X-RAY YIELDS IN THE K AND L SERIES OF $mu$-MESONIC ATOMS

Previous experimental results (NSA 11: 5984) gave yields of x rays in the K and L series of light mu -mesic atoms, requiring that the Auger rates competing with radiative transitions be respectively approximately 300 times (K series) or approximately 30 times (L series) as fast as predicted by conventional theory or else that some hithentofore unknown competitive transition mechanism be postulated. In view of this, yields in the pi -mesic K and L series were remeasured, in particular for those light elements for which low or unobservable yields have been reported. Preliminary results are presented graphically and tabularly that do not confirm those previously published. ( L.N.N.)