Karlsruhe 2024 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 57: Neutrino physics 7

T 57.8: Vortrag

Mittwoch, 6. März 2024, 17:45–18:00, Geb. 30.21: Gerthsen-HS

Search for Light Sterile Neutrinos with the KATRIN Experiment using a Neural Network — •Xaver Stribl and Susanne Mertens for the KATRIN collaboration — Chair fo Dark Matter E47, Technical Universityof Munich

Light sterile neutrinos with a mass on the eV-scale could explain several anomalies observed in short-baseline oscillation experiments. The Karlsruhe Tritium Neutrino (KATRIN) experiment is designed to directly determine the effective electron anti-neutrino mass by measuring the tritium beta decay spectrum. The measured spectrum can also be investigated for the signature of light sterile neutrinos.
In this talk we present the status of the light sterile neutrino analysis of the KATRIN experiment. To handle the increasing computational challenge, a neural network is adapted for the analysis and then used to study the sensitivity of the first five measurement campaigns. The obtained sensitivity is compared to current results and anomalies in the field of light sterile neutrinos. Further, the possibility of including the active neutrino mass in the analysis with the neural network is explored.

Keywords: neutrino; sterile neutrino; neutrino mass; katrin; neural network