Determination of the2p−1stransition energy and strong interaction shift in pionic hydrogen using crystal diffraction

1 December 1983

journal article
research article
Published by American Physical Society (APS) in Physical Review C

Vol. 28 (6) , 2374-2379
https://doi.org/10.1103/PhysRevC.28.2374

Abstract

The

2 p - 1 s

atomic transition in pionic hydrogen has been studied with the help of a point-focusing graphite diffraction spectrometer. The transition energy was measured to be

E (2 p - 1 s) = 2433.5 \pm 1.7

eV. From this result a strong interaction shift of -3.9±1.7 eV was derived. The

K α

x-ray yield in the 2.7 atm hydrogen target at 40 K was found to be 0.025±0.013 per stopped pion.

Keywords

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