NEWS-G, Light dark matter search with a Spherical Proportional Counter, First results and Future prospects

Autor: Ioannis Katsioulas
Přispěvatelé: Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, NEWS-G
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: 53rd Rencontres de Moriond on Electroweak Interactions and Unified Theories
53rd Rencontres de Moriond on Electroweak Interactions and Unified Theories, Mar 2018, La Thuile, Italy. pp.221-226
Scopus-Elsevier
Popis: NEWS-G (New Experiments With Spheres-Gas) is an experiment aiming to shine a light on the dark matter conundrum using a novel gaseous detector, the Spherical Proportional Counter. NEWS-G uses light noble gases, such as hydrogen, helium, and neon, as targets, to search for light dark matter down to the sub-GeV/c${}^{2}$ mass region. The first detector of NEWS-G, is a 60 cm diameter sphere already operated in the Underground Laboratory of Modane, while the full-scale detector, 140 cm in diameter, will be installed in SNOLab at the end of this year. In this work, we present the first NEWS-G results with neon as target, which excludes at 90$\%$ confidence level cross-sections above $4.4\cdot 10{}^{37}$ cm${}^{2}$ for a candidate with a mass 0.5 GeV$/$c${}^{2}$ based on 9.7 kg$\cdot$days of exposure. The status of the project and prospects for the future are also discussed.
Comment: Presented at 53rd Rencontres de Moriond EW 2018
Databáze: OpenAIRE