{"paper":{"title":"Evidence for hard chiral logarithms in quenched lattice QCD","license":"","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"D.K.Sinclair, Seyong Kim","submitted_at":"1995-02-03T22:49:25Z","abstract_excerpt":"We present the first direct evidence that quenched QCD differs from full QCD in the chiral ($m_q \\rightarrow 0$) limit, as predicted by chiral perturbation theory, from our quenched lattice QCD simulations at $\\beta = 6/g^2 = 6.0$. We measured the spectrum of light hadrons on $16^3 \\times 64$, $24^3 \\times 64$ and $32^3 \\times 64$, using staggered quarks of masses $m_q=0.01$, $m_q=0.005$ and $m_q=0.0025$. The pion masses showed clear evidence for logarithmic violations of the PCAC relation $m_{\\pi}^2 \\propto m_q$, as predicted by quenched chiral perturbation theory. The dependence on spatial l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-lat/9502004","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"}