{"paper":{"title":"Light-front dynamic analysis of transition form factors in the process of $P\\to V\\ell\\nu_{\\ell}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Chueng-Ryong Ji (North Carolina State University), Ho-Meoyng Choi (Kyungpook National University)","submitted_at":"2010-07-15T08:26:00Z","abstract_excerpt":"We investigate the light-front zero-mode contribution to the weak transition form factors between pseudoscalar and vector mesons using a covariant fermion field theory model in $(3+1)$ dimensions. In particular, we discuss the form factors $a_-(q^2)$ and $f(q^2)$ which have been suspected to have the zero-mode contribution in the $q^+=0$ frame. While the zero-mode contribution in principle depends on the form of the vector meson vertex $\\Gamma^\\mu=\\gamma^\\mu - (2k-P_V)^\\mu/D$, the form factor $f(q^2)$ is found to be free from the zero mode if the denominator $D$ contains the term proportional "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.2502","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"}