{"paper":{"title":"Pion parton distribution functions and pion-nucleus induced $J/\\psi$ production in extended light-front holographic QCD","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Pion PDFs from combined holographic and 't Hooft light-front wave functions, used with nuclear PDFs, produce NLO cross sections for J/ψ production in pion-nucleus collisions that match experimental data.","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Chandan Mondal, Jiangshan Lan, Satvir Kaur","submitted_at":"2026-05-13T12:16:58Z","abstract_excerpt":"We determine the pion parton distribution functions (PDFs) from its light-front wave functions, obtained using the holographic Schr\\\"odinger equation of light-front chiral QCD combined with the 't Hooft equation in (1+1)-dimensional QCD at large $N_c$. We analyze the large-$x$ behavior of the valence PDF, $\\sim (1-x)^{\\beta^{\\rm eff}_v}$, finding overall consistency with global analyses. These pion PDFs, together with nuclear PDFs, are then used to compute the differential cross sections up to next-to-leading order for inclusive $J/\\psi$ production in pion--nucleus collisions, which show good "},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"These pion PDFs, together with nuclear PDFs, are then used to compute the differential cross sections up to next-to-leading order for inclusive J/ψ production in pion-nucleus collisions, which show good agreement with experimental data across different energies and nuclear targets.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The light-front wave functions obtained from the holographic Schrödinger equation of light-front chiral QCD combined with the 't Hooft equation in (1+1)-dimensional QCD at large Nc accurately determine the pion PDFs.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Pion PDFs from holographic light-front QCD are consistent with global analyses and produce J/ψ cross sections matching experimental data across energies and targets.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Pion PDFs from combined holographic and 't Hooft light-front wave functions, used with nuclear PDFs, produce NLO cross sections for J/ψ production in pion-nucleus collisions that match experimental data.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"a6a783e729b7fcfc77b932aff6ac00fb5fa1e0dece45367ffe0ec24309a52f39"},"source":{"id":"2605.13422","kind":"arxiv","version":2},"verdict":{"id":"d01a3d30-a284-4f5f-836c-258876d98c6e","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-15T02:53:49.483574Z","strongest_claim":"These pion PDFs, together with nuclear PDFs, are then used to compute the differential cross sections up to next-to-leading order for inclusive J/ψ production in pion-nucleus collisions, which show good agreement with experimental data across different energies and nuclear targets.","one_line_summary":"Pion PDFs from holographic light-front QCD are consistent with global analyses and produce J/ψ cross sections matching experimental data across energies and targets.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The light-front wave functions obtained from the holographic Schrödinger equation of light-front chiral QCD combined with the 't Hooft equation in (1+1)-dimensional QCD at large Nc accurately determine the pion PDFs.","pith_extraction_headline":"Pion PDFs from combined holographic and 't Hooft light-front wave functions, used with nuclear PDFs, produce NLO cross sections for J/ψ production in pion-nucleus collisions that match experimental data."},"references":{"count":88,"sample":[{"doi":"","year":1978,"title":"C. G. Callan, Jr., R. F. Dashen, and D. J. Gross, Phys. Rev. D17, 2717 (1978)","work_id":"4fa7e683-1fc8-47e7-8611-c3a7215fc403","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1961,"title":"Y. Nambu and G. Jona-Lasinio, Phys. Rev.124, 246 (1961)","work_id":"b619b298-6f01-408b-9e12-489ace146fb7","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1961,"title":"Y. Nambu and G. Jona-Lasinio, Phys. Rev.122, 345 (1961)","work_id":"0f02b0c4-5d08-4c5a-b31f-e8936f00e465","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1992,"title":"P. J. Sutton, A. D. Martin, R. G. Roberts, and W. J. Stirling, Phys. Rev. D45, 2349 (1992)","work_id":"368486e1-b935-4182-88eb-3528d68bd1ae","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1999,"title":"Pionic Parton Distributions Revisited","work_id":"5610d1aa-3d65-464a-9601-8f34f41efa04","ref_index":5,"cited_arxiv_id":"hep-ph/9903288","is_internal_anchor":true}],"resolved_work":88,"snapshot_sha256":"403c32d158afb748981684323df62d5c4a26110805618fd7cd2b5bd606e90136","internal_anchors":26},"formal_canon":{"evidence_count":2,"snapshot_sha256":"1b6889c0d58078453fcee8a329d695f7956a944795c42be3fb7d7daaf8346625"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}