Prof.
Nathal Severijns
(Kath. Univ. Leuven)
07/06/2010, 14:50
Fundamental interactions
invited
In the past few years significant progress was made in the study of weak interaction properties at low energies. Particle traps and GEANT based simulations have played a crucial role in this. Improved theoretical calculations and new measurements have verified the unitarity condition of the quark mixing matrix with high precision, leading to stringent limits on different types of physics...
Dr
Paul Kienle
(Technische Universität München)
07/06/2010, 15:20
Fundamental interactions
invited
Excellence Cluster “Universe” Technische Universität München
Abstract:
In recent experiments at the GSI, Darmstadt, time-modulated orbital Electron Capture (EC) decays of H-like 140Pr58+, 142Pm60+, and 122I52+ ions with one electron in the K-shell, coasting in the ESR storage ring with velocity ß = 0.71, were observed. The EC-branches show exponential decay curves time-modulated with period...
54.
Limits on tensor-type weak currents obtained with beta-asymmetry measurements in nuclear decays.
Mr
Frederik Wauters
(Katholieke Universiteit Leuven)
07/06/2010, 15:50
Fundamental interactions
oral with financial aid
Precision beta decay experiments are a powerful tool to probe the structure of the weak interaction at low energies 1). For example, the beta-asymmetry parameter A for pure Gamov-Teller nuclear decays is sensitive to a possible tensor component in the weak interaction if determined at the 1 % precision level. Here we will present two measurements of this parameter. Our results are competitive...