Leptoquarks in SUSY Unified Models and the HERA Events
arXiv:hep-ph/9704336 · doi:10.1016/S0370-2693(97)00683-7
Abstract
Motivated by the recent HERA events which are consistent with a possible leptoquark interpretation, we discuss the prospects for including additional light colour triplets and anti-triplets in the spectrum of supersymmetric unified theories. We focus on a particular string-inspired Pati-Salam model, and propose a simple mechanism by which a light colour triplet of charge -1/3 plus anti-triplet of charge 1/3, may have a mass of order 200 GeV, with one of the new states having leptoquark couplings and with proton decay suppressed. We also discuss possible scenarios for gauge unification in such a model.
14 pages, latex, 2 eps figs included. Note change of title in this shortened version to appear in Phys.Lett.B