8 December 2023
DESY
Europe/Berlin timezone

Model-agnostic search for dijet resonances with anomalous jet substructure with the CMS detector

8 Dec 2023, 15:12
12m
Flash Seminar Room (DESY)

Flash Seminar Room

DESY

Flash Talk Session III

Speaker

Louis Moureaux (UNI/EXP (Uni Hamburg, Institut fur Experimentalphysik))

Description

We present a model-agnostic search for new physics in the dijet final state using five different novel machine-learning techniques. Other than the requirement of a narrow dijet resonance, minimal additional assumptions are placed on the signal hypothesis. Signal regions are obtained utilizing multivariate machine learning methods to select jets with anomalous substructure. A collection of complimentary methodologies -- based on unsupervised, weakly-supervised and semi-supervised paradigms -- are used in order to maximize the sensitivity to unknown New Physics signatures.

Primary authors

Gregor Kasieczka (UNI/EXP (Uni Hamburg, Institut fur Experimentalphysik)) Louis Moureaux (UNI/EXP (Uni Hamburg, Institut fur Experimentalphysik)) Manuel Sommerhalder (UNI/EXP (Uni Hamburg, Institut fur Experimentalphysik)) Tobias Quadfasel (UNI/EXP (Uni Hamburg, Institut fur Experimentalphysik))

Presentation materials