{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.83198.v2","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1672941"}},{"@id":"https://doi.org/10.1103/PhysRevLett.121.062002","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2018","description":"The pseudorapidity distributions of dijets as a function of their average transverse momentum ($p_\\mathrm{T}^\\text{ave}$) are measured in proton-lead (pPb) and proton-proton (pp) collisions. The data samples were collected by the CMS experiment at the CERN LHC, at a nucleon-nucleon center-of-mass energy of 5.02 TeV. A significant modification of the pPb spectra with respect to the pp spectra is observed in all $p_\\mathrm{T}^\\text{ave}$ intervals investigated. The ratios of the pPb and pp distributions are compared to next-to-leading order perturbative quantum chromodynamics calculations with unbound nucleon and nuclear parton distribution functions (PDFs). These results give the first evidence that the gluon PDF at large Bjorken $x$ in lead ions is strongly suppressed with respect to the PDF in unbound nucleons.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.83198.v2/t1","@type":"Dataset","description":"The ratio of pPb to pp $\\eta_{\\mathrm{dijet}}$ spectra for dijets in the range $55 < p_{\\mathrm{T}}^{\\mathrm{ave}} < 75$ GeV.","name":"Table 1a"},{"@id":"https://doi.org/10.17182/hepdata.83198.v2/t2","@type":"Dataset","description":"The ratio of pPb to pp $\\eta_{\\mathrm{dijet}}$ spectra for dijets in the range $75 < p_{\\mathrm{T}}^{\\mathrm{ave}} < 95$ GeV.","name":"Table 1b"},{"@id":"https://doi.org/10.17182/hepdata.83198.v2/t3","@type":"Dataset","description":"The ratio of pPb to pp $\\eta_{\\mathrm{dijet}}$ spectra for dijets in the range $95 < p_{\\mathrm{T}}^{\\mathrm{ave}} < 115$ GeV.","name":"Table 1c"},{"@id":"https://doi.org/10.17182/hepdata.83198.v2/t4","@type":"Dataset","description":"The ratio of pPb to pp 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