IN2P3/IRFU Machine Learning workshop 2025

Session

Graph and Geometric Deep Learning for Event and Particle Analysis

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28 nov. 2025, 11:20

G. Iltis (LPC) and Seminar room maison d'hôtes (GANIL) (LPC Caen and GANIL)

154. B-hadron identification in b-jets using novel deep learning technique in pp and PbPb collisions in CMS

Shamik Ghosh ({CNRS}UMR7638)

28/11/2025 11:20

Object detection and reconstruction

Advancements in geometric deep learning offer powerful tools to study the internal structure of jets initiated by heavy quarks, particularly in the context of dead-cone effect and jet quenching. The kinematics of b-hadron decays present a challenge for substructure measurements with inclusive b-jets, which are essential for quantum chromodynamics (QCD) studies. We propose an approach using...

161. End-to-End reconstruction using machine learning to search for exotic decays of Higgs

Shamik Ghosh ({CNRS}UMR7638)

28/11/2025 11:30

Analysis : event classification, statistical analysis and inference, anomaly detection

Exploring exotic Higgs boson decays often requires access to challenging regions of phase space where standard reconstruction techniques become limited, making potential signals effectively invisible. In particular, when decay products become highly collimated and overlap in the calorimeter, conventional algorithms lose sensitivity. We present a novel machine learning based technique for...

149. Advanced stereoscopy applied to CTAO

Hana ALI MESSAOUD

28/11/2025 11:40

Analysis : event classification, statistical analysis and inference, anomaly detection

The Cherenkov Telescope Array Observatory (CTAO) is an international observatory currently under construction, which will consist of two sites (one in the Northern Hemisphere and one in the Southern Hemisphere). It will eventually be the largest and most sensitive ground-based gamma-ray observatory. In the meantime, a small subarray composed of four Large-Sized Telescopes (LSTs) at the...