Direct WIMP Detection Using Scintillation Time Discrimination in Liquid Argon
| dc.creator | Boulay, M. G. | |
| dc.creator | Hime, A. | |
| dc.date | 2004-11-15 | |
| dc.date.accessioned | 2026-07-07T02:15:48Z | |
| dc.date.available | 2026-07-07T02:15:48Z | |
| dc.description | Discrimination between electron and nuclear recoil events in a liquid argon scintillation detector has been demonstrated with simulations by using the differences in the scintillation photon time distribution between these classes of events. A discrimination power greater than 10^{8} is predicted for a liquid argon experiment with a 10 keV threshold, which would mitigate electron and gamma-ray backgrounds, including beta decays of 39-Ar and 42-Ar in atmospheric argon. A dark matter search using a ~2 kg argon target viewed by immersed photomultiplier tubes would allow a sensitivity to a spin-independent WIMP-nucleon cross-section of ~10^{-43} cm^{2} for a 100 GeV WIMP, assuming a one-year exposure. This technique could be used to scale the target mass to the tonne scale, allowing a sensitivity of ~10^{-46} cm^{2}. | |
| dc.description | 5 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0411358 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0411358 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/8548 | |
| dc.subject | Astrophysics | |
| dc.title | Direct WIMP Detection Using Scintillation Time Discrimination in Liquid Argon | |
| dc.type | text |