{"paper":{"title":"Quenched twisted mass QCD at small quark masses and in large volume","license":"","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"J. Heitger (Univ. of Muenster), M. Della Morte (Univ. of Milano Bicocca), R. Frezzotti (Univ. of Milano Bicocca)","submitted_at":"2001-10-19T08:47:51Z","abstract_excerpt":"As a test of quenched lattice twisted mass QCD, we compute the non-perturbatively O($a$) improved pseudoscalar and vector meson masses and the pseudoscalar decay constant down to $M_{\\rm PS}/M_{\\rm V} = 0.467(13)$ at $\\beta=6$ in large volume. We check the absence of exceptional configurations and -- by further data at $\\beta=6.2$ -- the size of scaling violations. The CPU time cost for reaching a given accuracy is close to that with ordinary Wilson quarks at $M_{\\rm PS}/M_{\\rm V} \\simeq 0.6$ and grows smoothly as $M_{\\rm PS}/M_{\\rm V}$ decreases."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-lat/0110166","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"}