{"paper":{"title":"Recent progress in calculation of $B_K$ using staggered fermions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"Boram Yoon, Chulwoo Jung, Hwancheol Jeong, Hyung-Jin Kim, Jaehoon Leem, Jangho Kim, Jongjeong Kim, Kwangwoo Kim, Seonghee Kim, Stephen R. Sharpe, Taegil Bae, the SWME Collaboration, Weonjong Lee, Yong-Chull Jang","submitted_at":"2012-11-07T13:38:21Z","abstract_excerpt":"We report on recent progress in the calculation of $B_K$ using HYP-smeared improved staggered fermions on the MILC asqtad lattices. We have added measurements on fine ($a\\sim 0.09 $fm) and superfine ($a\\sim 0.06 $fm) ensembles at different values of the light sea quark mass ($a m_\\ell$), as well as increased the statistics on some other ensembles. We find that the results on the fine lattices show a significantly stronger $am_\\ell$ dependence than those on the superfine and coarse ($a\\sim 0.12 $fm) lattices. We discuss different methods for accounting for these new results when doing the $a m_"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.1545","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"}