May 29, 2018 to June 3, 2018
Hyatt Regency Indian Wells Conference Center
US/Pacific timezone

The KATRIN Neutrino Mass Measurement: Experiment, Status, and Outlook

May 29, 2018, 2:00 PM
South Foyer | Nopales Room (Hyatt Regency Indian Wells Conference Center)

South Foyer | Nopales Room

Hyatt Regency Indian Wells Conference Center

44600 Indian Wells Lane, Indian Wells, CA 92210, USA


Prof. Gregg Franklin (Carnegie Mellon University)


The Karlsruhe Tritium Neutrino (KATRIN) experiment will provide a measurement of the effective electron-neutrino mass, $m(\nu_e)$, based on a precision measurement of the tritium beta decay spectrum near its endpoint. The effective mass is an average of the neutrino mass eigenstates $m_i$ weighted by the flavor-mass mixing parameters $U_{ei}$ according to the relation $m^2(\nu_e)=\sum_{i=1}^3 |U_{ei}|^2 m_i^2$. The KATRIN apparatus uses a windowless gas tritium source (WGTS) and a spectrometer based on the MAC-E-Filter concept to measure the beta energy spectrum. The KATRIN program is designed to reach a mass sensitivity of 0.2 eV (90 % C.L.). The collaboration has completed a series of commissioning measurements and is moving into the first running of tritium. This talk will provide an overview of the KATRIN apparatus with emphasis on the MAC-E filter. Results from the initial commissioning runs and the status of the initial tritium beta-spectrum measurements will be presented.
Collaboration name KATRIN Collaboration
Funding source The primary support for US participation in KATRIN is provided by the U.S. DOE, Office of Nuclear Physics, under award number DE-FG02-97ER41020

Primary author

Prof. Gregg Franklin (Carnegie Mellon University)

Presentation materials