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Background reduction at the KATRIN experiment by the shifted analysing plane configuration

Lokhov, Alexey ; Bieringer, Benedikt; Drexlin, Guido 1,2; Dyba, Stephan; Gauda, Kevin; Fränkle, Florian 2; Glück, Ferenc 2; Hannen, Volker; Hinz, Dominic ORCID iD icon 1,2; Mertens, Susanne; Rodenbeck, Caroline; Schaller, Anna; Weinheimer, Christian
1 Institut für Experimentelle Teilchenphysik (ETP), Karlsruher Institut für Technologie (KIT)
2 Institut für Astroteilchenphysik (IAP), Karlsruher Institut für Technologie (KIT)

Abstract:

The KATRIN experiment aims at measuring the electron neutrino mass with a sensitivity of 0.2 eV/c$^2$ after 5 years of data taking. Recently a new upper limit for the neutrino mass of 0.8 eV/c$^2$ (90% CL) was obtained. To reach the design sensitivity, a reduction of the background rate by one order of magnitude is required. The shifted analysing plane (SAP) configuration exploits a specific shaping of the electric and magnetic fields in the KATRIN main spectrometer to reduce the spectrometer background by a factor of two. We discuss the general idea of the SAP configuration and describe the main features of this novel measurement mode.


Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Institut für Experimentelle Teilchenphysik (ETP)
Publikationstyp Forschungsbericht/Preprint
Publikationsdatum 26.01.2022
Sprache Englisch
Identifikator KITopen-ID: 1000146278
HGF-Programm 51.13.01 (POF IV, LK 01) Neutrinophysik und Dunkle Materie
Nachgewiesen in Dimensions
arXiv
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