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View article: [formula presented] decay distributions
[formula presented] decay distributions Open
Using a sample of 3.8 M (Formula presented) events accumulated with the BES detector, the process (Formula presented) is studied. The angular distributions are compared with the general decay amplitude analysis of Cahn. We find that the di…
View article: Direct measurement of [formula presented] and [formula presented]
Direct measurement of [formula presented] and [formula presented] Open
The first measurement of (Formula presented) and an upper limit for (Formula presented) are determined from 22.3 (Formula presented) of (Formula presented) annihilation data at a c.m. energy of 4.03 GeV. The data were recorded by the Beiji…