Abstract
The ATLAS excess in fat jet pair production is kinematically compatible with the decay of a heavy resonance into two gauge bosons plus an extra particle. This hypothesis would explain the absence of such a large excess in the analogous CMS analysis of fat dijet final states, as well as the negative results of diboson resonance searches in the semi-leptonic decay modes. If the extra particle is the Higgs boson, this hypothesis might also explain — statistical fluctuations aside — why the CMS search for W H resonances in the semi-leptonic channel finds some excess while in the fully hadronic one it does not have a significant deviation.
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Aguilar-Saavedra, J.A. Triboson interpretations of the ATLAS diboson excess. J. High Energ. Phys. 2015, 99 (2015). https://doi.org/10.1007/JHEP10(2015)099
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DOI: https://doi.org/10.1007/JHEP10(2015)099