Microwave spectroscopic study of the hyperfine structure of antiprotonic 3He

@article{Friedreich2013MicrowaveSS,
  title={Microwave spectroscopic study of the hyperfine structure of antiprotonic 3He},
  author={Susanne Friedreich and D{\'a}niel Barna and Fritz Caspers and Andreas J Dax and Ryugo Hayano and Masaki Hori and Dezso Horvath and Bertalan Juh{\'a}sz and T. Kobayashi and Oswald Massiczek and A. Soter and Koichi Todoroki and Eberhard Widmann and Johann Zmeskal},
  journal={Journal of Physics B: Atomic, Molecular and Optical Physics},
  year={2013},
  volume={46}
}
In this work, we describe the latest results for the measurements of the hyperfine structure of antiprotonic 3He. Two out of four measurable super–super-hyperfine (SSHF) transition lines of the (n, L) = (36, 34) state of antiprotonic 3He were observed. The measured frequencies of the individual transitions are 11.125 48(08) GHz and 11.157 93(13) GHz, with the increased precisions of about 43% and 25%, respectively, compared to our first measurements with antiprotonic 3He (Friedreich et al 2011… 

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