@Article{ATLASCollaborationAad_etal2014,
author="ATLAS Collaboration (Aad, G. et al
and Cabrera Urban, S.
and Castillo Gimenez, V.
and Costa, M. J.
and Fassi, F.
and Ferrer, A.
and Fiorini, L.
and Fuster, J.
and Garcia, C.
and Garcia Navarro, J. E.
and Gonzalez de la Hoz, S.
and Hernandez Jimenez, Y.
and Higon-Rodriguez, E.
and Irles Quiles, A.
and Kaci, M.
and King, M.
and Lacasta, C.
and Lacuesta, V. R.
and March, L.
and Marti-Garcia, S.
and Mi{\~A}{\textpm}ano, M.
and Mitsou, V. A.
and Moles-Valls, R.
and Oliver Garcia, E.
and Pedraza Lopez, S.
and Perez Garcia-Esta{\~A}{\textpm}, M. T.
and Romero Adam, E.
and Ros, E.
and Salt, J.
and Sanchez Martinez, V.
and Soldevila, U.
and Sanchez, J.
and Torro Pastor, E.
and Valero, A.
and Valladolid Gallego, E.
and Valls Ferrer, J. A.
and Villaplana Perez, M.
and Vos, M.",
title="Measurement of the production of a W boson in association with a charm quark in pp collisions at root s=7 TeV with the ATLAS detector",
journal="Journal of High Energy Physics",
year="2014",
publisher="Springer",
volume="05",
number="5",
pages="068--67pp",
optkeywords="Electroweak interaction; Hadron-Hadron Scattering; Charm physics",
abstract="The production of a W boson in association with a single charm quark is studied using 4.6 fb(-1) of pp collision data at root s = 7 TeV collected with the ATLAS detector at the Large Hadron Collider. In events in which a W boson decays to an electron or muon, the charm quark is tagged either by its semileptonic decay to a muon or by the presence of a charmed meson. The integrated and differential cross sections as a function of the pseudorapidity of the lepton from the W-boson decay are measured. Results are compared to the predictions of next-to-leading-order QCD calculations obtained from various parton distribution function parameterisations. The ratio of the strange-to-down sea-quark distributions is determined to be 0.96(-0.30)(+0.26) at Q (2) = 1.9 GeV2, which supports the hypothesis of an SU(3)-symmetric composition of the light-quark sea. Additionally, the cross-section ratio sigma(W (+) +)/sigma(W (-) + c) is compared to the predictions obtained using parton distribution function parameterisations with different assumptions about the s-(s) over bar quark asymmetry.",
optnote="WOS:000336799600001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1811), last updated on Thu, 26 Jun 2014 12:10:13 +0000",
issn="1029-8479",
doi="10.1007/JHEP05(2014)068",
opturl="http://arxiv.org/abs/arXiv:1402.6263",
opturl="https://doi.org/10.1007/JHEP05(2014)068",
archivePrefix="arXiv",
eprint="arXiv:1402.6263",
language="English"
}