organised by College 3
Tuesday,28 April 2026 at 14h00
Seminar room 110-111, ILL 50, 1st floor
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Zoom link: https://ill.zoom.us/j/98964195699?pwd=vPhNT17CAeoDUr7QX4PjfyPnWsHuMU.1
Password : SeminarC3
“Directional Detection as a Tool for Rare-Event Searches”
Elizabeth Tilly
University of New Mexico, tillyeg01@unm.edu
Measuring the initial scattering angle of a particle track provides powerful discrimination in rare-event searches and can enhance detector characterization. The Migdal effect--characterized by a nuclear recoil and an electron recoil originating from the same vertex--is an inherently directional signal. In this talk, I will present my work with the Migdal In Galactic Dark mAtter expLoration (MIGDAL) experiment which uses a GEM-based TPC. I will discuss the development of our 3D track reconstruction algorithms and studies exploiting its angular resolution to characterize detector response. I will also discuss measurements of drift properties in negative ion drift gas mixtures, maximizing noble gas components with the aim of improving spatial resolution for MIGDAL Phase II. Together these demonstrate the power and versatility of precise directional track reconstruction for next-generation rare-event searches.
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Hanno Filter (College 3 Secretary)
External visitors may ask for a site access to tellier(at)ill.fr