21 October 2016
Paul Scherrer Institut
Europe/Zurich timezone

Toward the measurement of the nuclear charge radius of 226Ra

21 Oct 2016, 12:00
30m
Auditorium / WHGA001 (Paul Scherrer Institut)

Auditorium / WHGA001

Paul Scherrer Institut

CH-5232 Villigen

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)

Presentation materials