학술논문
A Search for Low-mass Dark Matter via Bremsstrahlung Radiation and the Migdal Effect in SuperCDMS
Document Type
Working Paper
Author
Albakry, M. F.; Alkhatib, I.; Alonso, D.; Amaral, D. W. P.; Aralis, T.; Aramaki, T.; Arnquist, I. J.; Langroudy, I. Ataee; Azadbakht, E.; Banik, S.; Bathurst, C.; Bhattacharyya, R.; Brink, P. L.; Bunker, R.; Cabrera, B.; Calkins, R.; Cameron, R. A.; Cartaro, C.; Cerdeño, D. G.; Chang, Y. -Y.; Chaudhuri, M.; Chen, R.; Chott, N.; Cooley, J.; Coombes, H.; Corbett, J.; Cushman, P.; Das, S.; De Brienne, F.; Rios, M.; Dharani, S.; di Vacri, M. L.; Diamond, M. D.; Elwan, M.; Fascione, E.; Figueroa-Feliciano, E.; Fink, C. W.; Fouts, K.; Fritts, M.; Gerbier, G.; Germond, R.; Ghaith, M.; Golwala, S. R.; Hall, J.; Hassan, N.; Hines, B. A.; Hong, Z.; Hoppe, E. W.; Hsu, L.; Huber, M. E.; Iyer, V.; Jardin, D.; Kashyap, V. K. S.; Kelsey, M. H.; Kubik, A.; Kurinsky, N. A.; Lee, M.; Li, A.; Litke, M.; Liu, J.; Liu, Y.; Loer, B.; Asamar, E. Lopez; Lukens, P.; MacFarlane, D. B.; Mahapatra, R.; Mast, N.; Mayer, A. J.; Theenhausen, H. Meyer zu; Michaud, É.; Michielin, E.; Mirabolfathi, N.; Mohanty, B.; Nelson, J.; Neog, H.; Novati, V.; Orrell, J. L.; Osborne, M. D.; Oser, S. M.; Page, W. A.; Pandey, S.; Partridge, R.; Pedreros, D. S.; Perna, L.; Podviianiuk, R.; Ponce, F.; Poudel, S.; Pradeep, A.; Pyle, M.; Rau, W.; Reid, E.; Ren, R.; Reynolds, T.; Roberts, A.; Robinson, A. E.; Saab, T.; Sadek, D.; Sadoulet, B.; Saikia, I.; Sander, J.; Sattari, A.; Schmidt, B.; Schnee, R. W.; Scorza, S.; Serfass, B.; Poudel, S. S.; Sincavage, D. J.; Sinervo, P.; Street, J.; Sun, H.; Terry, G. D.; Thasrawala, F. K.; Toback, D.; Underwood, R.; Verma, S.; Villano, A. N.; von Krosigk, B.; Watkins, S. L.; Wen, O.; Williams, Z.; Wilson, M. J.; Winchell, J.; Wu, C. -P.; Wykoff, K.; Yellin, S.; Young, B. A.; Yu, T. C.; Zatschler, B.; Zatschler, S.; Zaytsev, A.; Zhang, E.; Zheng, L.; Zuniga, A.
Source
Phys. Rev. D 107, 2023
Subject
Language
Abstract
We present a new analysis of previously published of SuperCDMS data using a profile likelihood framework to search for sub-GeV dark matter (DM) particles through two inelastic scattering channels: bremsstrahlung radiation and the Migdal effect. By considering these possible inelastic scattering channels, experimental sensitivity can be extended to DM masses that are undetectable through the DM-nucleon elastic scattering channel, given the energy threshold of current experiments. We exclude DM masses down to $220~\textrm{MeV}/c^2$ at $2.7 \times 10^{-30}~\textrm{cm}^2$ via the bremsstrahlung channel. The Migdal channel search provides overall considerably more stringent limits and excludes DM masses down to $30~\textrm{MeV}/c^2$ at $5.0 \times 10^{-30}~\textrm{cm}^2$.
Comment: Submitted to PRD
Comment: Submitted to PRD