The Diboson Excesses in Leptophobic $U(1{)}_{\mathrm{L}\mathrm{P}}$ Models from String Theories

The ATLAS Collaboration has reported excesses in the search for resonant diboson production with decay modes to hadronic final states at a diboson invariant mass around 2 TeV in boosted jets from $WZ$, $W^{+}{W}^{-}$, and $ZZ$ channels. Given potential contamination, we investigate the anomalies in leptophobic $U(1{)}_{\mathrm{L}\mathrm{P}}$ models. We show that leptophobic models can be constructed in flipped $SU(5)\times U(1{)}_X$ models from free fermionic string constructions and Pati-Salam models from D-brane constructions. Additionally, we perform a collider phenomenological analysis to study production cross sections for $pp\to Z^{\mathrm{\prime }}\to jj\mathrm{/}t\bar{t}\mathrm{/}WW\mathrm{/}Zh$ and discover the excess can be interpreted in both the leptophobic flipped $SU(5)\times U(1{)}_X$ models and intersecting D-branes.