High-Energy Nuclear Recoils from Boosted Dark Matter for the LZ 248-keV Event: Beyond the Halo-Dependent High-Velocity Tail

Haider Alhazmi, Doojin Kim, Kyoungchul Kong +2

The LUX-ZEPLIN (LZ) Collaboration has reported a nuclear-recoil candidate at $E_R=248\pm 23_{\mathrm{stat}}\pm 23_{\mathrm{sys}}$ keV, with a maximum local significance of $3.4\sigma$ and a global…