{"paper":{"title":"The $\\rho$-meson longitudinal leading-twist distribution amplitude","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Hai-Bing Fu, Huan-Yu Bi, Hua-Yong Han, Xing-Gang Wu, Yang Ma","submitted_at":"2014-09-10T13:06:58Z","abstract_excerpt":"In the present paper, we suggest a convenient model for the vector $\\rho$-meson longitudinal leading-twist distribution amplitude $\\phi_{2;\\rho}^\\|$, whose distribution is controlled by a single parameter $B^\\|_{2;\\rho}$. By choosing proper chiral current in the correlator, we obtain new light-cone sum rules (LCSR) for the $B\\to\\rho$ TFFs $A_1$, $A_2$ and $V$, in which the $\\delta^1$-order $\\phi_{2;\\rho}^\\|$ provides dominant contributions. Then we make a detailed discussion on the $\\phi_{2;\\rho}^\\|$ properties via those $B\\to\\rho$ TFFs. A proper choice of $B^\\|_{2;\\rho}$ can make all the TFFs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.3053","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"}