6–11 Jul 2025
PALAIS DU PHARO, Marseille, France
Europe/Paris timezone

Long-Lived Particle Searches at a Future Higgs Factory with the ILD experiment

8 Jul 2025, 17:15
15m
PALAIS DU PHARO, Marseille, France

PALAIS DU PHARO, Marseille, France

Parallel T09 - Beyond the Standard Model T09

Speaker

Jan Klamka (University of Warsaw (PL))

Description

Future e$^+$e$^-$ colliders provide a unique opportunity for long-lived particle (LLP) searches. We present a full simulation study of LLP searches using the International Large Detector (ILD), a detector concept for a future Higgs factory, with a gaseous time projection chamber as its main tracking device. Signatures of displaced vertices and kinked tracks are explored. We study challenging final states involving both very soft displaced tracks and boosted, nearly collinear tracks. Backgrounds from beam-induced interactions and other Standard Model processes are considered. We present expected exclusion limits for a model-independent analysis, as well as for Higgs boson decays to LLPs, for a range of LLP lifetimes.

Author

Jan Klamka (University of Warsaw (PL))

Co-author

Prof. Aleksander Filip Zarnecki (University of Warsaw)

Presentation materials

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