Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5486775 | Astroparticle Physics | 2016 | 23 Pages |
Abstract
We developed a general mathematical framework to describe pulse-shape-discrimination parameter distributions and used it to build an analytical model of the distributions observed in DEAP-1. Using this model, we project a misidentification fraction of approximately 10â10 for an electron-equivalent energy threshold of 15Â keVee for a detector with 8 PE/keVee light yield. This reduction enables a search for spin-independent scattering of WIMPs from 1000Â kg of liquid argon with a WIMP-nucleon cross-section sensitivity of 10â46Â cm2, assuming negligible contribution from nuclear recoil backgrounds.
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Authors
P.-A. Amaudruz, M. Batygov, B. Beltran, J. Bonatt, K. Boudjemline, M.G. Boulay, B. Broerman, J.F. Bueno, A. Butcher, B. Cai, T. Caldwell, M. Chen, R. Chouinard, B.T. Cleveland, D. Cranshaw, K. Dering, F. Duncan, N. Fatemighomi, M. Ward,