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Study of spin and decay-plane correlations of W bosons in the e+e -> W+W- process at LEP

CollaborationWith : Achard, Pablo / Bourquin, Maurice / Braccini, Saverio / Chamizo Llatas, Maria / Deglon, Patrick / Delmeire, Evelyne / Echenard, Bertrand / Extermann, Pierre / Field, John / Kienzle, Maria-Novella / Malgeri, Luca / Natale, Sonia / Pohl, Martin / Straessner, Arno
Published in European Physical Journal. C. 2005, vol. 40, no. 3, p. 333-341
Abstract Data collected at LEP at centre-of-mass energies s√=189−209 GeV are used to study correlations of the spin of W bosons using e+e−→W+W−→ℓνqq events. Spin correlations are favoured by data, and found to agree with the Standard Model predictions. In addition, correlations between the W-boson decay planes are studied in e+e−→W+W−→ℓνqq and e+e−→W+W−→qqqq events. Decay-plane correlations are measured to be consistent with the Standard Model predictions.
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L3 COLLABORATION. Study of spin and decay-plane correlations of W bosons in the e+e -> W+W- process at LEP. In: European Physical Journal. C, 2005, vol. 40, n° 3, p. 333-341. https://archive-ouverte.unige.ch/unige:42590

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Deposited on : 2014-12-05

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