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Flavor singlet meson mass in the continuum limit in two-flavor lattice QCD
http://hdl.handle.net/2241/89326
http://hdl.handle.net/2241/893260719b592-75e5-48d4-a67a-866b1a58dc56
名前 / ファイル | ライセンス | アクション |
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PRD_67-7.pdf (116.7 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2007-05-21 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Flavor singlet meson mass in the continuum limit in two-flavor lattice QCD | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
著者 |
Lesk, V. I.
× Lesk, V. I.× Aoki, S.× Burkhalter, R.× Fukugita, M.× Ishikawa, K.-I.× Ishizuka, N.× 岩崎, 洋一× Kanaya, K.× Kuramashi, Y.× Okawa, M.× Taniguchi, Y.× 宇川, 彰× Umeda, T.× Yoshie, T. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We present results for the mass of the η′ meson in the continuum limit for two-flavor lattice QCD, calculated on the CP-PACS computer, using a renormalization-group-improved gauge action, and the Sheikoleslami-Wohlert fermion action with a tadpole-improved csw. The correlation functions are measured at three values of the coupling β corresponding to the lattice spacing a≈0.22, 0.16, 0.11 fm and for four values of the quark mass parameter κ corresponding to mπ/mρ≈0.8, 0.75, 0.7, 0.6. For each (β, κ) pair, 400?800 gauge configurations are used. The two-loop diagrams are evaluated using a noisy source method. We calculate η′ propagators using both smeared and local sources, and find that excited state contaminations are much reduced by smearing. A full analysis for the smeared propagators gives mη′=0.960(87)-0.248+0.036 GeV in the continuum limit, where the second error represents the systematic uncertainty coming from varying the functional form for chiral and continuum extrapolations. | |||||
言語 | en | |||||
書誌情報 |
en : Physical review D 巻 67, 号 7, p. 074503, 発行日 2003-04 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 2470-0010 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00773624 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1103/PhysRevD.67.074503 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | (c) 2003 The American Physical Society | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | American Physical Society | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2241/89326 | |||||
識別子タイプ | HDL |