PoS - Proceedings of Science
Volume 398 - The European Physical Society Conference on High Energy Physics (EPS-HEP2021) - T10: Searches for New Physics
New neutral gauge bosons in supersymmetric $U(1)^\prime$ models at hadron colliders
M. Frank, L. Selbuz* and I. Turan
Full text: Not available
Abstract
We examine the production and decay modes of Z$^\prime$ boson at hadron colliders in an U(1)$^\prime$-extended MSSM. We choose a U(1)$^\prime$ model with a secluded sector, where the tension between the electroweak scale and developing a large enough mass for Z$^\prime$ is resolved by incorporating three additional SU(2) singlet fields into the model. We perform a detailed and systematic analysis of the production, followed by decays, including into supersymmetric particles, of a Z$^\prime$ boson with mass larger than 4 TeV, with particular emphasis on its possible discovery. We choose three different scenarios consistent with the latest available experimental data and relic density constraints. We concentrate on final signals involving $2\ell+{\not \!\! E_{T}}$, $4\ell+{\not \!\! E_{T}}$ and $6\ell+{\not \!\! E_{T}}$. Including possible SM backgrounds, we show the likelihood of observing a Z$^\prime$ boson is not promising for the HL-LHC at 14 TeV, but optimistic for 27 and 100 TeV.
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