9–11 Oct 2024
Campus des Cordeliers, Paris, Metro Odeon
Europe/Paris timezone

Machine Learning Techniques to Probe Heavy Neutral Leptons in the electron channel at FCC-ee

9 Oct 2024, 15:55
20m
Amphi Roussy

Amphi Roussy

ORAL WG2 - Physics Analysis Methods Parallel - WG2

Speaker

Pantelis Kontaxakis (pantelis.kontaxakis@unige.ch)

Description

In place of traditional cut-and-count analyses, machine learning methods can provide powerful ways to analyse physics data. In this work, we present techniques involving boosted decision trees (BDT) and deep neural networks (DNN) to increase the existing projected 95% CL limits for the HNL discovery potential at the FCC-ee, specifically as the HNLs decay into the final state of an electron and two jets. Considering HNLs in the mass range of 10-80 GeV, with couplings $10^{-3}$ < $|U_{eN}|^2$ < $10^{-10}$, we report an increased sensitivity of up to two orders of magnitude in the couplings when compared to previous cut-and-count analyses.

Primary authors

Pantelis Kontaxakis (pantelis.kontaxakis@unige.ch) Dr Pantelis Kontaxakis (University of Geneva) Thomas Matthew Critchley

Presentation materials