Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2010-12-10
Physics
High Energy Physics
High Energy Physics - Experiment
6 pages, 2 figures, to be published in Proceedings of the XXIV International Conference on Neutrino Physics and Astrophysics,
Scientific paper
The properties of neutrinos and especially their rest mass play an important role at the intersections of cosmology, particle physics and astroparticle physics. At present there are two complementary approaches to address this topic in laboratory experiments. The search for neutrinoless double beta decay probes whether neutrinos are Majorana particles and determines an effective neutrino mass value. On the other hand experiments such as MARE, KATRIN and the recently proposed Project 8 will investigate the spectral shape of beta-decay electrons close to their kinematic endpoint in order to determine the neutrino rest mass with a model-independent method. Here, because of neutrino flavour mixing, the neutrino mass appears as an average of all neutrino mass eigenstates contributing to the electron neutrino. The KArlsruhe TRItium Neutrino experiment (KATRIN) is currently the experiment in the most advanced status of commissioning. It combines an ultra-luminous molecular windowless gaseous tritium source with an integrating high-resolution spectrometer of MAC-E filter type. It will investigate the neutrino rest mass with 0.2 eV/c (90% C.L.) sensitivity and allow beta spectroscopy close to the tritium endpoint at 18.6 keV with unprecedented precision.
for the KATRIN Collaboration
Thümmler Thomas
No associations
LandOfFree
Introduction to direct neutrino mass measurements and KATRIN does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Introduction to direct neutrino mass measurements and KATRIN, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Introduction to direct neutrino mass measurements and KATRIN will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-107897