Multiboson signals in the UN2HDM

• Published in: The European physical journal. C, Particles and fields Vol. 82; no. 11; pp. 1080 - 13
• Main Authors: Aguilar-Saavedra, J. A., Joaquim, F. R., Seabra, J. F.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-11-2022; Springer; Springer Nature B.V; SpringerOpen
• Subjects: Astronomy; Astrophysics and Cosmology; Constraint modelling; Elementary Particles; Hadrons; Heavy Ions; Luminosity; Measurement Science and Instrumentation; Nuclear Energy; Nuclear Physics; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Regular Article - Theoretical Physics; String Theory; Symmetry
• ISSN: 1434-6052; 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-022-11046-w

We address multiboson production from a heavy
Z
′
resonance in the context of the UN2HDM, a standard model extension with an additional
U
(
1
)
′
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.