20–31 Oct 2025
University of Tokyo
Asia/Tokyo timezone

Transformer-based Approaches to Particle Identification in the SuperFGD Detector.

27 Oct 2025, 15:15
15m
Koshiba Hall (University of Tokyo)

Koshiba Hall

University of Tokyo

7-3 Hongo, Bunkyo City, Tokyo 113-0033
Short talk (15min. + 5 min. Q/A) Experiments - T2K

Speaker

Kiseeva Viktoriia

Description

Machine learning methods were explored for particle identification (PID) in the SuperFGD detector, which part of the recent upgrade to the T2K near detector. Baseline models were established to provide benchmarks, followed by a classical neural network where feature engineering was applied to improve separation. A transformer-based architecture was then developed, with data augmentation, class-weighting, and pre-trained models tested to address class imbalance and improve generalization. Ongoing studies aim to clarify the comparative performance of these approaches and their potential role in future PID pipelines.

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