 2$ vector boson resonances -- especially the $g_2$ -- through their decays to a highly-boosted top quark-antiquark pair using recently-developed top-jet tagging techniques in the hadronic channel. It is shown that $t\bar{t}$ signals from the $n = 2$ gluon resonance are as efficient a discovery mode at the LHC as dilepton channels from the $\gamma_2$ and $Z_2$ resonances.

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