Directionality of nuclear recoils in a liquid argon time projection chamber
ArXiv 2307.15454 (2023)
Sensitivity projections for a dual-phase argon TPC optimized for light dark matter searches through the ionization channel
Physical Review D American Physical Society (APS) 107:11 (2023) 112006
Measurement of isotopic separation of argon with the prototype of the cryogenic distillation plant Aria for dark matter searches
The European Physical Journal C SpringerOpen 83:5 (2023) 453
Abstract:
The Aria cryogenic distillation plant, located in Sardinia, Italy, is a key component of the DarkSide-20k experimental program for WIMP dark matter searches at the INFN Laboratori Nazionali del Gran Sasso, Italy. Aria is designed to purify the argon, extracted from underground wells in Colorado, USA, and used as the DarkSide-20k target material, to detector-grade quality. In this paper, we report the first measurement of argon isotopic separation by distillation with the 26 m tall Aria prototype. We discuss the measurement of the operating parameters of the column and the observation of the simultaneous separation of the three stable argon isotopes: 36Ar , 38Ar , and 40Ar . We also provide a detailed comparison of the experimental results with commercial process simulation software. This measurement of isotopic separation of argon is a significant achievement for the project, building on the success of the initial demonstration of isotopic separation of nitrogen using the same equipment in 2019Electron transport measurements in liquid xenon with Xenoscope, a large-scale DARWIN demonstrator
ArXiv 2303.13963 (2023)
The Low-Energy and Large-Scale Frontier of Dual-Phase Xenon Time Projection Chambers for Dark Matter Search
University of Zurich (2023)