{"paper":{"title":"Subdominant terms in the production of $c \\bar c$ pairs in proton-proton collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Antoni Szczurek, Marta Luszczak, Rafal Maciula","submitted_at":"2011-09-27T15:16:03Z","abstract_excerpt":"At high-energies the gluon-gluon fusion is the dominant mechanism of $c \\bar c$ production. This process was calculated in the NLO collinear as well as in the k$_t$-factorization approaches in the past. We show that the present knowledge of gluon distributions does not allow to make a precise predictions for $c \\bar c$ production at LHC, in particular at forward rapidities. In this paper we study production of $c \\bar c$ pairs including several subleading mechanisms. This includes: $gg \\to Q \\bar Q$, $\\gamma g \\to Q \\bar Q$, $g \\gamma \\to Q \\bar Q$, $\\gamma \\gamma \\to Q \\bar Q$. In this contex"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.5930","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"}