{"arxiv_id":"hep-ph/0401041","title":"Three-loop matching of the dipole operators for b -> s gamma and b -> s g","abstract":"We evaluate the three-loop matching conditions for the dimension-five operators that are relevant for the b -> s gamma decay. Our calculation completes the first out of three steps (matching, mixing and matrix elements) that are necessary for finding the next-to-next-to-leading QCD corrections to this process. All such corrections must be calculated in view of the ongoing accurate measurements of the B -> Xs gamma branching ratio.","primary_cat":"hep-ph","cross_cats":[],"submitted_at":"2004-01-08T17:49:50+00:00","latest_version":1,"source":"arxiv","source_label":"arXiv","source_url":null,"has_pdf":true,"has_source":false,"verdict":"ACCEPT","confidence":"HIGH","one_line_summary":"The authors evaluate the three-loop matching conditions for the b -> s gamma and b -> s g dipole operators, finding top-sector coefficients Ct7 = 12.05 +/- 0.05 and Ct8 = -1.2 +/- 0.1 at the top-mass scale.","novelty_score":7.0,"correctness_risk":"low","formal_verification":"none","upvotes":0,"downvotes":0,"pith_score":0,"inbound_count":38,"_links":{"html":"https://pith.science/paper/hep-ph/0401041","verdict":"/api/v1/verdicts/hep-ph/0401041"}}