UNIGE document Scientific Article
previous document  unige:38068  next document
add to browser collection
Title

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

CollaborationWith : Clark, Allan Geoffrey / D'Onofrio, Monica / Wu, Xin
Published in Physical Review. D. 2004, vol. 70, no. 03, p. 032004
Abstract We present a measurement of the polar-angle distribution of leptons from W boson decay, as a function of the W transverse momentum. The measurement uses an 80±4pb-1 sample of pp¯ collisions at s√=1.8TeV collected by the CDF detector and includes data from both the W⃗ e+ν and W⃗ μ+ν decay channels. We fit the W boson transverse mass distribution to a set of templates from a Monte Carlo event generator and detector simulation in several ranges of the W transverse momentum. The measurement agrees with the standard model expectation, whereby the ratio of longitudinally to transversely polarized W bosons, in the Collins-Soper W rest frame, increases with the W transverse momentum at a rate of approximately 15% per 10GeV/c.
Identifiers
Full text
Structures
Citation
(ISO format)
CDF COLLABORATION. Measurement of the polar-angle distribution of leptons from W boson decay as a function of the W transverse momentum in pp collisions at s√=1.8TeV. In: Physical Review. D, 2004, vol. 70, n° 03, p. 032004. https://archive-ouverte.unige.ch/unige:38068

160 hits

54 downloads

Update

Deposited on : 2014-06-24

Export document
Format :
Citation style :