Recents results on sterile neutrino searches in MicroBooNE

The MicroBooNE experiment utilizes a liquid argon time projection chamber to detect neutrinos emanating from Fermilab's Booster Neutrino Beam (BNB) and the Neutrinos at the Main Injector (NuMI) beam. MicroBooNE is investigating the observed low-energy excess (LEE) of electron neutrino and antineutrino charged current quasielastic events reported by the MiniBooNE experiment. The MiniBooNE anomaly has garnered significant attention over the past 20 years including previous MicroBooNE investigations into both anomalous electron and photon excesses, but its origin remains unclear. This presentation will report on three different searches that try to explain the MiniBooNE anomaly: an electron neutrino excess utilizing the full 5-year dataset, three new and improved searches for single photons (NC Delta radiative single photon production, first search for neutrino-induced coherent single photon production and an inclusive search for single photons), and the first direct test of dark sector models in which dark neutrinos decay into missing energy and visible e⁺e⁻ pairs. Additionally, we present the status of searches for short baseline neutrino oscillations within the framework of a 3+1 eV-scale sterile neutrino model. This work combines data from both the BNB and NuMI beams leveraging their substantially different ratios to mitigate degeneracy resulting from the cancellation of appearance and disappearance allowing the enhancement the experiment's sensitivity.