Speaker
Description
The Karlsruhe Tritium Neutrino (KATRIN) experiment probes the absolute neutrino mass scale by precision spectroscopy of the tritium $\beta$-decay spectrum. By 2025, a final sensitivity better than 0.3$\,$eV/c$^2$ (90% C.L.) is anticipated with a total of 1000 days of measurement.
Going beyond this goal, for instance towards the regime of inverted mass ordering, requires novel technological approaches to significantly improve statistics, energy resolution, and background suppression. In this work, we explore two key strategies: (1) implementing a differential detector technique with sub-eV energy resolution (quantum sensor detector array, time-of-flight) and (2) exploring a large-volume atomic tritium source. This allows for high statistics to be acquired more quickly and with ultra-high energy resolution. In this poster presentation, we investigate the limits by physics and requirements by technology to confine achievable sensitivities on neutrino mass with a differential measurement.
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