Heidelberg 2015 – wissenschaftliches Programm
A 39.5: Vortrag
Freitag, 27. März 2015, 12:00–12:15, C/kHS
The Experimental Apparatus of the Muonic Helium Lamb Shift Measurement — •Beatrice Franke and the CREMA Collaboration — Max-Planck-Institute of Quantum Optics, Garching
Muonic atoms have an increased sensitivity on finite size effects of the nucleus due to the approximately 200-fold mass of the muon compared to the electron. The Lamb shift experiment of the CREMA collaboration in muonic hydrogen  and deuterium allowed to determine the proton radius and other nuclear properties with an improved precision compared to previously conducted measurements. As a successor experiment, the determination of the Lamb shift in the muonic helium ions mu3He+ and mu4He+  will be a contribution to solving the proton radius puzzle  as well as the discrepancy in electronic isotope-shift measurements. In this talk, an overview of the components of the experimental apparatus is given: Details on the muon beam line, the laser scheme and the different detector systems as well as other specifics necessary to perform this high sensitivity measurement.
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 R. Pohl et al., Annu. Rev. Nucl. Part. Sci. 63, 175-204 (2013)