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arXiv · 1005.4414

Discovery potential of top-partners in a realistic composite Higgs model with early LHC data

Guenther Dissertori·Elisabetta Furlan·Filip Moortgat·Pascal Nef
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Abstract

Composite Higgs models provide a natural, non-supersymmetric solution to the hierarchy problem. In these models, one or more sets of heavy top-partners are typically introduced. Some of these new quarks can be relatively light, with a mass of a few hundred GeV, and could be observed with the early LHC collision data expected to be collected during 2010. We analyse in detail the collider signatures that these new quarks can produce. We show that final states with two (same-sign) or three leptons are the most promising discovery channels. They can yield a 5 sigma excess over the Standard Model expectation already with the 2010 LHC collision data. Exotic quarks of charge 5/3 are a distinctive feature of this model. We present a new method to reconstruct their masses from their leptonic decay without relying on jets in the final state.

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Guenther Dissertori, Elisabetta Furlan, Filip Moortgat, Pascal Nef. 2010-09-04. Discovery potential of top-partners in a realistic composite Higgs model with early LHC data. https://doi.org/10.1007/jhep09(2010)019

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