Eur. Phys. J. C (2015) 75: 264
https://doi.org/10.1140/epjc/s10052-015-3459-9

Regular Article - Theoretical Physics

Phenomenology of supersymmetric Z decays at the Large Hadron Collider

INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, 00044, Frascati, RM, Italy

^* e-mail: gennaro.corcella@lnf.infn.it

Received: 27 December 2014
Accepted: 14 May 2015
Published online: 16 June 2015

Abstract

I study the phenomenology of heavy neutral bosons , predicted in GUT-inspired U(1) models, at the Large Hadron Collider. In particular, I investigate possible signatures due to decays into supersymmetric particles, such as chargino, neutralino, and sneutrino pairs, leading to final states with charged leptons and missing energy. The analysis is carried out at  TeV, for a few representative points of the parameter space of the Minimal Supersymmetric Standard Model, suitably modified to accommodate the extra boson and consistent with the discovery of a Higgs-like boson with mass around 125 GeV. Results are presented for several observables and compared with those obtained for direct decays into lepton pairs, as well as direct production of supersymmetric particles. For the sake of comparison, phenomenology in an effective supersymmetric extension of the Sequential Standard Model is also discussed.