Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Seminar Series LPNHE
Subjects hep-ex
Date Monday 27 September 2021
Time 14:00
Institute LPNHE
Seminar Room Online
Speaker's Last Name Lasserre
Speaker's First Name Thierry
Speaker's Email Address
Speaker's Institution CEA - IRFU
Title Latest results from KATRIN on neutrino mass and the search for sterile neutrinos
Abstract I will present the latest results from the Karlsruhe Tritium Neutrino Experiment (KATRIN). KATRIN probes the effective mass of electron anti-neutrinos via a high-precision measurement of the &#946;-decay spectrum of tritium near its endpoint at 18.6 keV. In the first campaign, KATRIN established that the effective mass of neutrinos is <1.1 eV/c2 (90% CL). In the second physics campaign, the source activity was increased by a factor of 3.8 and the background was reduced by 25% compared to the first campaign. Combining the currently available KATRIN data, we find a new upper limit on the effective neutrino mass at <0.8 eV/c2 (90% CL). Following the neutrino mass run, the KATRIN/TRISTAN project will aim to detect the signature of a sterile keV neutrino by measuring the entire tritium beta decay spectrum using an enhanced KATRIN detection and readout system.
arXiv Preprint Number
Comments We will be using Zoom for this seminar; please contact the organizers at for more details

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