Speaker
Description
The Short-Baseline Near Detector (SBND) of the Short-Baseline Neutrino (SBN) Program is a liquid argon time-projection-chamber equipped with 11,264 charge-readout wires, cryogenic digitization of wire signals, and 120 photomultiplier tubes. These tools provide excellent signal-to-noise ratios and best-in-class light collection efficiency, lowering effective analysis thresholds to the hundreds-of-keV range. Such low thresholds facilitate the study of low energy isolated protons, neutron scatter products, muDAR neutrino signals and radioactive decay products. This poster will highlight implementation and initial results for charge-based reconstruction of isolated low energy depositions, or blips. Results will be provided from initial studies of common radioactive decays including $^{39}$Ar, $^{208}$Tl, and $^{40}$K. The feasibility of combined charge+light based calorimetry for blip interactions will also be discussed.