{"paper":{"title":"Transition form factors and light-cone distribution amplitudes of pseudoscalar mesons in the chiral quark model","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. E. Dorokhov, M. K. Volkov, V. L. Yudichev","submitted_at":"2002-03-14T16:55:13Z","abstract_excerpt":"It is shown that a chiral quark model of the Nambu--Jona-Lasinio type can be used to describe \"soft\"-momenta parts of the amplitudes with large momentum transfer. As a sample, the processes \\gamma^* --> \\gamma (\\pi,\\eta,\\eta') where one of the photons, \\gamma^*, has large space-like virtuality is investigated. The \\gamma^* --> \\gamma (\\pi,\\eta,\\eta')$ transition form factors are calculated for a wide region of transferred momenta. The results are consistent with the calculations performed in the instanton-induced chiral quark model and agree with experimental data. The distribution amplitudes "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0203136","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"}