THE PRODUCTION AND DECAY OF TAU-LEPTONS IN E+E- ANNIHILATION AT PETRA ENERGIES
We have observed τ pair production at average CM energies of 13.9, 22.3, 34.5 and 43.1 GeV. The cross-sections are consistent with QED, the cut off parameters being Λ+>161 GeV and Λ-169 GeV (95% CL). The topological branching fraction of the τ to 1 charged particle, B1, is 0.847±0.011 (stat)-...
Glavni autori: | , , , , , , , , , , , , , , , , , , , , , , , , |
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Format: | Journal article |
Jezik: | English |
Izdano: |
Springer-Verlag
1984
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