In this contribution, we review the status and perspectives of direct neutrino mass
experiments, which investigate the kinematics of β‐decays of specific isotopes (3H, 187Re …

We report on the neutrino mass measurement result from the first four-week science run of
the Karlsruhe Tritium Neutrino experiment KATRIN in spring 2019. Beta-decay electrons …

The determination of the neutrino mass plays an important role in cosmology, particle
physics, and astroparticle physics. The investigation of the energy spectrum of tritium β …

The various experiments on neutrino oscillation evidence that neutrinos have indeed non‐
zero masses but cannot provide the absolute neutrino mass scale. This scale of neutrino …

We report on a precise measurement of the electron-antineutrino angular correlation (a
coefficient) in free neutron beta decay from the a SPECT experiment. The a coefficient is …

[en] In particle physics and cosmology neutrinos play a special role: Although they are the
numerically most abundant (known) particles in the universe, their fundamental properties …

Precision measurements in free neutron beta decay serve to determine the coupling
constants of beta decay, and offer several stringent tests of the standard model. This paper …

Abstract The KArlsruhe TRItium Neutrino (KATRIN) experiment aims at a measurement of
the neutrino mass with a 90% confidence limit (CL) sensitivity of 0.2 eV/c 2 by measuring the …

Abstract The Karlsruhe Tritium Neutrino (KATRIN) experiment will determine the mass of the
electron neutrino with a sensitivity of 0.2 eV (90% CL) via a measurement of the β-spectrum …

The KATRIN experiment will measure the absolute mass scale of neutrinos with a sensitivity
of m ν= 200meV/c 2 by means of an electrostatic spectrometer set close to the tritium β …