CIEMAT Publications

Abstract

The Deep Underground Neutrino Experiment (DUNE) is a long-baseline neutrino oscillation experiment that aims at addressing key questions in neutrino physics in the next decades. DUNE will have a far detector with four 17-kt liquid-argon (LAr) time-projection chambers (TPCs). The detection of the neutrino burst from a core-collapse supernova (SN) is one of the DUNE primary goals since its sensitivity to the electron-neutrino flavor will be extraordinary. Nevertheless, supernova neutrino interactions with argon are low energy events (~20 MeV) and, thus, triggering on them can be a challenge. In DUNE, the trigger on a supernova burst (SNB) can be done using either the charge or the light signals, albeit a redundant and efficient triggering scheme based on both informations is envisioned. The simulation studies on the light-based SNB trigger efficiency of the proposed DUNE Dual Phase far detector design, which includes a photon detection system formed of 720 photomultipliers, will be presented. Besides, three scenarios of coverage with wavelength-shifter reflective foils installed inside the TPC will be compared.