Pseudo-Dirac Inelastic Dark Matter in the Leptophobic $U(1{)}_B$ Model: Confronting the LUX-ZEPLIN High-Recoil Event with Collider Searches

Xin-Yu Du, Wenjie Huang, Keping Xie

Interpreting the $248$~keV nuclear-recoil candidate reported by LUX-ZEPLIN (LZ) as an endothermic transition needs two ingredients usually put in by hand: a stable dark state, and…