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arXiv · 1705.02526

Novel signatures for vector-like quarks

J. A. Aguilar-Saavedra·D. E. López-Fogliani·C. Muñoz
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Abstract

We consider supersymmetric extensions of the standard model with a vector-like doublet $(T \, B)$ of quarks with charge $2/3$ and $-1/3$, respectively. Compared to non-supersymmetric models, there is a variety of new decay modes for the vector-like quarks, involving the extra scalars present in supersymmetry. The importance of these new modes, yielding multi-top, multi-bottom and also multi-Higgs signals, is highlighted by the analysis of several benchmark scenarios. We show how the triangles commonly used to represent the branching ratios of the `standard' decay modes of the vector-like quarks involving $W$, $Z$ or Higgs bosons can be generalised to include additional channels. We give an example by recasting the limits of a recent heavy quark search for this more general case.

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J. A. Aguilar-Saavedra, D. E. López-Fogliani, C. Muñoz. 2017-06-16. Novel signatures for vector-like quarks. https://doi.org/10.1007/jhep06(2017)095

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