{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.88284.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1733223"}},{"@id":"https://doi.org/10.1016/j.physletb.2019.135048","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2019","description":"CERN-LHC. The production of W bosons is studied in proton-lead (pPb) collisions at a nucleon-nucleon centre-of-mass energy of $\\sqrt{{s}_\\textrm{NN}} = 8.16$ TeV. Measurements are performed in the $\\textrm{W}^{\\pm}\\to\\mu^{\\pm}\\nu$ channel using a data sample corresponding to an integrated luminosity of $173.4 \\pm 8.7 \\textrm{nb}^{-1}$, collected by the CMS Collaboration at the LHC. The number of positively and negatively charged W bosons is determined separately in the muon pseudorapidity region in the laboratory frame $|\\eta_{\\textrm{lab}}^{\\mu}|<2.4$ and transverse momentum $p_{\\textrm{T}}^{\\mu}>25$~GeV/$c$. The $\\textrm{W}^{\\pm}$ boson differential cross sections, muon charge asymmetry, and the ratios of $\\textrm{W}^{\\pm}$ boson yields for the proton-going over the Pb-going beam directions are reported as a function of the muon pseudorapidity in the nucleon-nucleon centre-of-mass frame. The measurements are compared to the predictions from theoretical calculations based on parton distribution functions (PDFs) at next-to-leading-order. The results favour PDF calculations that include nuclear modifications and provide constraints on the nuclear PDF global fits.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.88284.v1/t1","@type":"Dataset","description":"Muon charge asymmetry, $(N_{\\mu}^{+} - N_{\\mu}^{-})/(N_{\\mu}^{+} + N_{\\mu}^{-})$, as a function of the muon pseudorapidity in the centre-of-mass frame.","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.88284.v1/t2","@type":"Dataset","description":"Differential production cross sections for $\\textrm{pPb} \\to W^{+} + X \\to \\mu^{+} \\nu + X$ for positively charged muons of...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.88284.v1/t3","@type":"Dataset","description":"Differential production cross sections for $\\textrm{pPb} \\to W^{-} + X \\to \\mu^{-} \\bar{\\nu} + X$ for negatively charged muons of...","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.88284.v1/t4","@type":"Dataset","description":"Forward-backward ratio, $N_{\\mu}(+\\eta_{\\textrm{CM}})/N_{\\mu}(-\\eta_{\\textrm{CM}})$, for the negatively charged muons, as a function of the muon pseudorapidity in the centre-of-mass frame.","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.88284.v1/t5","@type":"Dataset","description":"Forward-backward ratio, $N_{\\mu}(+\\eta_{\\textrm{CM}})/N_{\\mu}(-\\eta_{\\textrm{CM}})$, for the positively charged muons, as a function of the muon pseudorapidity in the centre-of-mass frame.","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.88284.v1/t6","@type":"Dataset","description":"Forward-backward ratio, $N_{\\mu}(+\\eta_{\\textrm{CM}})/N_{\\mu}(-\\eta_{\\textrm{CM}})$, for muons of both signs, as a function of the muon pseudorapidity in the centre-of-mass frame.","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.88284.v1/t7","@type":"Dataset","description":"The covariance matrix of the W boson differential cross section measurements. Each bin is labeled mi_i or pl_i, where mi...","name":"Table 7"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1733223?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/88284"}],"inLanguage":"en","name":"Observation of nuclear modifications in W$^\\pm$ boson production in pPb collisions at $\\sqrt{s_\\mathrm{NN}} =$ 8.16 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1733223?version=1","version":1}