Speakers
Description
The KArlsruhe TRItium Neutrino (KATRIN) experiment probes the effective electron anti-neutrino mass by a precision measurement of the tritium beta-decay spectrum near the endpoint. Using data from the first five measurement campaigns, KATRIN has established a world-leading upper limit of 0.45$\,$eV/c$^2$ (90% C.L.). After 1000days of measurement and 19 campaigns, the data taking was concluded in October 2025. The available statistics of the full data set has increased by more than a factor six compared to the previous dataset.
In this contribution, we discuss the analysis approaches employed in the KATRIN neutrino-mass measurement and provide an update on the current status of the analysis using data from all 19 measurement campaigns. We further present an outlook on the combination of the complete KATRIN dataset to obtain the final KATRIN neutrino-mass result. Finally, we discuss the potential for further statistical improvement by extending the standard analysis range of the KATRIN analysis from 40 to 60 or even 90$\,$eV below the endpoint.
This work is supported by the Helmholtz Association and by the Ministry for Education and Research BMFTR (grant numbers 05A23PMA, 05A23PX2, 05A23VK2, and 05A23WO6).
| Collaboration or Other Affiliation | KATRIN |
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