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Combined analysis of the first five KATRIN measurement campaigns with KaFit

Hickford, Stephanie; Köllenberger, Leonard ORCID iD icon 1; Xu, Weiran; KATRIN Collaboration
1 Institut für Astroteilchenphysik (IAP), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

The KATRIN collaboration aims to determine the neutrino mass with a sensitivity of 0.2 eV/c2 (90 % CL). This will be achieved by measuring the endpoint region of the tritium β-electron spectrum. Combined analysis of the first two KATRIN measurement campaigns yielded a neutrino mass limit of mν ≤ 0.8 eV (90 % CL).

Analyses of data from the first five measurements campaigns are currently underway. One of the combined analyses is performed using the KaFit/SSC model within the KASPER software framework. In this analysis systematic uncertainties are propagated as additional fit parameters with constraints (the “pull term” method). An overview of the collected data and the expected combined sensitivity on the neutrino mass from these five measurement campaigns will be presented in this talk.


Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Publikationstyp Vortrag
Publikationsdatum 20.03.2023
Sprache Englisch
Identifikator KITopen-ID: 1000156023
HGF-Programm 51.13.01 (POF IV, LK 01) Neutrinophysik und Dunkle Materie
Veranstaltung 86th Jahrestagung der DPG und DPG-Frühjahrstagung der Sektion Materie und Kosmos - Arbeitskreis Beschleunigerphysik (SMuK 2023), Dresden, Deutschland, 20.03.2023 – 24.03.2023
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