{"paper":{"title":"Lattice understanding of the Delta I=1/2 rule & some implications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Amarjit Soni","submitted_at":"2013-11-25T21:00:54Z","abstract_excerpt":"After decades of intensive efforts, lattice methods finally revealed one clear source of the large enhancement of the ratio $Re A_0/Re A_2$ \\cite{RBC_UKQCD_PRL13}, which has been a puzzle in particle physics for about sixty years. Lattice studies of direct $K \\to \\pi \\pi$ in the $I=2$ channel show that in fact this channel clearly suffers from a severe suppression due to a significant cancellation between the two amplitudes for the original, charged current (tree) operator. % [($\\bar s_\\alpha \\gamma_mu (1 - \\gamma_5) u_\\alpha)(\\bar u_\\beta \\gamma_mu(1-gamma_5)d_\\beta$)], One of these amplitude"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.6479","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"}