Dr. Torsten Soldner (ILL Grenoble): "Towards precision proton spectroscopyin neutron beta decay."

Friday 13 Dec 2013, 11:00 → 11:30 Europe/Berlin

Seminar room K017 (Excellence Cluster Universe)

Kurzvortrag im Rahmen einer Berufung Precision experiments in neutron beta decay serve to determine parameters of the standard model of particle physics. They deliver important input for cosmology or neutrino oscillation experiments. On the other hand, they are preformed to search for physics beyond the standard model where they provide competitive limits on new interactions. In order to improve accuracy, progress is needed in different areas. We have advanced neutron polarimetry to the 10^-4 accuracy level and are working towards improved measurements of proton correlations in neutron decay. These experiments are particularly challenging because of the low energy of the decay protons. I will discuss motivation, results and next steps in our quest for precision.