Probing the neutrino mass: latest results from KATRIN

Add to your list(s) Download to your calendar using vCal

• Prof. Kathrin Valerius (Karlsruhe Institute of Technology)
• Tuesday 04 May 2021, 16:00-17:00
• https://cern.zoom.us/j/61144924828?pwd=WDB6QmFCMEZiSEN5Q0k2aklWSjk5Zz09.

If you have a question about this talk, please contact William Fawcett.

Precision measurements of the kinematics of weak decays offer a direct and nearly model independent approach to probe the absolute neutrino mass scale. The KArlsruhe TRItium Neutrino experiment (KATRIN) is searching for the minute imprint of the neutrino mass in the endpoint region of the tritium beta-decay spectrum. KATRIN employs a high-intensity gaseous molecular tritium source and a high-resolution electrostatic filter with magnetic adiabatic collimation to target a neutrino-mass sensitivity of 0.2eV/c2, thus improving on previous experiments by an order of magnitude, after five years of data-taking.

With just its first science run, KATRIN has improved previous direct neutrino mass bounds by about a factor of two, yielding a new upper limit of 1.1 eV/c2 (90% CL), and has begun to address further science channels such as the direct search for light sterile neutrinos. As larger data sets are collected and further improvements in terms of signal-to-background ratio and systematics are being achieved, KATRIN is continuing along its path towards sub-eV neutrino mass sensitivity and the exploration of interesting BSM physics cases.

This talk is part of the Cavendish HEP Seminars series.

This talk is included in these lists:

• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• Cavendish HEP Seminars
• Centre for Health Leadership and Enterprise
• Featured lists
• ME Seminar
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• School of Physical Sciences
• Thin Film Magnetic Talks
• few29
• https://cern.zoom.us/j/61144924828?pwd=WDB6QmFCMEZiSEN5Q0k2aklWSjk5Zz09

Note that ex-directory lists are not shown.