{"paper":{"title":"Charmonium Spectrum from Quenched Anisotropic Lattice QCD","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-lat","authors_text":"A. Ukawa, CP-PACS Collaboration : M. Okamoto, K-I. Ishikawa, K. Kanaya, K. Nagai, M. Fukugita, M. Okawa, N. Ishizuka, R. Burkhalter, S. Aoki, S. Ejiri, S. Hashimoto, T. Kaneko, T. Yoshi\\'e, V. Lesk, Y. Iwasaki, Y. Kuramashi, Y. Taniguchi","submitted_at":"2001-12-16T22:51:04Z","abstract_excerpt":"We present a detailed study of the charmonium spectrum using anisotropic lattice QCD. We first derive a tree-level improved clover quark action on the anisotropic lattice for arbitrary quark mass. The heavy quark mass dependences of the improvement coefficients, i.e. the ratio of the hopping parameters $\\zeta=K_t/K_s$ and the clover coefficients $c_{s,t}$, are examined at the tree level. We then compute the charmonium spectrum in the quenched approximation employing $\\xi = a_s/a_t = 3$ anisotropic lattices. Simulations are made with the standard anisotropic gauge action and the anisotropic clo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-lat/0112020","kind":"arxiv","version":2},"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"}