Amaral, D. W. and Aralis, T. and Aramaki, T. and Arnquist, I. J. and Azadbakht, E. and Banik, S. and Barker, D. and Bathurst, C. and Bauer, D. A. and Bezerra, L. V. S. and Bhattacharyya, R. and Binder, T. and Bowles, M. A. and Brink, P. L. and Bunker, R. and Cabrera, B. and Calkins, R. and Cameron, R. A. and Cartaro, C. and Cerdeño, D. G. and Chang, Y.-Y. and Chen, R. and Chott, N. and Cooley, J. and Coombes, H. and Corbett, J. and Cushman, P. and De Brienne, F. and di Vacri, M. L. and Diamond, M. D. and Fascione, E. and Figueroa-Feliciano, E. and Fink, C. W. and Fouts, K. and Fritts, M. and Gerbier, G. and Germond, R. and Ghaith, M. and Golwala, S. R. and Harris, H. R. and Herbert, N. and Hines, B. A. and Hollister, M. I. and Hong, Z. and Hoppe, E. W. and Hsu, L. and Huber, M. E. and Iyer, V. and Jardin, D. and Jastram, A. and Kelsey, M. H. and Kubik, A. and Kurinsky, N. A. and Lawrence, R. E. and Li, A. and Loer, B. and Lopez Asamar, E. and Lukens, P. and MacDonell, D. and MacFarlane, D. B. and Mahapatra, R. and Mandic, V. and Mast, N. and Mayer, A. J. and Michaud, É. M. and Michielin, E. and Mirabolfathi, N. and Mohanty, B. and Morales Mendoza, J. D. and Nagorny, S. and Nelson, J. and Neog, H. and Novati, V. and Orrell, J. L. and Oser, S. M. and Page, W. A. and Pakarha, P. and Partridge, R. and Podviianiuk, R. and Ponce, F. and Poudel, S. and Pyle, M. and Rau, W. and Reid, E. and Ren, R. and Reynolds, T. and Roberts, A. and Robinson, A. E. and Rogers, H. E. and Saab, T. and Sadoulet, B. and Sander, J. and Sattari, A. and Schnee, R. W. and Scorza, S. and Serfass, B. and Sincavage, D. J. and Stanford, C. and Stein, M. and Street, J. and Toback, D. and Underwood, R. and Verma, S. and Villano, A. N. and von Krosigk, B. and Watkins, S. L. and Wills, L. and Wilson, J. S. and Wilson, M. J. and Winchell, J. and Wright, D. H. and Yellin, S. and Young, B. A. and Yu, T. C. and Zhang, E. and Zhang, H. G. and Zhao, X. and Zheng, L. (2020) Constraints on low-mass, relic dark matter candidates from a surface-operated SuperCDMS single-charge sensitive detector. Physical Review D, 102 (9). Art. No. 091101. ISSN 2470-0010. doi:10.1103/physrevd.102.091101. https://resolver.caltech.edu/CaltechAUTHORS:20201116-104159908
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Abstract
This article presents an analysis and the resulting limits on light dark matter inelastically scattering off of electrons, and on dark photon and axionlike particle absorption, using a second-generation SuperCDMS high-voltage eV-resolution detector. The 0.93 g Si detector achieved a 3 eV phonon energy resolution; for a detector bias of 100 V, this corresponds to a charge resolution of 3% of a single electron-hole pair. The energy spectrum is reported from a blind analysis with 1.2 g-days of exposure acquired in an above-ground laboratory. With charge carrier trapping and impact ionization effects incorporated into the dark matter signal models, the dark matter-electron cross section σ_e is constrained for dark matter masses from 0.5 to 10⁴ MeV/c²; in the mass range from 1.2 to 50 eV/c² the dark photon kinetic mixing parameter ϵ and the axioelectric coupling constant gae are constrained. The minimum 90% confidence-level upper limits within the above-mentioned mass ranges are σ_e = 8.7×10⁻³⁴ cm², ϵ = 3.3×10⁻¹⁴, and g_(ae) = 1.0×10⁻⁹.
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| Additional Information: | © 2020 Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. Received 29 May 2020; accepted 14 October 2020; published 13 November 2020. We would like to thank Rouven Essig and Tien-Tien Yu for helpful discussions and assistance with using QEdark [57] to generate the dark matter model used in this analysis. We thank Noemie Bastidon for her work in the preliminary design of our optical fiber setup and wire bonding. We gratefully acknowledge support from the U.S. Department of Energy (DOE) Office of High Energy Physics and from the National Science Foundation (NSF). This work was supported in part under NSF Grants No. 1809730 and No. 1707704, as well as by the Arthur B. McDonald Canadian Astroparticle Physics Research Institute, NSERC Canada, the Canada Excellence Research Chair Fund, Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Project No. 420484612 and under Germany’s Excellence Strategy—EXC 2121 “Quantum Universe”—390833306, the Department of Atomic Energy Government of India (DAE) under the project—Research in basic sciences (Dark matter), and the Department of Science and Technology (DST, India). Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-37407CH11359 with the US Department of Energy. Pacific Northwest National Laboratory is operated by Battelle Memorial Institute for the DOE under Contract No. DE-AC05-76RL01830. SLAC is operated under Contract No. DEAC02-76SF00515 with the U.S. Department of Energy. | ||||||||||||||||||||||||||||||
| Group: | Astronomy Department | ||||||||||||||||||||||||||||||
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| Issue or Number: | 9 | ||||||||||||||||||||||||||||||
| DOI: | 10.1103/physrevd.102.091101 | ||||||||||||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20201116-104159908 | ||||||||||||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20201116-104159908 | ||||||||||||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||||||||||
| ID Code: | 106678 | ||||||||||||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||||||||||||
| Deposited By: | Tony Diaz | ||||||||||||||||||||||||||||||
| Deposited On: | 16 Nov 2020 22:43 | ||||||||||||||||||||||||||||||
| Last Modified: | 16 Nov 2021 18:55 |
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