Search for a Hidden Sector Scalar from Kaon Decay in the Dimuon Final State at ICARUS

Author(s): F. Abd Alrahman et al. (ICARUS Collaboration) We present a search for long-lived particles (LLPs), produced in kaon decays, that decay to two muons inside the ICARUS neutrino detector. This channel would be a signal of hidden sector models that can address outstanding issues in particle physics such as the strong CP problem and the microphysica… [Phys. Rev. Lett. 134, 151801] Published Mon Apr 14, 2025