Published: 1976
Total Pages:
Get eBook
In an experiment at the Brookhaven National Laboratory AGS a number of radiative decays of the K°/sub L/(..pi ... pi..−..gamma.., ee−..gamma.. and ..mu..+..mu..−..gamma..) were studied. The charged particles from these decays were detected in a 5000 wire proportional chamber spectrometer and the gammas were detected in a 194 element lead glass Cherenkov counter array. Preliminary results, based on approximately 25 percent of our total data sample, are as follows: The branching ratio K°/sub L/ yields ..pi pi gamma..(direct)/K°/sub L/ yields all = 5.5 /sup +/- 1.0 x 10−5. One example of the previously unobserved decay K°/sub L/ yields ee..gamma.. was found, yielding a branching ratio of 8.3 +- 8.3 x 10−6. No examples of the decays K°/sub L/ yields ..mu mu gamma.., ee..pi..°, and Z/sup +/..mu mu pi..° were found, yielding improved upper limits of K°/sub L/ yields ..mu mu gamma../K°/sub L/ yields all