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primary topic: Investigating Neutrino Physics within and beyond the Standard Model using CONUS Experimental Data

Investigating Neutrino Physics within and beyond the Standard Model using CONUS Experimental Data
type: Article
abstract: The observation of coherent elastic neutrino-nucleus scattering (CEvNS) opens up new possibilities for the standard model (SM) neutrino sector and beyond. As a leading reactor experiment, CONUS aims for its detection in the coherent interaction regime with antineutrinos emitted from the 3.9 GW_(th) reactor core of the Brokdorf nuclear power plant. The experiment makes use of four high-purity germanium detectors within a compact shield at 17 m distance. In this thesis spectral investigations of CEvNS and further neutrino interactions beyond the standard model (BSM) are performed, which are based on data collected between April 2018 and June 2019. The analysis scheme relies on signal predictions incorporating the evolution of the reactor's fuel composition and of its thermal power. The spectral analysis constrains CEvNS to contribute with <=85 events (90 C.L.) assuming the favored quenching parameter k=0.16, which is a factor of ~10 above its SM prediction. BSM investigations of CEvNS and elastic neutrino-electron scattering (EveS) yield competitive bounds for non-standard interactions (NSIs) and simplified mediator models. The energy scales of vector and tensor NSIs are individually constrained to lie above 100 GeV and 360 GeV. Universal couplings of simplified mediators can be probed down to ~10^(-5) and ~10^(-6) for CEvNS and EveS, respectively. Finally, 90 C.L. limits on the neutrino's effective magnetic moment ($\mu_{\nu_{e}}$ < 7.5 * 10^(-11) $\mu_{B}$) and millicharge ($|q_{\nu_{e}}|$ < 3.3 * 10^(-12) e) are determined.
date: 2022
author list: authors
type: EPrint
type: DoctoralThesisEPrint
is part of: repository
has document: Investigating Neutrino Physics within and beyond the Standard Model using CONUS Experimental Data (Other)
has document: Investigating Neutrino Physics within and beyond the Standard Model using CONUS Experimental Data (PDF)
subject: 530 Physik

Investigating Neutrino Physics within and beyond the Standard Model using CONUS Experimental Data (PDF)
type: Document
has file: Doktorarbeit_TRink.pdf
has part: Doktorarbeit_TRink.pdf

Thomas Rink
type: Person
given name: Thomas
family name: Rink

Investigating Neutrino Physics within and beyond the Standard Model using CONUS Experimental Data (Other)
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Investigating Neutrino Physics within and beyond the Standard Model using CONUS Experimental Data (Other)
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primary topic: Investigating Neutrino Physics within and beyond the Standard Model using CONUS Experimental Data

530 Physik
type: Concept
preferred label: 530 Physics @en