Neutral Decay Modes of theη0Meson
- 1 April 1970
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 1 (7), 1936-1945
- https://doi.org/10.1103/physrevd.1.1936
Abstract
The branching ratios of the decay of the meson into neutral products have been measured. The is produced in the reaction , and the decay products are observed as rays by a system of optical spark chambers and counters in nearly geometry. Emphasis was placed on examining evidence for the decay mode . Measurement of the neutron time of flight in the production process, together with detailed measurement and kinematical analysis of the pictures showing four rays, enables us to test each event for consistency with such a decay mode, and also for the "background" process . From what is essentially a comparison of the observed rates for these processes, we obtain the upper limit for (90% confidence level), a result which is relatively insensitive to estimates of the efficiency of the detecting system. We also obtain .
Keywords
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