PoS - Proceedings of Science
Volume 398 - The European Physical Society Conference on High Energy Physics (EPS-HEP2021) - T03: Dark Matter
DarkSide-20k and the Future Liquid Argon Dark Matter Program
B. Bottino*  on behalf of the DarkSide Collaboration
Full text: pdf
Pre-published on: December 23, 2021
Published on: May 12, 2022
DarkSide ran since mid 2015 a 50-kg-active-mass dual-phase Liquid Argon Time Projection Chamber (TPC), filled with low-radioactivity argon from an underground source and produced world class results for both the low mass ( M$_{WIMP}$ below 20 GeV/c$^2$) and high mass (M$_{WIMP}$ above 100 GeV/c$^2$) direct detection search for dark matter.
The next stage of the DarkSide program will be a new generation experiment, called \textit{DarkSide-20k}, involving a global collaboration formed by members of the main current argon-based experiments. \textit{DarkSide-20k}, is designed as a 20-tonne fiducial mass dual-phase Liquid Argon TPC with SiPM-based cryogenic photosensors, and is expected to be free of any instrumental background for an exposure of >100 t $\cdot$ yr. Like its predecessor, \textit{DarkSide-20k} will be housed at the INFN Gran Sasso underground laboratory (LNGS), and it is expected to attain a WIMP-nucleon cross section 90\% C.L. exclusion sensitivity of 7.4×10$^{-48}$cm$^2$ for a WIMP mass of 1 TeV/c$^2$ in a 200 t $\cdot$ yr run. \textit{DarkSide-20k} will be installed inside a membrane cryostat containing more than 700 t of liquid argon, and be surrounded by an active neutron veto based on a Gd-loaded acrylic shell. The article will give the latest updates of the ongoing R\&D and prototype tests validating the initial design.
A subsequent objective, towards the end of the next decade, will be the construction of the ultimate detector with a 300 t fiducial mass, Argo, to push the sensitivity to the neutrino floor region for high-mass WIMPs.
DOI: https://doi.org/10.22323/1.398.0169
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.