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arXiv · 1509.06821

The Diboson Excesses in Leptophobic $U(1)_{\rm LP}$ Models from String Theories

Tianjun Li·James A. Maxin·Van E. Mayes·Dimitri V. Nanopoulos
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Abstract

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 $U(1)_{\rm LP}$ 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 $pp \to Z' \to jj/t \bar{t}/WW/Zh$ and discover the excess can be interpreted in both the leptophobic flipped $SU(5)\times U(1)_X$ models and intersecting D-branes.

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Tianjun Li, James A. Maxin, Van E. Mayes, Dimitri V. Nanopoulos. 2016-01-12. The Diboson Excesses in Leptophobic $U(1)_{\rm LP}$ Models from String Theories. https://doi.org/10.1103/physrevd.93.045007

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