Abstract
The hadronic shift in pionic hydrogen has been redetermined to be ε 1s = 7.086 ± 0.007(stat) ± 0.006(sys) eV by X-ray spectroscopy of ground-state transitions applying various energy calibration schemes. The experiment was performed at the high-intensity low-energy pion beam of the Paul Scherrer Institut by using the cyclotron trap and an ultimate-resolution Bragg spectrometer with bent crystals.
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21 February 2019
After publication of the paper, the authors have noticed an error. Its correction is given in this erratum.
21 February 2019
After publication of the paper, the authors have noticed an error. Its correction is given in this erratum.
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Hennebach, M., Anagnostopoulos, D.F., Dax, A. et al. Hadronic shift in pionic hydrogen. Eur. Phys. J. A 50, 190 (2014). https://doi.org/10.1140/epja/i2014-14190-x
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DOI: https://doi.org/10.1140/epja/i2014-14190-x