Leptophobic $Z^{\prime }$ in supersymmetry and where to find them

Abstract

This report presents possible loopholes in heavy $Z^{\prime }$ searches which are concentrated around high mass resonances. We present a scenario where massive neutral vector boson $Z^{\prime }$, predicted by $E_6$-inspired $U(1{)}^{\prime }$ models, can become leptophobic due to kinetic mixing between $Z-Z^{\prime }$. Such a scenario can avoid high-mass dilepton resonance searches. Furthermore, we propose a channel through supersymmetric cascade decays to observe leptophobic $Z^{\prime }$. We show that it is possible to reach up to $8\sigma$ at $\sqrt{s}=14$ TeV and 3 ab${}^{-1}$ integrated luminosity. This report follows the steps of the work that has been conducted in ref. [arXiv:1711.06302].

Comments: 8 pages (10 with ref.), 6 figures. Text of the presentation at the 11th Int. Symposium Quantum Theory and Symmetries (July 1st to 5th, 2019, CRM, Univ. of Montreal), to be published in the proceedings (CRM Series on Mathematical Physics, Springer, 2020)