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arXiv · 1405.0476

New signals for singlet Higgs and vector-like quarks at the LHC

Durmus Karabacak·Satya Nandi·Santosh Kumar Rai
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Abstract

We consider an extension of the Standard Model involving a singlet Higgs and down type vector-like quarks in the light of the current LHC Higgs data. For a good range of the parameters of the Higgs potential, and a mass range for the heavy vector-like quark, we find that the singlet heavy Higgs arising from the production and decay of the vector-like quarks give rise to (2b~4t) signal. The subsequent decay of the top quarks to $b W^{+}$ give rise to a final state with six b quarks, two same-sign charged leptons and missing transverse momenta with observable cross-sections at the 14 TeV run of the Large Hadron Collider. The Standard Model background for such a final state is practically negligible.

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Durmus Karabacak, Satya Nandi, Santosh Kumar Rai. 2014-05-02. New signals for singlet Higgs and vector-like quarks at the LHC. https://doi.org/10.1016/j.physletb.2014.08.065

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