Ph.D. defense by Haruka Asada was held on Feb. 6th. The title and detail of Ph.D. thesis are below.

• Presentation Title: "Measurement of the top-quark mass using events with J/ψ mesons decaying into a muon pair in pp collisions at √s = 13 TeV with the ATLAS detector"
• Abstract: Available here (Japanese only).
• Associated Paper: arXiv:2511.23091 (Submitted to Journal of High Energy Physics)

Please click here to see photos of the events.