Speaker
Description
A nearby core-collapse supernova would produce a burst of neutrinos spanning a timescale of O(seconds), carrying information about both stellar collapse dynamics and fundamental neutrino properties. The Short-Baseline Near Detector (SBND) is a 112-ton liquid argon time projection chamber (TPC) operating on the Earth’s surface, 110 meters from the Booster Neutrino Beam (BNB) target at Fermilab. While primarily designed for sterile neutrino searches as the near detector of the SBN program, precision neutrino-argon cross section measurements and searches for beyond Standard Model physics accessible in the BNB, SBND is also capable of detecting potential supernova neutrino interactions through its dual-stream TPC readout. In addition to the standard accelerator beam-triggered readout stream for BNB events, SBND features a parallel stream that continuously records ionization signals from the TPC. We present the design and current status of this continuous readout and its role in extending SBND’s physics reach beyond beam neutrino measurements.