{"paper":{"title":"Physical Results from 2+1 Flavor Domain Wall QCD and SU(2) Chiral Perturbation Theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"A.D. Kennedy, A. Hart, A. Juttner, A. Soni, B.J. Pendleton, C. Allton, C. Dawson, C. Jung, C.M. Maynard, C.T. Sachrajda, D.J. Antonio, E.E. Scholz, J.M. Flynn, J.M. Zanotti (for the RBC-UKQCD Collaborations), J. Wennekers, M.A. Clark, M.A. Donnellan, M.F. Lin, M. Li, N.H. Christ, P.A. Boyle, R.D. Kenway, R.D. Mawhinney, R.J. Tweedie, S.D. Cohen, S. Li, S. Ohta, S. Sasaki, T. Blum, T. Izubuchi, T. Yamazaki, Y. Aoki","submitted_at":"2008-04-03T05:32:52Z","abstract_excerpt":"We have simulated QCD using 2+1 flavors of domain wall quarks on a $(2.74 {\\rm fm})^3$ volume with an inverse lattice scale of $a^{-1} = 1.729(28)$ GeV. The up and down (light) quarks are degenerate in our calculations and we have used four values for the ratio of light quark masses to the strange (heavy) quark mass in our simulations: 0.217, 0.350, 0.617 and 0.884. We have measured pseudoscalar meson masses and decay constants, the kaon bag parameter $B_K$ and vector meson couplings. We have used SU(2) chiral perturbation theory, which assumes only the up and down quark masses are small, and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0804.0473","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0804.0473/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}