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

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.

12 pages, 3 figures

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Cited by in corpus (7)

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• Broad toplike vector quarks at LHC and HL-LHC
• Constraints on the quark mixing matrix with vector-like quarks
• Impact of a colored vector resonance on the collider constraints for top-like top partner
• Vector-like quarks with a scalar triplet
• Indian Contributions to LHC Theory
• Machine learning tagged boosted dark photon: A signature of fermionic portal matter at the LHC