KATRIN-a new tritium beta decay experiment to study the electron neutrino mass in the sub-eV range

Details KATRIN-a new tritium beta decay experiment to study the electron neutrino mass in the sub-eV range KATRIN-a new tritium beta decay experiment to study the electron neutrino mass in the sub-eV range

Feb 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aipc..605..461s&link_type=abstract

LOW TEMPERATURE DETECTORS: Ninth International Workshop on Low Temperature Detectors. AIP Conference Proceedings, Volume 605, p

Physics

Neutrino Mass And Mixing, Calorimeters, Weak-Interaction And Lepton Aspects, A<=5

Scientific paper

A precise measurement of the endpoint region of the tritium beta decay spectrum (E0=18.56 keV) allows to directly determine the mass of the electron neutrino. We present a new experiment with sub-eV sensitivity, which will measure the endpoint region making use of a large electrostatic retarding spectrometer. After passing the spectrometer detection of the decay electrons could be achieved by a large microcalorimeter array. The excellent resolution of such a detector would make it possible to reduce the influence of background events considerably, thus enhancing the sensitivity to sub-eV ν-masses. .

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