학술논문
Constraints on low-mass, relic dark matter candidates from a surface-operated SuperCDMS single-charge sensitive detector
Document Type
Working Paper
Author
SuperCDMS Collaboration; Amaral, D. W.; Aralis, T.; Aramaki, T.; Arnquist, I. J.; Azadbakht, E.; Banik, S.; Barker, D.; Bathurst, C.; Bauer, D. A.; Bezerra, L. V. S.; Bhattacharyya, R.; Binder, T.; Bowles, M. A.; Brink, P. L.; Bunker, R.; Cabrera, B.; Calkins, R.; Cameron, R. A.; Cartaro, C.; Cerdeño, D. G.; Chang, Y. -Y.; Chen, R.; Chott, N.; Cooley, J.; Coombes, H.; Corbett, J.; Cushman, P.; De Brienne, F.; di Vacri, M. L.; Diamond, M. D.; Fascione, E.; Figueroa-Feliciano, E.; Fink, C. W.; Fouts, K.; Fritts, M.; Gerbier, G.; Germond, R.; Ghaith, M.; Golwala, S. R.; Harris, H. R.; Herbert, N.; Hines, B. A.; Hollister, M. I.; Hong, Z.; Hoppe, E. W.; Hsu, L.; Huber, M. E.; Iyer, V.; Jardin, D.; Jastram, A.; Kelsey, M. H.; Kubik, A.; Kurinsky, N. A.; Lawrence, R. E.; Li, A.; Loer, B.; Asamar, E. Lopez; Lukens, P.; MacDonell, D.; MacFarlane, D. B.; Mahapatra, R.; Mandic, V.; Mast, N.; Mayer, A. J.; Michaud, É. M.; Michielin, E.; Mirabolfathi, N.; Mohanty, B.; Mendoza, J. D. Morales; Nagorny, S.; Nelson, J.; Neog, H.; Novati, V.; Orrell, J. L.; Oser, S. M.; Page, W. A.; Pakarha, P.; Partridge, R.; Podviianiuk, R.; Ponce, F.; Poudel, S.; Pyle, M.; Rau, W.; Reid, E.; Ren, R.; Reynolds, T.; Roberts, A.; Robinson, A. E.; Rogers, H. E.; Saab, T.; Sadoulet, B.; Sander, J.; Sattari, A.; Schnee, R. W.; Scorza, S.; Serfass, B.; Sincavage, D. J.; Stanford, C.; Stein, M.; Street, J.; Toback, D.; Underwood, R.; Verma, S.; Villano, A. N.; von Krosigk, B.; Watkins, S. L.; Wills, L.; Wilson, J. S.; Wilson, M. J.; Winchell, J.; Wright, D. H.; Yellin, S.; Young, B. A.; Yu, T. C.; Zhang, E.; Zhang, H. G.; Zhao, X.; Zheng, L.
Source
Phys. Rev. D 102, 091101 (2020)
Subject
Language
Abstract
This article presents an analysis and the resulting limits on light dark matter inelastically scattering off of electrons, and on dark photon and axion-like particle absorption, using a second-generation SuperCDMS high-voltage eV-resolution detector. The 0.93 gram 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 gram-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 $\bar{\sigma}_{e}$ is constrained for dark matter masses from 0.5--$10^{4} $MeV$/c^{2}$; in the mass range from 1.2--50 eV$/c^{2}$ the dark photon kinetic mixing parameter $\varepsilon$ and the axioelectric coupling constant $g_{ae}$ are constrained. The minimum 90% confidence-level upper limits within the above mentioned mass ranges are $\bar{\sigma}_{e}\,=\,8.7\times10^{-34}$ cm$^{2}$, $\varepsilon\,=\,3.3\times10^{-14}$, and $g_{ae}\,=\,1.0\times10^{-9}$.
Comment: 5 pages + title and references, 3 figures and 1 table
Comment: 5 pages + title and references, 3 figures and 1 table