BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-6796
DTSTART:20220118T200000Z
DTEND:20220118T210000Z
DTSTAMP:20260414T153816Z
LAST-MODIFIED:20220114T233046Z
LOCATION:virtual: https://berkeley.zoom.us/j/91230714547
SUMMARY:Latest Results from the KATRIN Experiment\, Network in Neutrin
 os\, Nuclear Astrophysics\, and Symmetries (N3AS) Seminar\, Christian 
 Karl\, Max Planck Institute for Physics and Technical University of Mu
 nich
DESCRIPTION:From neutrino oscillation experiments we know that at leas
 t two neutrino mass eigenstates have a non-zero rest-mass. However\, t
 he absolute scale of the neutrino mass cannot be assesed from the osci
 llation. One approach to infer the mass scale is to measure the electr
 on energy spectrum of beta-decay precisely in the so-called endpoint r
 egion where the electron takes most of the surplus energy. The current
 ly leading experiment in this field is the Karlsruhe Tritium Neutrino 
 (KATRIN) experiment. It is designed to measure the effective electron 
 anti-neutrino mass (m_nu) with a sensitivity of 200 meV at 90% confide
 nce level. In this talk we give an overview of the experimental setup\
 , measurement principle and data analysis of KATRIN and discuss the la
 test results which limit (m_nu) to less than 0.8 eV (90% C.L.). Finall
 y\, we take a look at the possibilities with further measurement campa
 igns and show some recent advancements in our data analysis. https://b
 erkeley.zoom.us/j/91230714547
URL:https://www.physics.wisc.edu/events/?id=6796
END:VEVENT
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