Speaker
Andreas Knecht
(Paul Scherrer Institut)
Description
Muonic atoms as laboratories for fundamental physics provide crucial input to
quantum electrodynamics, the weak interaction and the strong interaction. Many
studies of muonic atoms have relied on the detection of X-ray from the muonic
cascades. Most stable and a few unstable isotopes have been investigated with
muonic atom spectroscopy techniques. In particular, muonic atoms have been used to
extract the most accurate nuclear charge radii. However, experiments with muonic
atoms have been limited by low muon rates, poor beam quality and large muon stop
volumes, but also by available detector technology for this environment. While beam
intensities and quality have been improved in recent years, still no higher multiplicity
spectroscopy of muonic cascades has been performed.
We are preparing an experiment to determine the charge radius of radium, which is one of the missing parameters for the measurement of atomic parity violation in radium. In this talk I will present the plans and status of the experiment and the results of our last beam time.
Primary author
Andreas Knecht
(Paul Scherrer Institut)
