Abstract
Lyman and Balmer transitions of antiprotonic hydrogen and deuterium have been measured at the Low-Energy Antiproton Ring LEAR at CERN in order to determine the strong-interaction effects. In LEAR experiment PS207, the X-rays were detected using Charge-Coupled Devices (CCDs) and a reflection-type crystal spectrometer. A complete set of strong-interaction parameters for the 1 s and the 2 p levels is now available for both \( \bar pH{\mathbf{ }}{\text{and}}{\mathbf{ }}\bar pD \) after evidence was found for the \( \bar pD{\mathbf{ }}{\text{K}}\alpha \) transition.
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Anagnostopoulos, D.F. et al. (2001). Precision Spectroscopy of X-rays from Antiprotonic Hydrogen. In: Karshenboim, S.G., Bassani, F., Pavone, F., Inguscio, M., Hänsch, T. (eds) The Hydrogen Atom. Lecture Notes in Physics, vol 570. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45395-4_31
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