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. 2021 Aug 6;127(6):061801.
doi: 10.1103/PhysRevLett.127.061801.

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

I Alkhatib  1 D W P Amaral  2 T Aralis  3 T Aramaki  4 I J Arnquist  5 I Ataee Langroudy  6 E Azadbakht  6 S Banik  7 D Barker  8 C Bathurst  9 D A Bauer  10 L V S Bezerra  11   12 R Bhattacharyya  6 T Binder  13 M A Bowles  14 P L Brink  4 R Bunker  5 B Cabrera  15 R Calkins  16 R A Cameron  4 C Cartaro  4 D G Cerdeño  2   17 Y-Y Chang  3 M Chaudhuri  7 R Chen  18 N Chott  14 J Cooley  16 H Coombes  9 J Corbett  19 P Cushman  8 F De Brienne  20 M L di Vacri  5 M D Diamond  1 E Fascione  12   19 E Figueroa-Feliciano  18 C W Fink  21 K Fouts  4 M Fritts  8 G Gerbier  19 R Germond  12   19 M Ghaith  19 S R Golwala  3 H R Harris  6   22 N Herbert  6 B A Hines  23 M I Hollister  10 Z Hong  18 E W Hoppe  5 L Hsu  10 M E Huber  23   24 V Iyer  7 D Jardin  16 A Jastram  6 V K S Kashyap  7 M H Kelsey  6 A Kubik  6 N A Kurinsky  10 R E Lawrence  6 A Li  11   12 B Loer  5 E Lopez Asamar  2 P Lukens  10 D MacDonell  11   12 D B MacFarlane  4 R Mahapatra  6 V Mandic  8 N Mast  8 A J Mayer  12 H Meyer Zu Theenhausen  25 É M Michaud  20 E Michielin  11   12 N Mirabolfathi  6 B Mohanty  7 J D Morales Mendoza  6 S Nagorny  19 J Nelson  8 H Neog  6 V Novati  5 J L Orrell  5 S M Oser  11   12 W A Page  21 P Pakarha  19 R Partridge  4 R Podviianiuk  13 F Ponce  15 S Poudel  13 M Pyle  21 W Rau  12 E Reid  2 R Ren  18 T Reynolds  9 A Roberts  23 A E Robinson  20 T Saab  9 B Sadoulet  21   26 J Sander  13 A Sattari  1 R W Schnee  14 S Scorza  27 B Serfass  21 D J Sincavage  8 C Stanford  15 J Street  14 D Toback  6 R Underwood  12   19 S Verma  6 A N Villano  23 B von Krosigk  25 S L Watkins  21 L Wills  20 J S Wilson  6 M J Wilson  1   25 J Winchell  6 D H Wright  4 S Yellin  15 B A Young  28 T C Yu  4 E Zhang  1 H G Zhang  8 X Zhao  6 L Zheng  6 J Camilleri  21 Yu G Kolomensky  21   26 S Zuber  21 SuperCDMS Collaboration
Affiliations

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

I Alkhatib et al. Phys Rev Lett. .

Abstract

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.

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