New upper limits on the neutrino mass, from the KATRIN experiment
Larisa Thorne, on behalf of the KATRIN collaboration
Institut für Physik, Johannes Gutenberg Universität Mainz, Germany
Abstract:
The KArlsruhe TRItium Neutrino (KATRIN) experiment aims to make a precision measurement of the effective neutrino mass by leveraging the kinematics of tritium beta decay, with a goal neutrino-mass sensitivity of 0.2eV (90% C.L.). To achieve this, the experiment performs an integrating measurement on an ultra-luminous molecular tritium source with a MAC-E filtering spectrometer, with high statistics and well-controlled systematics.
I will report on the newest results from a combined 259 days' worth of data-taking, from which we extract one of the strongest lab-based upper limits on the neutrino mass to date: m_nu < 0.45 eV (90% C.L.)[1]. Additionally, I will outline the next phase of KATRIN and discuss what would be required for next-generation neutrino mass experiments of this kind.
References:
[1] arXiv preprint: https://arxiv.org/abs/2406.13516”.
Seminar takes place on Tuesday, September 17th 2024 at 2:30 PM
in the IEAP meeting room, Praha 1, Husova 240/5.
| Ing. Bartoloměj Biskup, Ph.D. seminar chair |
doc. Ing. Ivan Štekl, CSc. director of IEAP |
doc. Dr. André Sopczak IEEE CS - NPSS chair |
NUCLEAR & PLASMA SCIENCES SOCIETY CHAPTER
IEEE Czechoslovakia section
https://www.ieee.cz/main/section/nps/