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t-channel production of heavy charged leptons

Shuquan Nie·Marc Sher
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Abstract

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 W_I-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.

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Shuquan Nie, Marc Sher. 2000-12-11. t-channel production of heavy charged leptons. https://doi.org/10.1103/physrevd.63.053001

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