Radiative Yields of theKSeries inπ-Mesonic Atoms

Abstract

The total radiative yields of the $K$-series lines from $\pi$-mesonic atoms have been measured for the elements Li through F, inclusive, and Na. The yield is a maximum at Be, 21%, and falls to about 3% at Na. The yields of N, O, and F are roughly comparable. This anomaly may be due to a magic-number effect at $Z=8\mathrm{}$.