Symmetry Restored in Dibosons at the LHC?
Abstract
A number of LHC resonance search channels display an excess in the invariant mass region of 1.8 - 2.0 TeV. Among them is a 3.4\,σ excess in the fully hadronic decay of a pair of Standard Model electroweak gauge bosons, in addition to potential signals in the HW and dijet final states. We perform a model-independent cross-section fit to the results of all ATLAS and CMS searches sensitive to these final states. We then interpret these results in the context of the Left-Right Symmetric Model, based on the extended gauge group SU(2)L× SU(2)R× U(1)', and show that a heavy right-handed gauge boson WR can naturally explain the current measurements with just a single coupling gR 0.4. In addition, we discuss a possible connection to dark matter.
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