10–14 Nov 2025
The University of Tokyo
Asia/Tokyo timezone

Improving positron tracking using machine learning in the MEG II experiment

13 Nov 2025, 11:40
20m
Talk Session

Speaker

Atsushi Oya (The university of Tokyo)

Description

In the MEG II experiment, which searches for $\mu\to e\gamma$, a cylindrical drift chamber measures positrons from muon decays. A key challenge arises from the declining positron reconstruction efficiency in the high-pileup environment, primarily due to algorithm limitations. To address this, a machine learning-based noise filtering technique has been developed. This presentation introduces the ML model architecture and its application, followed by a discussion on improvements in tracking performance.

Author

Atsushi Oya (The university of Tokyo)

Presentation materials