Key points are not available for this paper at this time.
If the particle content of a supersymmetric SU (3) (2) (2) (1) gauge model is extended to include new quarks and leptons as given by the 27 representation of E₆, an unconventional left-right assignment is possible, resulting in a number of desirable features, one of which is a simpler Higgs-boson structure. Also, a conserved multiplicative quantum number can be defined as a generalization of the usual R parity in most models of supersymmetry. This prevents W₋-Wₑ mixing and makes possible a massless Dirac neutrino whose right-handed component is effectively inert. From neutral-current constraints based on present experimental data, lower bounds of about 180 and 210 GeV are obtained for the second W and Z bosons of this model, respectively.
Babu et al. (Sat,) studied this question.