Multiboson signals in the UN2HDM

Abstract

We address multiboson production from a heavy $Z^{\prime }$ resonance in the context of the UN2HDM, a standard model extension with an additional $\text{U}(1{)}^{\prime }$ symmetry and an enlarged scalar sector with an extra doublet and a singlet. After taking into account theoretical and experimental constraints on the model, it turns out this type of signals - mostly uncovered by current searches - could be sizeable. We focus on three benchmark scenarios, each of them predicting up to 4000 multiboson events with the LHC Run 2 collected luminosity. Anomaly-detection methods could uncover those signals, if present in data.

LaTeX 13 pages. Added several discussions, matches version published in EPJC

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Cited by in corpus (2)

• Asymmetric di-Higgs signals of the next-to-minimal 2HDM with a $U(1)$ symmetry
• Minimal U(1) two-Higgs-doublet models for quark and lepton flavour