Journal
ASTROPARTICLE PHYSICS
Volume 35, Issue 9, Pages 573-590Publisher
ELSEVIER
DOI: 10.1016/j.astropartphys.2012.01.003
Keywords
Dark matter; Direct detection; Liquid noble gas detector; XENON
Funding
- NSF
- DOE
- SNF
- Volkswagen Foundation
- FCT
- STCSM
- LNGS
- Direct For Mathematical & Physical Scien
- Division Of Physics [1104740, 1104733, 0904212] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [0904224, 0904220] Funding Source: National Science Foundation
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The XENON100 dark matter experiment uses liquid xenon (LXe) in a time projection chamber (TPC) to search for xenon nuclear recoils resulting from the scattering of dark matter Weakly Interacting Massive Particles (WIMPS). In this paper we present a detailed description of the detector design and present performance results, as established during the commissioning phase and during the first science runs. The active target of XENON100 contains 62 kg of LXe, surrounded by an LXe veto of 99 kg, both instrumented with photomultiplier tubes (PMTs) operating inside the liquid or in xenon gas. The LXe target and veto are contained in a low-radioactivity stainless steel vessel, embedded in a passive radiation shield and is installed underground at the Laboratori Nazionali del Gran Sasso (LNGS), Italy. The experiment has recently published results from a 100 live-days dark matter search. The ultimate design goal of XENON100 is to achieve a spin-independent WIMP-nucleon scattering cross section sensitivity of sigma = 2 x 10(-45) cm(2) for a 100 GeV/c(2) WIMP. (C) 2012 Elsevier B.V. All rights reserved.
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