Charged Heavy Lepton Production In Superstring Inspired E6 Models

Abstract

The possibility of studying superstring inspired \mbox{${\mathrm{E}}_6$} phenomenology at high energy hadron colliders is investigated. A very simple low energy rank-5 Supersymmetric (N=1) model is considered, which consists of three scalar-Higgses, $H_{i=1,2,3}^0$, two charged-Higgses, $H^{\pm }$, one pseudo-scalar-Higgses, $P^0$, and an extra vector boson, the $Z^{\prime }$. The production of charged heavy leptons pairs, $L^{+}{L}^{-}$, by gluon-gluon fusion and Drell-Yan mechanisms is discussed. For gluon-gluon fusion an enhancement in the parton level cross-section is expected due to the heavy (s)fermion loops which couple to the gluons. This mechanism is expected to dominate over Drell-Yan for $L^{+}{L}^{-}$ invariant masses above the $Z^{\prime }$ mass.

Comments: 65 pages, LaTeX file, 26 figures, also available at http://www.physics.carleton.ca/~boyce/papers/prd96.ps