{"paper":{"title":"Calculation of 1/m^{2}_{b} corrections to <\\Lambda_{b}(v,s)|\\bar{b}\\gamma^{\\lambda}\\gamma_{5}b|\\Lambda_{b}(v,s)> for polarized \\Lambda_{b} in the Bethe-Salpeter equation approach","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"L. Zhang, X.-H. Guo","submitted_at":"2013-05-06T03:40:03Z","abstract_excerpt":"The heavy baryon \\Lambda_{Q} (Q=b or c) can be regarded as composed of a heavy quark and a scalar light diquark which has good spin and isospin quantum numbers. In this picture we establish the Bethe-Salpeter (BS) equation for \\Lambda_{Q} to second order in the 1/m_{Q} expansion. With the kernel containing both the scalar confinement and the one-gluon-exchange terms we solve the BS equation numerically. The value of the spin-dependant form factor for the matrix element <\\Lambda_{b}{(v,s)}|\\bar{b}\\gamma^{\\lambda}\\gamma_{5}b|\\Lambda_{b}(v,s)>, \\epsilon_{b}, which is non-zero at order 1/m^{2}_{b}"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.1078","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"}