Abstract
Single W boson production in electron-positron collisions is studied with the L3 detector at centre-of-mass energies between 192 GeV and 209 GeV. Events with two acoplanar hadronic jets or a single energetic lepton are selected, and the single W cross section is measured. Combining the results with measurements at lower centre-of-mass energies, the ratio of the measured cross section to the Standard Model expectation is found to be 1.12 -0.10 +0.11 ± 0.03. From all single W data, the WWγ gauge coupling parameter κγ is measured to be 1.116 -0.086 +0.082 ± 0.068.
| Original language | English |
|---|---|
| Pages (from-to) | 151-163 |
| Number of pages | 13 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 547 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - Nov 7 2002 |
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