Light Dark Matter Search with a High-Resolution Athermal Phonon Detector Operated Above Ground

• Published in: arXiv.org 2021-10
• Main Authors: Amaral, D W P, Aralis, T, Aramaki, T, Arnquist, I J, I Ataee Langroudy, Banik, S, Barker, D, Bauer, D A, Bezerra, L V S, Bhattacharyya, R, Binder, T, Bowles, M A, Brink, P L, Cabrera, B, Calkins, R, Cerdeño, D G, Y -Y Chang, Chen, R, Chott, N, Cooley, J, Coombes, H, Corbett, J, di Vacri, M L, Diamond, M D, Fascione, E, Figueroa-Feliciano, E, Fink, C W, Fritts, M, Gerbier, G, Germond, R, Ghaith, M, Golwala, S R, Harris, H R, Hoppe, E W, Hsu, L, Huber, M E, Iyer, V, Jardin, D, Jastram, A, Kashyap, V K S, Kelsey, M H, Kubik, A, Kurinsky, N A, Loer, B, E Lopez Asamar, Lukens, P, MacDonell, D, MacFarlane, D B, Mahapatra, R, Mandic, V, Mast, N, Mayer, A J, H Meyer zu Theenhausen, Michaud, É M, Michielin, E, Mirabolfathi, N, Morales Mendoza, J D, Nagorny, S, Nelson, J, Neog, H, Orrell, J L, Pakarha, P, Partridge, R, Podviianiuk, R, Ponce, F, Pyle, M, Rau, W, Reid, E, Reynolds, T, Roberts, A, Robinson, A E, Saab, T, Sadoulet, B, Sattari, A, Schnee, R W, Scorza, S, Serfass, B, Sincavage, D J, Stanford, C, Street, J, Toback, D, Underwood, R, Verma, S, Villano, A N, Watkins, S L, Wills, L, Wilson, J S, Wilson, M J, Winchell, J, Wright, D H, Yellin, S, Young, B A, Yu, T C, Zhang, H G, Zhao, X, Zheng, L, Collaboration, SuperCDMS, Camilleri, J, Kolomensky, Yu G, Zuber, S
• Format: Article
• Language: English
• Subjects: Dark matter; Energy resolution; Nucleons; Phonons; Scattering cross sections
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.2007.14289

We present limits on spin-independent dark matter-nucleon interactions using a \(10.6\) \(\mathrm{g}\) Si athermal phonon detector with a baseline energy resolution of \(\sigma_E=3.86 \pm 0.04\) \((\mathrm{stat.})^{+0.19}_{-0.00}\) \((\mathrm{syst.})\) \(\mathrm{eV}\). This exclusion analysis sets the most stringent dark matter-nucleon scattering cross-section limits achieved by a cryogenic detector for dark matter particle masses from \(93\) to \(140\) \(\mathrm{MeV}/c^2\), with a raw exposure of \(9.9\) \(\mathrm{g}\cdot\mathrm{d}\) acquired at an above-ground facility. This work illustrates the scientific potential of detectors with athermal phonon sensors with eV-scale energy resolution for future dark matter searches.