{"paper":{"title":"How to measure the linear polarization of gluons in unpolarized proton using the heavy-quark pair production","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. V. Efremov, N. Ya. Ivanov, O. V. Teryaev","submitted_at":"2018-12-02T13:57:33Z","abstract_excerpt":"In recent papers [1,2], two new ways have been proposed to probe the linear polarization of gluons in unpolarized proton: using the azimuthal asymmetries and Callan-Gross ratio in heavy-quark pair leptoproduction, $lN\\rightarrow l^{\\prime}Q\\bar{Q}X$. In this talk, we discuss in details the sensitivity of the QCD predictions for the azimuthal $\\cos \\varphi$ and $\\cos 2\\varphi$ asymmetries to the contribution of linearly polarized gluons inside unpolarized proton, where the azimuth $\\varphi$ is the angle between the lepton scattering plane $(l,l^{\\prime})$ and the heavy quark production plane $("},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.00393","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}