Multiboson production in W' decays

Abstract

In models with an extra $\text{SU}(2{)}_R$ gauge group and an extended scalar sector, the cascade decays of the $W^{\prime }$ boson can provide various multiboson signals. In particular, diboson decays $W^{\prime }\to WZ$ can be suppressed while $W^{\prime }\to WZX$, with $X$ one of the scalars present in the model, can reach branching ratios around 4%. We discuss these multiboson signals focusing on possible interpretations of the ATLAS excess in fat jet pair production.

LaTeX 28 pages. v2: added comments about indirect constraints and LHC run 2 results. Final version to appear in JHEP

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• Minimal left-right symmetric intersecting D-brane model
• Effect of large light-heavy neutrino mixing and natural type-II seesaw dominance to lepton flavor violation and neutrinoless double beta decay
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