Discovering chiral Higgsinos at the CERN LHC

The concept of chirality is extended to the minimal supersymmetric standard model and the μ-term is forbidden by a gauged U(1)' symmetry. R-parity automatically emerges after symmetry breaking, suppressing proton decay and protecting the lightest supersymmetric particle. Exotics charged under the standard model pose a challenge to traditional SU(5) unification, but unification is still implemented in deconstructed grand unified theories. Because of the multitude of additional states to the minimal supersymmetric standard model, the Z' has a large width, and the standard model background, neglected in previous theoretical studies, becomes important for Z' discovery. As a result, the CERN LHC reach is reduced from 3.2 TeV, for a Z' with standard model decays, to 1.5 TeV, when additional decay channels are included. This model also predicts possibly long-lived colored and electroweak exotics.