Erlangen 2026 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
T: Fachverband Teilchenphysik
T 83: Methods in Astroparticle Physics IV
T 83.7: Vortrag
Donnerstag, 19. März 2026, 17:45–18:00, KS 00.004
Quantitative Study of Cherenkov-Scintillation Separation for Background Suppression in Large Scale Neutrino Detectors — •Meishu Lu1, Manuel Böhles2, Lothar Oberauer1, Michael Wurm2, and Stefan Schönert1 — 1School of Natural Sciences, Technical University of Munich, 85748 Garching, Germany — 2Institute for Physics, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
The first physics results from the Jiangmen Underground Neutrino Observatory (JUNO) demonstrate the potential of next-generation large liquid-scintillator detectors. Beyond precision oscillation measurements, improved event reconstruction and background suppression are required for rare-event searches such as the diffuse supernova neutrino background (DSNB) and neutrinoless double-beta decay (0νββ). Separation of Cherenkov and scintillation light provides additional timing and topological information and has been firstly demonstrated by the Borexino collaboration. Building on previous tabletop studies at TUM, we present a new investigation of key factors affecting the separation ability, including emission spectra and photon-sensor quantum efficiency. These results indicate the potential of hybrid detection for future large-scale detectors and upgrades. We acknowledge support from the Deutsche Forschungsgemeinschaft under Germany's Excellence Strategy EXC 2094 - 390783311 and EXC 2118 - 390831469 and through the Sonderforschungsbereich SFB 1258 "Neutrinos and Dark Matter in Astro- and Particle Physics", as well as the DFG Forschungsgruppen FOR 2319 - 268668443 and FOR 5519 - 498394246.
Keywords: JUNO; Cherenkov-scintillation separation; hybrid detection; DSNB; 0νββ