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Recent Results of the Majorana Demonstrator Experiment
J. M. López-Castaño
The MAJORANA DEMONSTRATOR is searching for neutrinoless double-beta decay in Ge with two modular arrays of natural and Ge-enriched germanium detectors. It is located…
First operation of the KATRIN experiment with tritium
M. Aker, K. Altenmüller, M. Arenz +168
The determination of the neutrino mass is one of the major challenges in astroparticle physics today. Direct neutrino mass experiments, based solely on the kinematics of beta-decay…
An improved upper limit on the neutrino mass from a direct kinematic method by KATRIN
M. Aker, K. Altenmüller, M. Arenz +205
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 from…
High-resolution spectroscopy of gaseous Kr conversion electrons with the KATRIN experiment
K. Altenmüller, M. Arenz, W. -J. Baek +124
In this work, we present the first spectroscopic measurements of conversion electrons originating from the decay of metastable gaseous Kr with the Karlsruhe Tritium…
Gamma-induced background in the KATRIN main spectrometer
K. Altenmüller, M. Arenz, W. -J. Baek +123
The KATRIN experiment aims to measure the effective electron antineutrino mass with a sensitivity of 0.2 eV/c using a gaseous tritium source combined with th…
A Search for Neutrinoless Double-Beta Decay in Ge with 26 kg-yr of Exposure from the MAJORANA DEMONSTRATOR
S. I. Alvis, I. J. Arnquist, F. T. Avignone +61
The MAJORANA Collaboration is operating an array of high purity Ge detectors to search for the neutrinoless double-beta decay of Ge. The MAJORANA DEMONSTRATOR consists of 44…