Göttingen 2025 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 17: Neutrino Physics II

T 17.1: Vortrag

Montag, 31. März 2025, 16:45–17:00, VG 3.104

Novel constraints on neutrino physics beyond the standard model of elementary particles from the CONUS and CONUS+ experiments — •Dario Piani, Nicola Ackermann, Hannes Bonet, Christian Buck, Janina Hakenmüller, Janine Hempfling, Gerd Heusser, Manfred Lindner, Werner Maneschg, Kaixiang Ni, Thomas Rink, Edgar Sánchez García, and Herbert Strecker — MPIK, Heidelberg, Germany

The detection of coherent elastic neutrino-nucleus scattering (CEνNS) opens up new opportunities for neutrino physics within and beyond the standard model of elementary particles. Constantly refining the setup, the experiments CONUS (until 2022) and CONUS+ (since 2023) provide valuable data towards the detection of such events from reactor (anti)neutrinos emitted by the powerful (3.9 GW and 3.6 GW) reactors of the nuclear power plants in Brokdorf (Germany) and Leibstadt (Switzerland). The acquired and future CONUS/CONUS+ data sets enable further investigations on neutrino physics beyond the standard model, such as yet undetected neutrino channels and electromagnetic properties. This talk will explore constraints on beyond the standard model neutrino phenomenology from not yet analyzed data. Bounds on non-standard neutrino-quark interactions of vector and tensor type from CEνNS are presented. Furthermore, the parameter space of simplified scalar and vector mediators probed by CEνNS and elastic neutrino-electron scattering is discussed. Finally, limits on an effective neutrino magnetic moment and effective neutrino millicharge are given.

Keywords: Neutrinos; Coherent Elatstic Neutrino-Nucleus Scattering; CONUS; NSI; BSM