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MicroBooNE is a neutrino experiment that utilizes a liquid argon time projection chamber (LArTPC) located on-axis in the Booster Neutrino Beam (BNB) at Fermilab. One of the experiments main goals is to search for excess low-energy electromagnetic-like events as seen by the MiniBooNE experiment, located just downstream of MicroBooNE in the BNB. As MicroBooNE nears the completion of its first single-electron-like and single-photon-like searches, these proceedings present the status of MicroBooNEs low-energy excess search as of early summer 2020. In addition to presenting an overview of the approach to the analysis, we showcase results from $pi^0$ calibrations and e/$gamma$ separation, and sample results from sidebands aimed at validating the analysis progress outside the low-energy signal region.
The search for dark matter, the missing mass of the Universe, is one of the most active fields of study within particle physics. The XENON1T experiment recently observed a 3.5$sigma$ excess potentially consistent with dark matter, or with solar axion
Using a cleanly tagged data sample of $ u_mu$ charged current events, it is demonstrated that the rate at which such events are mis-identified as $ u_e$s is accurately simulated in the MiniBooNE $ u_mu to u_e$ analysis. Such mis-identification, whic
We present the results of a new analysis of the data of the MiniBooNE experiment taking into account the additional background of photons from $Delta^{+/0}$ decay proposed in arXiv:1909.08571 and additional contributions due to coherent photon emissi
We have started the development of a detector system, sensitive to single photons in the eV energy range, to be suitably coupled to one of the CAST magnet ports. This system should open to CAST a window on possible detection of low energy Axion Like
We present upper limits on the production of heavy neutral leptons (HNLs) decaying to $mu pi$ pairs using data collected with the MicroBooNE liquid-argon time projection chamber (TPC) operating at Fermilab. This search is the first of its kind perfor