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hep-ph2016★ 2 cited
Positronium and Muonium 1S-2S Laser Spectroscopy as a Probe for the Standard-Model Extension
P. Crivelli, G. Wichmann
We present the status and the prospects of the ongoing efforts to improve the measurements of the 1S-2S transition in positronium and muonium. These purely leptonic systems represe…
hep-ph2016
Development of a low-energy, high-brightness beam line
A. Eggenberger, I. Belosevic, G. Wichmann
We are developing a beam line which compresses the phase space of a standard surface beam by 10 orders of magnitude with an efficiency of . Phase space compression o…