First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector
- Author(s): Agnese, R
- Aralis, T
- Aramaki, T
- Arnquist, IJ
- Azadbakht, E
- Baker, W
- Banik, S
- Barker, D
- Bauer, DA
- Binder, T
- Bowles, MA
- Brink, PL
- Bunker, R
- Cabrera, B
- Calkins, R
- Cartaro, C
- Cerdeño, DG
- Chang, YY
- Cooley, J
- Cornell, B
- Cushman, P
- Di Stefano, PCF
- Doughty, T
- Fascione, E
- Figueroa-Feliciano, E
- Fink, C
- Fritts, M
- Gerbier, G
- Germond, R
- Ghaith, M
- Golwala, SR
- Harris, HR
- Hong, Z
- Hoppe, EW
- Hsu, L
- Huber, ME
- Iyer, V
- Jardin, D
- Jena, C
- Kelsey, MH
- Kennedy, A
- Kubik, A
- Kurinsky, NA
- Lawrence, RE
- Leyva, JV
- Loer, B
- Lopez Asamar, E
- Lukens, P
- Macdonell, D
- Mahapatra, R
- Mandic, V
- Mast, N
- Miller, EH
- Mirabolfathi, N
- Mohanty, B
- Morales Mendoza, JD
- Nelson, J
- Orrell, JL
- Oser, SM
- Page, WA
- Partridge, R
- Pepin, M
- Phipps, A
- Ponce, F
- Poudel, S
- Pyle, M
- Qiu, H
- Rau, W
- Reisetter, A
- Reynolds, T
- Roberts, A
- Robinson, AE
- Rogers, HE
- Romani, RK
- Saab, T
- Sadoulet, B
- Sander, J
- Scarff, A
- Schnee, RW
- Scorza, S
- Senapati, K
- Serfass, B
- So, J
- Speller, D
- Stanford, C
- Stein, M
- Street, J
- Tanaka, HA
- Toback, D
- Underwood, R
- Villano, AN
- et al.
Published Web Location
https://doi.org/10.1103/PhysRevLett.121.051301Abstract
© 2018 authors. Published by the American Physical Society. We present the first limits on inelastic electron-scattering dark matter and dark photon absorption using a prototype SuperCDMS detector having a charge resolution of 0.1 electron-hole pairs (CDMS HVeV, a 0.93 g CDMS high-voltage device). These electron-recoil limits significantly improve experimental constraints on dark matter particles with masses as low as 1 MeV/c2. We demonstrate a sensitivity to dark photons competitive with other leading approaches but using substantially less exposure (0.49 g d). These results demonstrate the scientific potential of phonon-mediated semiconductor detectors that are sensitive to single electronic excitations.
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