KATRIN First neutrino mass result
Lutz Schimpf
Karlsruhe Institute of Technologie
Abstract:
The KArlsruhe TRItium Neutrino experiment (KATRIN) is targeted to measure the mass of the electron neutrino from beta-decay of tritium with an unprecedented sensitivity of 0.2 eV/c2 at 90% confidence level. After a first Tritium campaign with a low tritium purity of around 0.5% and a Deuterium campaign to study systematics in 2018, the very first KATRIN neutrino mass run was performed in April and May of this year. The analysis of the first 274 beta spectrum scans close to the kinematic endpoint at 18.57 keV gives an improved upper limit of m(ν) < 1.1 eV (90% CL) on the absolute mass scale of neutrinos.
This talk gives an overview of the measurement principle and the complex experimental setup of KATRIN as well as its performance during the first KATRIN science run. The presentation is concluded by discussing the data taking and analysis leading to the new upper neutrino mass limit.
Seminar takes place on Tuesday, November 12th 2019 at 2:00 PM
in the IEAP meeting room, Praha 1, Husova 240/5.
| Ing. Bartoloměj Biskup, Ph.D. seminar organizer |
doc. Ing. Ivan Štekl, CSc. director of IEAP |
doc. Dr. André Sopczak IEEE CS - NPSS chair |
NUCLEAR & PLASMA SCIENCES SOCIETY CHAPTER
IEEE Czechoslovakia section
http://www.ieee.cz/en/nps
Seminar images gallery
IMG_2646
IMG_2653
IMG_2654
IMG_2656
IMG_2661
IMG_4086