Astroparticle physics in DUNE with the X-Arapuca detectors

30 Aug 2021, 17:10
Talk in parallel session Neutrino physics and astrophysics Discussion Panel Neutrinos 2


Claudia Brizzolari


DUNE is a long-baseline accelerator experiment currently in construction at Fermilab and SURF (South Dakota).
The science objectives of DUNE include a comprehensive investigation of long-baseline neutrino oscillations and, in particular, the study of CP violation in the neutrino sector and the identification of the neutrino mass hierarchy, along with high-sensitivity rare event searches like the observation of supernova neutrino bursts and the search for proton decay.
The Far Detector consists of four Liquid Argon TPCs located deep underground,
which represents a unique observatory for astroparticle physics. The DUNE physics reach in such a field is remarkably enhanced by the DUNE Photon Detection System (PDS) that is based on a novel light trapping technology (X-Arapuca).
In this talk, we will present the latest results obtained by the PDS Consortium in terms of light efficiency and cryo-reliability of the X-Arapuca, together with the most important technological achievements to cover the large surface of the DUNE anodes. We will also discuss the role of the PDS for the study of supernova neutrino bursts and the search for proton decay. Finally, we will present the latest development of this technique, based on a new class of photon downshifting polymeric material and the impact on the physics reach of DUNE.

Reference to paper (DOI or arXiv) arXiv:2002.03005

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