relic dark matter candidates from a surface-operated SuperCDMS single-charge sensitive detector Constraints on low-mass

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 $\bar{sigma}_{e},=,8.7 imes10^{-34}$ cm$^{2}$, $varepsilon,=,3.3 imes10^{-14}$, and $g_{ae},=,1.0 imes10^{-9}$.

Amaral, D. W., Aralis, T., Aramaki, T., Arnquist, I. J., Azadbakht, E., Banik, S., ... Zheng, L.

Amaral, DW||Aralis, T||Aramaki, T||Arnquist, IJ||Azadbakht, E||Banik, S||Barker, D||Bathurst, C||Bauer, DA||Bezerra, LVS||Bhattacharyya, R||Binder, T||Bowles, MA||Brink, PL||Bunker, R||Cabrera, B||Calkins, R||Cameron, RA||Cartaro, C||Cerdeno, DG||Chang, Y-Y||Chen, R||Chott, N||Cooley, J||Coombes, H||Corbett, J||Cushman, P||De Brienne, F||di Vacri, ML||Diamond, MD||Fascione, E||Figueroa-Feliciano, E||Fink, CW||Fouts, K||Fritts, M||Gerbier, G||Germond, R||Ghaith, M||Golwala, SR||Harris, HR||Herbert, N||Hines, BA||Hollister, MI||Hong, Z||Hoppe, EW||Hsu, L||Huber, ME||Iyer, V||Jardin, D||Jastram, A||Kelsey, MH||Kubik, A||Kurinsky, NA||Lawrence, RE||Li, A||Loer, B||Asamar, E Lopez||Lukens, P||MacDonell, D||MacFarlane, DB||Mahapatra, R||Mandic, V||Mast, N||Mayer, AJ||Michaud, EM||Michielin, E||Mirabolfathi, N||Mohanty, B||Mendoza, JD Morales||Nagorny, S||Nelson, J||Neog, H||Novati, V||Orrell, JL||Oser, SM||Page, WA||Pakarha, P||Partridge, R||Podviianiuk, R||Ponce, F||Poudel, S||Pyle, M||Rau, W||Reid, E||Ren, R||Reynolds, T||Roberts, A||Robinson, AE||Rogers, HE||Saab, T||Sadoulet, B||Sander, J||Sattari, A||Schnee, RW||Scorza, S||Serfass, B||Sincavage, DJ||Stanford, C||Stein, M||Street, J||Toback, D||Underwood, R||Verma, S||Villano, AN||von Krosigk, B||Watkins, SL||Wills, L||Wilson, JS||Wilson, MJ||Winchell, J||Wright, DH||Yellin, S||Young, BA||Yu, TC||Zhang, E||Zhang, HG||Zhao, X||Zheng, L

Constraints on low-mass, relic dark matter candidates from a surface-operated SuperCDMS single-charge sensitive detector Academic Article