Abstract
Absolute pionic x-ray intensities have been measured for Mg and Fe. The accuracy achieved was 2% of the line intensity for the most prominent transitions. In the Balmer series of Mg and the Paschen series of Fe the crossover transitions were found to be even more attenuated than the transitions between circular states, as deduced, for example, by comparison with muonic atoms; no crossover transitions were observed in the Fe Balmer series. According to cascade calculations based on the experimental intensities more than half of the pions are absorbed in Fe already from levels with principal quantum numbern>17 by strong interaction.
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Dedicated to Prof. Dr. P. Kienle on the occasion of his 60th birthday
We would like to thank PSI for hospitality and support. Thanks are also due to H. Angerer, P. Gheno and P. Stoeckel for technical assistance. Help by Dr. R. Frosch in setting up the beam and by Prof. J.J. Reidy during the runs is thankfully appreciated. Financial support by the German Bundesministerium für Forschung und Technologie is acknowledged.
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Hartmann, F.J., Daniel, H., Neumann, W. et al. Absolute pionic x-ray intensities in Mg and Fe. Z. Physik A - Hadrons and Nuclei 341, 101–105 (1991). https://doi.org/10.1007/BF01281280
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DOI: https://doi.org/10.1007/BF01281280