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Microwave spectroscopic study of the hyperfine structure of antiprotonic helium-3
Susanne Friedreich, Daniel Barna, Fritz Caspers +11
In this work we describe the latest results for the measurements of the hyperfine structure of antiprotonic helium-3. Two out of four measurable super-super-hyperfine SSHF transiti…
First observation of two hyperfine transitions in antiprotonic He-3
S. Friedreich, D. Barna, F. Caspers +11
We report on the first experimental results for microwave spectroscopy of the hyperfine structure of antiprotonic He-3. Due to the helium nuclear spin, antiprotonic He-3 has a more…
Antiproton magnetic moment determined from the HFS of antiprotonic helium
T. Pask, D. Barna, A. Dax +9
We report a determination of the antiproton magnetic moment, measured in a three-body system, independent of previous experiments. We present results from a systematic study of the…
Muonic hydrogen cascade time and lifetime of the short-lived state
L. Ludhova, F. D. Amaro, A. Antognini +24
Metastable muonic-hydrogen atoms undergo collisional -quenching, with rates which depend strongly on whether the kinetic energy is above or below the ${2S}\to {2P…