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Title

Production of single W bosons at LEP

CollaborationWith : Kienzle, Maria-Novella / Burger, William / Extermann, Pierre / Field, John / Bourquin, Maurice / Braccini, Saverio / Fredj, Lotfi / Ambrosi, Giovanni / Produit, Nicolas / Sciarrino, Deborah / Susinno, Gabriele
Published in Physics Letters. B. 1997, vol. 403, p. 168-176
Abstract We report on the observation of single W boson production in a data sample collected by the L3 detector at LEP2. The signal consists of large missing energy final states with a single energetic lepton or two hadronic jets. The cross-section is measured to be 0.61−0.33+0.43 ± 0.05 pb at the centre of mass energy √s = 172 GeV, consistent with the Standard Model expectation. From this measurement the following limits on the anomalo γWW gauge couplingsare derived at 95% CL: −3.6 < Δκγ < 1.5 and −3.6 < λγ < 3.6.
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L3 COLLABORATION. Production of single W bosons at LEP. In: Physics Letters. B, 1997, vol. 403, p. 168-176. https://archive-ouverte.unige.ch/unige:112513

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