Safe Jet Vetoes
Silvia Pascoli, Richard Ruiz, Cedric Weiland

TL;DR
This paper introduces a dynamic jet veto method based on the leading lepton's transverse momentum to improve background rejection and sensitivity in heavy neutrino searches at the LHC, reducing uncertainties and increasing detection prospects.
Contribution
The paper proposes a novel dynamical jet veto approach centered on the leading lepton's $p_T$, enhancing signal efficiency and background rejection in heavy neutrino searches at hadron colliders.
Findings
Perturbative uncertainties are greatly reduced with the dynamical veto.
Signal efficiency exceeds 95% and is stable across neutrino masses.
Enhanced sensitivity to active-sterile neutrino mixing, surpassing current limits.
Abstract
Central jet vetoes are powerful tools for reducing QCD background in measurements and searches for electroweak and colorless, new physics processes in hadron collisions. In this letter, we report the key findings of a new philosophy to designing searches for such phenomena at hadron colliders, one designed and centered around a dynamical jet veto instead a static veto applied independently of other selection criteria. Specifically, we investigate the theoretical and phenomenological consequences of setting the jet veto scale to the transverse momentum of the leading charged lepton in multi-lepton processes on an event-by-event basis. We consider the case of a TeV-scale heavy neutrino decaying to the trilepton final state and find the following: (i) Perturbative uncertainties associated with the veto greatly reduce due to tying the veto scale to the hard process scale.…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
