Four and two-lepton signals of leptophilic gauge interactions at large colliders

TL;DR

This paper reviews leptophilic gauge interactions, especially a new Z' boson coupled to muon-tau lepton number, analyzing their potential signals at current and future large colliders like the LHC, ILC, and a 100 TeV collider.

Contribution

It provides a detailed analysis of leptophilic gauge interactions, focusing on the Z'_{μ−τ} boson and its observable signals at large colliders, including kinetic mixing effects.

Findings

Potential four-lepton signals at colliders from leptophilic interactions.

Enhanced detection prospects at a 100 TeV collider.

Impact of kinetic mixing on Drell-Yan processes.

Abstract

Many Standard Model extensions can contribute to four-lepton signals at large colliders. We review the particular case of leptophilic interactions eventually observable at the LHC and the ILC, paying special attention to the addition of a new vector boson coupled to muon minus tau lepton number, $Z'_{\mu - \tau}$, and emphasizing the prospects at a very large hadron collider with $\sqrt s =$ 100 TeV. We also discuss in this case the new contribution to two-lepton (Drell-Yan) production when the new leptophilic interaction has a non-vanishing kinetic mixing with the SM.