First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector

作者：R. Agnese, T. Aralis, T. Aramaki, I. J. Arnquist, E. Azadbakht, William K. Baker, S. Banik, D. Barker, D. A. Bauer, Tobias Binder, M. A. Bowles, P. L. Brink, R. Bunker, Blas Cabrera, R. Calkins, C. Cartaro, D. G. Cerdeño, Y.-Y. Chang, J. Cooley, Bruce A. Cornell, P. Cushman, P. C. F. Di Stefano, Timothy A. Doughty, E. Fascione, Enectali Figueroa-Feliciano, C. W. Fink, M. Fritts, G. Gerbier, R. Germond, M. Ghaith, S. R. Golwala, Harlan Rusty Harris, Z. Hong, E. W. Hoppe, L. Hsu, M. E. Huber, V. Iyer, D. Jardin, C. Jena, M.H. Kelsey, A. Kennedy, A. Kubik, Noah Kurinsky, R. E. Lawrence, J. V. Leyva, B. Loer, E. Lopez Asamar, P. Lukens, Danika Marina Macdonell, Rupak Mahapatra, V. Mandic, N. Mast, Eric Haynes Miller, N. Mirabolfathi, Bedangadas Mohanty, J. D. Morales Mendoza, J. K. Nelson, John L. Orrell, S. M. Oser, W. A. Page, Richard Partridge, M. Pepin, A. Phipps, F. Ponce, S. S. Poudel, M. Pyle, H. Qiu, W. Rau, A. Reisetter, T. Reynolds, Amy Roberts, A. E. Robinson, H. E. Rogers, R. K. Romani, T. Saab, B. Sadoulet, Jürgen W. Sander, A. Scarff, Richard W. Schnee, S. Scorza, Kartik Senapati, B. Serfass, J. H. So, Danielle Speller, C. Stanford, Matthew S. Stein, John Street, H. A. Tanaka, D. Toback, R. Underwood, A. N. Villano, B. von Krosigk, S. L. Watkins, J. S. Wilson, M. J. Wilson, J. Winchell, D. H. Wright, S. Yellin, Betty Young, X. Zhang, Xinying Zhao · 发表于：Physical Review Letters · 年份：2018 · DOI：10.1103/physrevlett.121.051301 · 被引用次数：310 · 研究领域：Dark Matter and Cosmic Phenomena、Particle Detector Development and Performance、CCD and CMOS Imaging Sensors

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/c^{2}. 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.