Acosta, D;
Affolder, T;
Albrow, MG;
Ambrose, D;
Amidei, D;
Anikeev, K;
Antos, J;
... Zucchelli, S; + view all
(2006)
Measurement of the azimuthal angle distribution of leptons from W boson decays as a function of the W transverse momentum in p(p)over-bar collisions at root s = 1.8 TeV.
PHYS REV D
, 73
(5)
, Article 052002. 10.1103/PhysRevD.73.052002.
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Abstract
We present the first measurement of the A(2) and A(3) angular coefficients of the W boson produced in proton-antiproton collisions. We study W -> e nu(e) and W ->mu nu(mu) candidate events produced in association with at least one jet at CDF, during Run Ia and Run Ib of the Tevatron at root 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 alpha(s)(2) in QCD.
| Type: | Article |
|---|---|
| Title: | Measurement of the azimuthal angle distribution of leptons from W boson decays as a function of the W transverse momentum in p(p)over-bar collisions at root s = 1.8 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.73.052002 |
| Keywords: | HADRONIC COLLISIONS, CROSS-SECTIONS, COLLIDERS |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10169 |
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