Abstract
We have measured the branching ratio (z0)(z00) to be [1.06±0. 12(stat)±0.11(syst)]×10-3. In 670 000 candidates we found 116+13 decays (background subtracted). These compare with 29 510 N 0 events reconstructed from the sample. Monte Carlo studies gave the relative acceptances for the two processes. The helicity of the yielded the product of asymmetry parameters =0.27±0.28, which implies ±(z)=0.43+0.44, where the uncertainty is all statistical.
Original language | English (US) |
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Pages (from-to) | 843-846 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 64 |
Issue number | 8 |
DOIs | |
State | Published - 1990 |