{"paper":{"title":"Study of $\\mathbf{\\boldsymbol{D \\rightarrow a_0 (980) e^+ \\nu_e}}$ decay in the light-cone sum rules approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Bin Wei, Hai-Bo Li, Mao-Zhi Yang, Xiao-Dong Cheng, Yu-Guo Xu","submitted_at":"2017-06-04T03:11:47Z","abstract_excerpt":"Within the QCD light-cone sum rule (LCSR) approach, we investigate the transition form factors of $D\\rightarrow a_0(980)$ up to the twist-3 light-cone distribution amplitudes (LCDAs) of the scalar meson $a_0(980)$ in the two-quark picture. Using these form factors, we calculate the differential decay widths and branching ratios of the $D\\rightarrow a_0(980) e^+ \\nu_e$ semileptonic decays. We obtain ${\\mathcal B}(D^0\\rightarrow a_0^- (980) e^+ \\nu_e)=(4.08^{+1.37}_{-1.22})\\times 10^{-4}$ and ${\\mathcal B}(D^+\\rightarrow a_0^0 (980) e^+ \\nu_e)=(5.40^{+1.78}_{-1.59})\\times 10^{-4}$. The results a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.01019","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":""},"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"}