Abstract
The hints from the LHC for the existence of a W ′ boson of mass around 1.9 TeV point towards a certain SU(2) L × SU(2) R × U(1) B−L gauge theory with an extended Higgs sector. We show that the decays of the W ′ boson into heavy Higgs bosons have sizable branching fractions. Interpreting the ATLAS excess events in the search for same-sign lepton pairs plus b jets as arising from W ′ cascade decays, we estimate that the masses of the heavy Higgs bosons are in the 400-700 GeV range.
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Dobrescu, B.A., Liu, Z. Heavy Higgs bosons and the 2 TeV W ′ boson. J. High Energ. Phys. 2015, 118 (2015). https://doi.org/10.1007/JHEP10(2015)118
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DOI: https://doi.org/10.1007/JHEP10(2015)118