t-channel production of heavy charged leptons

الأصل · EN

We study the pair production of heavy charged exotic leptons at e+ e- colliders in the SU(2)ₗ x SU(2)ᵢ x U(1)Y model. This gauge group is a subgroup of the grand unification group E6; SU(2)ᵢ commutes with the electric charge operator, and the three corresponding gauge bosons are electrically neutral. In addition to the standard photon and Z boson contributions, we also include the contributions from extra neutral gauge bosons. A t-channel contribution due to Wᵢ-boson exchange, which is unsuppressed by mixing angles, is quite important. We calculate the left-right and forward-backward asymmetries, and discuss how to differentiate different models.