XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects

Event-Based Jet Vetoes: A new prospect for multi-lepton searches at the LHC

14 Apr 2021, 08:00

15m

Virtual (Stony Brook, NY)

Contributed Talk Electroweak Physics and Beyond the Standard Model Electroweak Physics and Beyond the Standard Model

Speaker

Richard Ruiz (Institute of Nuclear Physics PAN)

Description

High-$p_T$, multi-lepton events remain one of the most sensitive probes of new physics at the LHC. Despite this, multi-weak boson and top quark-associated production channels remain leading Standard Model backgrounds for these signatures. We present a new class of jet vetoes, one that is defined on an event-by-event basis, that precisely targets these so-called irreducible backgrounds and can significantly improve signal-over-background significance. The veto exhibits somewhat desirable theoretical properties and suggests a lesser need for high order jet veto resummation. Applications to searches for lepton number and lepton flavor violation at $\sqrt{s}=14$ and 100 TeV are shown.

Presentation materials

rruiz_DIS21_EvtBasedJetVeto.pdf

Youtube Link