I Alkhatib, D W P Amaral, T Aralis, T Aramaki, I J Arnquist, I Ataee Langroudy, E Azadbakht, S Banik, D Barker, C Bathurst, D A Bauer, L V S Bezerra, R Bhattacharyya, T Binder, M A Bowles, P L Brink, R Bunker, B Cabrera, R Calkins, R A Cameron, C Cartaro, D G Cerdeño, Y-Y Chang, M Chaudhuri, R Chen, N Chott, J Cooley, H Coombes, J Corbett, P Cushman, F De Brienne, M L di Vacri, M D Diamond, E Fascione, E Figueroa-Feliciano, C W Fink, K Fouts, M Fritts, G Gerbier, R Germond, M Ghaith, S R Golwala, H R Harris, N Herbert, B A Hines, M I Hollister, Z Hong, E W Hoppe, L Hsu, M E Huber, V Iyer, D Jardin, A Jastram, V K S Kashyap, M H Kelsey, A Kubik, N A Kurinsky, R E Lawrence, A Li, B Loer, E Lopez Asamar, P Lukens, D MacDonell, D B MacFarlane, R Mahapatra, V Mandic, N Mast, A J Mayer, H Meyer Zu Theenhausen, É M Michaud, E Michielin, N Mirabolfathi, B Mohanty, J D Morales Mendoza, S Nagorny, J Nelson, H Neog, V Novati, J L Orrell, S M Oser, W A Page, P Pakarha, R Partridge, R Podviianiuk, F Ponce, S Poudel, M Pyle, W Rau, E Reid, R Ren, T Reynolds, A Roberts, A E Robinson, T Saab, B Sadoulet, J Sander, A Sattari, R W Schnee, S Scorza, B Serfass, D J Sincavage, C Stanford, J Street, D Toback, R Underwood, S Verma, A N Villano, B von Krosigk, S L Watkins, L Wills, J S Wilson, M J Wilson, J Winchell, D H Wright, S Yellin, B A Young, T C Yu, E Zhang, H G Zhang, X Zhao, L Zheng, J Camilleri, Yu G Kolomensky, S Zuber
We present limits on spin-independent dark matter-nucleon interactions using a 10.6 g Si athermal phonon detector with a baseline energy resolution of σ_{E}=3.86±0.04(stat)_{-0.00}^{+0.19}(syst) 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 MeV/c^{2}, with a raw exposure of 9.9 g 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...
August 6, 2021: Physical Review Letters