Speaker
Florian Fränkle
(Karlsruhe Institute of Technology)
Description
Experimental information about the neutrino masses and lepton mixing is important both for cosmology and particle physics. Cosmological observations and neutrinoless double beta decay experiments provide an indirect access to the absolute neutrino mass scale, but are model-dependent. A model independent, direct way to measure the neutrino masses is the investigation of the kinematics of single beta decay via a precise measurement of the beta decay electron energy spectrum close to the endpoint.
The talk will give an overview of direct experimental methods for neutrino mass measurements and present the status of different experiments. In case of the KArlsruhe TRItium Neutrino (KATRIN) experiment the experimental setup and status of the experiment will be described in more detail. The KATRIN experiment is designed to determine the absolute neutrino mass scale, with a sensitivity of 200 meV, by a precise energy measurement of decay electrons from tritium beta-decay close to the endpoint of the energy spectrum.
Primary author
Florian Fränkle
(Karlsruhe Institute of Technology)
