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Measurement of the azimuthal angle distribution of leptons from W boson decays as a function of the W transverse momentum in pp collisions at s√=1.8  TeV

Contributeurs/tricesCDF Collaboration
Date de publication2006
Résumé

We present the first measurement of the A2 and A3 angular coefficients of the W boson produced in proton-antiproton collisions. We study W→eνe and W→μνμ candidate events produced in association with at least one jet at CDF, during Run Ia and Run Ib of the Tevatron at s√=1.8  TeV. The corresponding integrated luminosity was 110  pb−1. The jet balances the transverse momentum of the W and introduces QCD effects in W boson production. The extraction of the angular coefficients is achieved through the direct measurement of the azimuthal angle of the charged lepton in the Collins-Soper rest-frame of the W boson. The angular coefficients are measured as a function of the transverse momentum of the W boson. The electron, muon, and combined results are in good agreement with the standard model prediction, up to order α2s in QCD

Citation (format ISO)
CDF Collaboration. Measurement of the azimuthal angle distribution of leptons from <em>W</em> boson decays as a function of the <em>W</em> transverse momentum in <em>pp</em> collisions at s√=1.8  TeV. In: Physical review. D. Particles, fields, gravitation, and cosmology, 2006, vol. 73, n° 05, p. 052002. doi: 10.1103/PhysRevD.73.052002
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Article (Published version)
accessLevelPublic
Identifiants
ISSN du journal1550-2368
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Informations techniques

Création30/06/2014 16:26:00
Première validation30/06/2014 16:26:00
Heure de mise à jour14/03/2023 21:24:43
Changement de statut14/03/2023 21:24:43
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