Flavour non-universal UMSSM with minimal number of exotics

Abstract

We report the phenomenological implications of several family non-universal U(1)′ sub-models in the U(1)′-extended Minimal Supersysmmetric Standard Model (UMSSM) possesing an extra down quark type exotic field. In doing this, we have started by enforcing anomaly cancellation criteria to generate a number of solutions in which the extra U(1)′ charges of the particles are treated as free parameters. We have then imposed existing bounds coming from colliders and astrophysical observations on the assumed submodels and observed that current limits dictate certain charge orientations. © 2021 CERN. All rights reserved.