학술논문
Update on the MiniCLEAN Dark Matter Experiment
Document Type
Working Paper
Author
Rielage, K.; Akashi-Ronquest, M.; Bodmer, M.; Bourque, R.; Buck, B.; Butcher, A.; Caldwell, T.; Chen, Y.; Coakley, K.; Flores, E.; Formaggio, J. A.; Gastler, D.; Giuliani, F.; Gold, M.; Grace, E.; Griego, J.; Guerrero, N.; Guiseppe, V.; Henning, R.; Hime, A.; Jaditz, S.; Kachulis, C.; Kearns, E.; Kelsey, J.; Klein, J. R.; Latorre, A.; Lawson, I.; Linden, S.; Lopez, F.; McKinsey, D. N.; MacMullin, S.; Mastbaum, A.; Mei, D. -M.; Monroe, J.; Nikkel, J. A.; Oertel, J.; Gann, G. D. Orebi; Palladino, K.; Perumpilly, G.; Rodriguez, L.; Schnee, R.; Seibert, S.; Walding, J.; Wang, B.; Wang, J.; Zhang, C.
Source
Subject
Language
Abstract
The direct search for dark matter is entering a period of increased sensitivity to the hypothetical Weakly Interacting Massive Particle (WIMP). One such technology that is being examined is a scintillation only noble liquid experiment, MiniCLEAN. MiniCLEAN utilizes over 500 kg of liquid cryogen to detect nuclear recoils from WIMP dark matter and serves as a demonstration for a future detector of order 50 to 100 tonnes. The liquid cryogen is interchangeable between argon and neon to study the A$^{2}$ dependence of the potential signal and examine backgrounds. MiniCLEAN utilizes a unique modular design with spherical geometry to maximize the light yield using cold photomultiplier tubes in a single-phase detector. Pulse shape discrimination techniques are used to separate nuclear recoil signals from electron recoil backgrounds. MiniCLEAN will be spiked with additional $^{39}$Ar to demonstrate the effective reach of the pulse shape discrimination capability. Assembly of the experiment is underway at SNOLAB and an update on the project is given.
Comment: To appear in the Proceedings of the TAUP 2013 Conference (F. Avignone & W. Haxton, editors, Physics Procedia, Elsevier)
Comment: To appear in the Proceedings of the TAUP 2013 Conference (F. Avignone & W. Haxton, editors, Physics Procedia, Elsevier)