Karlsruhe 2024 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 45: Search for Dark Matter 2

T 45.7: Vortrag

Dienstag, 5. März 2024, 17:30–17:45, Geb. 30.35: HSI

Extending light dark matter searches to the neutrino floor with spherical proportional counters — •Ioannis Manthos — University of Hamburg, Hamburg, Germany

The NEWS-G collaboration is searching for light dark matter candidates using spherical proportional counters (SPC). Access to the mass range from 0.05 to 10 GeV is enabled with the combination of low energy threshold, light gaseous targets (H, Ne, C), and highly radio-pure detector construction. To-date NEWS-G has placed world-leading constraints in both spin-independent and spin-dependent DM-nucleon cross sections. The current status of the experiment will be presented, along with the latest advances in spherical proportional counter instrumentation. The conceptual design and physics potential of DarkSPHERE, a 3m in diameter SPC fully electroformed underground in Boulby Underground Laboratory (UK), will be also presented.

Keywords: Dark Matter; Gaseous detectors; Spherical propotional counter