{"paper":{"title":"$a_0(980)$-meson twist-2 distribution amplitude within the QCD sum rules and investigation of $D \\to a_0(980) (\\to\\eta\\pi) e^+\\nu_e$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Dan-Dan Hu, Dong Huang, Hai-Bing Fu, Tao Zhong, Xing-Gang Wu, Zai-Hui Wu","submitted_at":"2022-11-10T07:46:05Z","abstract_excerpt":"In this paper, moments of $a_0(980)$-meson twist-2 light-cone distribution amplitudes were deeply researched by using QCD sum rules approach within background field theory. Up to 9th-order accuracy, we present $\\langle\\xi_{2;a_0}^n\\rangle|_{\\mu_0}$ at the initial scale $\\mu_0 = 1~{\\rm GeV}$, i.e. $\\langle\\xi^1_{2;a_0}\\rangle|_{\\mu_0} = -0.307(43)$, $\\langle\\xi^3_{2;a_0}\\rangle|_{\\mu_0} = -0.181(34)$, $\\langle\\xi^5_{2;a_0}\\rangle|_{\\mu_0} = -0.078(28)$, $\\langle\\xi^7_{2;a_0}\\rangle|_{\\mu_0} = -0.049(26)$, $\\langle\\xi^9_{2;a_0}\\rangle|_{\\mu_0} = -0.036(24)$, respectively. An improved light-cone "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.05390","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2211.05390/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}