{"paper":{"title":"B -> Xs\\gamma constraints on the top quark anomalous t-> c\\gamma coupling","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Xing-Bo Yuan, Ya-Dong Yang, Yang Hao","submitted_at":"2010-10-10T11:40:44Z","abstract_excerpt":"Observation of top quark flavor changing neutral process $t\\to c +\\gamma$ at the LHC would be the signal of physics beyond the Standard Model. If anomalous $t\\to c\\gamma$ coupling exists, it will affect the precisely measured $\\mathcal{B}(\\bar{B} \\to X_s \\gamma)$. In this paper, we study the effects of a dimension 5 anomalous $ tc \\gamma$ operator in $\\bar{B} \\to X_s \\gamma$ decay to derive constraints on its possible strength. It is found that, for real anomalous $t\\to c\\gamma$ coupling $\\kappa_{\\rm{tcR}}^\\gamma$, the constraints correspond to the upper bounds $\\mathcal B (t \\to c + \\gamma)<6"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.1912","kind":"arxiv","version":4},"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"}