PoS - Proceedings of Science
Volume 398 - The European Physical Society Conference on High Energy Physics (EPS-HEP2021) - T03: Dark Matter
NEWS-G: Search for Light Dark Matter with a Spherical Proportional Counter
P. Knights*  on behalf of the NEWS-G collaboration
Full text: pdf
Pre-published on: January 17, 2022
Published on: May 12, 2022
The NEWS-G collaboration is searching for light dark matter candidates using a novel detector
concept, the spherical proportional counter. Access to the mass range from 0.05 − 10 GeV is
enabled by the combination of low energy threshold, light gaseous targets (H, He, Ne), and highly
radio-pure detector construction. Initial NEWS-G results obtained with SEDINE, a 60 cm in
diameter spherical proportional counter operating at LSM (France), excluded for the first time
WIMP-like dark matter candidates down to masses of 0.5 GeV. NEWS-G has now constructed
a 140 cm in diameter, spherical proportional counter using 4N copper with a 500 m electroplated
inner layer. The detector is currently being commissioned in SNOLAB. The detector will use
a read-out technology incorporating resistive materials and multiple anodes, which enable high
gain and high-pressure operation. Future NEWS-G detectors which will be fully electroformed
underground are also being designed.
DOI: https://doi.org/10.22323/1.398.0139
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.