Orateur
Description
The New Experiments With Sphere-Gas (NEWS-G) uses spherical proportional counters filled with light noble gas to directly detect light dark matter particles. The detector consists of a large sphere of 135 cm diameter, equipped with a high-voltage multi-anode sensor, “ACHINOS”, developed to ensure a sufficiently strong electric field at large radii while maintaining the capacity to achieve high gain. Before its installation at the SNOLAB underground laboratory, the detector was commissioned with a hydrogen-rich target at the Laboratoire Souterrain de Modane and achieved world-leading dark matter sensitivity for masses between 0.17 and 1.2 GeV/c^2. This talk will describe the experiment, present the latest results and discuss the future plans of NEWS-G.
