Search for e+e− from monoenergetic dark scalars produced in ICARUS

This talk describes the status of a search for low energy "dark sector" particles produced in kaon decay which subsequently decay to e+e− in the ICARUS detector. If a new scalar boson mixes with the standard model Higgs with a small coupling, these particles could be produced in meson decays and decay to standard model particles. The ICARUS detector is exposed to abundant meson decays from the Neutrinos at the Main Injector (NuMI) Beam. The geometry of the detector and beam coupled with the kinematics of the two-body decay of a low mass scalar produce a unique signal with low background for scalars produced from kaon decay-at-rest (KDAR) in the NuMI absorber.