Göttingen 2025 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 59: Neutrino Physics V

T 59.2: Vortrag

Mittwoch, 2. April 2025, 16:30–16:45, VG 3.103

JUNOs sensitivity to the annihilation of sub-GeV dark matter in the galactic halo — •Jessica Eck, Dhanushka Bandara, Lukas Bieger, Silvia Cengia, Adrian Keiderling, Florian Kirsch, Tobias Lachenmaier, Anurag Sharma, and Tobias Sterr — Eberhard Karls Universität Tübingen, Physikalisches Institut

The Jiangmen Underground Neutrino Observatory (JUNO) is in the final construction stage in southern China with the main goal to determine the neutrino mass hierarchy with reactor antineutrinos. Due to the large volume of 20 kt, indirect search for self-annihilating light dark matter (DM) in the mass range from 10 MeV to 1 GeV is an additional physics goal of JUNO. In this talk, the expected signal from a monoenergetic neutrino flux on Earth, originating from direct annihilation of DM particles into neutrinos, will be discussed. Furthermore, different methods to suppress background contributions in the respective energy range are presented to estimate the expected sensitivity of JUNO to DM self-annihilation in the Milky Way.

Keywords: sub-GeV dark matter; neutrino physics; JUNO