Search for low mass WIMP dark matter with DarkSide-50

Journal Article · Mon Jul 03 00:00:00 EDT 2023 · SciPost Physics Proceedings

DOI:https://doi.org/10.21468/SciPostPhysProc.12.022· OSTI ID:1987986

Kimura, Masato ^[1]

---

1. Nicolaus Copernicus Astronomical Center

DarkSide-50 is a direct dark matter detection experiment at Laboratori Nazionali del Gran Sasso that uses argon as the target material. Exploiting the ionization signal from a dual-phase time projection chamber filled with low-radioactivity argon, it has set the most stringent exclusion limit on WIMPs with a mass of few \mathrm{GeV}/c^2 $\mathrm{G}\mathrm{e}\mathrm{V}/c^2$ . A new analysis has recently been carried out with a larger exposure, profiting from an improved understanding of the detector response and background model. An improvement of about a factor 10 in sensitivity is expected for a WIMP mass of 2 GeV/c ^2 ${}^2$ .

• Sponsoring Organization: USDOE
• Grant/Contract Number: AC02-07CH11359; AC05-76RL01830; FG02-91ER40671
• OSTI ID: 1987986
• Journal Information: SciPost Physics Proceedings, Journal Name: SciPost Physics Proceedings Journal Issue: 12; ISSN 2666-4003
• Publisher: Stichting SciPost
• Country of Publication: Netherlands
• Language: English