The KATRIN neutrino mass experiment

Menglei Sun, University of Washington
NPL 178

The absolute neutrino mass scale plays an important role in cosmology, particles physics and astrophysics. The Karlsruhe Tritium Neutrino (KATRIN) experiment aims at a direct and model independent determination of the neutrino mass with 0.2 eV (90% C.L.) sensitivity via ultrahigh precision measurements of the kinematics of tritium beta decay. It combines an ultra-luminous molecular windowless tritium source with a high resolution MAC-E-filter based spectrometer. This talk will report the neutrino mass measurement result from the first four-week science run of the KATRIN in spring 2019.

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