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Based on an $SU(2) \times SU(2) \times U(1)$ effective theory framework (aka$G221$ models), we investigate a leptophobic $SU(2)_L \times SU(2)_R \timesU(1)_{B-L}$ model, in which the right-handed $W^\prime$ boson has the mass ofaround 2 TeV, and predominantly couples to the standard model quarks and thegauge-Higgs sector. This model could explain the resonant excesses near 2 TeVreported by the ATLAS collaboration in the $WZ$ production decaying intohadronic final states, and by the CMS collaboration in the $Wh$ channeldecaying into $b\bar{b}\ell\nu$ and dijet final state. After imposing theconstraints from the electroweak precision and current LHC data, we find thatto explain the three excesses in $WZ$, $Wh$ and dijet channels, the $SU(2)_R$coupling strength $g_R$ favors the range of $0.47 \sim 0.68$. In this model,given a benchmark 2 TeV $W'$ mass, the $Z'$ mass is predicted to be around$2.9$ TeV if the doublet Higgs (LPD) is used to break the G221 symmetry,consistent with the 2.9 TeV $e^+e^-$ event recently observed at CMS. A $3 \sim5$ TeV mass is typically predicted for the triplet Higgs (LPT) symmetrybreaking scenario, can also be consistent with a 2.9 TeV dilepton signal. Thesesignatures can be further explored by the LHC Run-2 data.

G221 Interpretations of the Diboson and Wh Excesses