Vectorlike $\tau$ production through leptoquarks

TL;DR

This paper explores a new physics scenario where leptoquarks and vectorlike leptons coexist, leading to enhanced production signals at the LHC, and evaluates the discovery prospects in future collider runs.

Contribution

It introduces a novel framework with simultaneous leptoquarks and vectorlike leptons, analyzing their combined effects on collider signatures and detection prospects.

Findings

Enhanced VLL production via LQ-mediated processes at the LHC.

Potential for observing mono- and di-lepton signatures at HL-LHC.

Discussion of additional relevant channels for detection.

Abstract

Numerous phenomenological studies and collider searches have probed for the existence of new physics by looking for signatures of leptoquarks (LQs) or vectorlike leptons (VLLs). We consider a new possibility that can arise in theories with enhanced gauge symmetries: both particles are simultaneously present, and LQ-mediated processes enhance the VLL production at the LHC. We study the effect of non-standard interactions of LQs that contribute to novel production and decay signatures. We obtain the HL-LHC prospects of this framework in the mono-and di-lepton final states, and discuss other potentially relevant channels.