{"paper":{"title":"Isgur-Wise Function and $V_{cb}$ from Bethe-Salpeter Equations","license":"","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"A.Abd El-Hady, A.J.Sommerer, J.P.Vary, J.Spence, K.S.Gupta","submitted_at":"1994-12-14T03:39:59Z","abstract_excerpt":"We calculate the Isgur-Wise function from the solutions of the Bethe-Salpeter equations. The shape of the Isgur-Wise function thus calculated is a prediction of the Bethe-Salpeter equations and does not depend on undetermined parameters. We develop an analytical approximation to our Isgur-Wise function in the form $\\xi ( \\omega) = \\eta [ 1 - \\frac{{\\rho^2}}{\\eta} (\\omega - 1) + a (\\omega - 1)^{3/2}]$ where $\\rho^2 = 1.279$, $a = .91$, $\\eta = .9942$ and $\\omega$ is the recoil velocity. The Isgur-Wise function is then used to obtain $V_{cb}$ from the recent experimental data of ${\\bar B} \\to D^"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9412293","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"}