We present a search for dark matter particles with sub-GeV=c2 masses whose interactions have final state electrons using the DarkSide-50 experiment’s ð12 306 184Þ kg d low-radioactivity liquid argon exposure. By analyzing the ionization signals, we exclude new parameter space for the dark matter-electron cross section σ̄ e , the axioelectric coupling constant gAe , and the dark photon kinetic mixing parameter κ. We also set the first dark matter direct-detection constraints on the mixing angle jU e4 j2 for keV=c2 sterile neutrinos.
Agnes, P., Albuquerque, I. . ., Alexander, T., Alton, A. ., Ave, M., Back, H. ., et al. (2023). Search for Dark Matter Particle Interactions with Electron Final States with DarkSide-50. PHYSICAL REVIEW LETTERS, 130(10), 101002 [10.1103/PhysRevLett.130.101002].
Search for Dark Matter Particle Interactions with Electron Final States with DarkSide-50
Bussino, S.Membro del Collaboration Group
;Mari, S. M.Membro del Collaboration Group
;Sanfilippo, S.Membro del Collaboration Group
;
2023-01-01
Abstract
We present a search for dark matter particles with sub-GeV=c2 masses whose interactions have final state electrons using the DarkSide-50 experiment’s ð12 306 184Þ kg d low-radioactivity liquid argon exposure. By analyzing the ionization signals, we exclude new parameter space for the dark matter-electron cross section σ̄ e , the axioelectric coupling constant gAe , and the dark photon kinetic mixing parameter κ. We also set the first dark matter direct-detection constraints on the mixing angle jU e4 j2 for keV=c2 sterile neutrinos.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
