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Charm quark system at the physical point of 2+1 flavor lattice QCD
http://hdl.handle.net/2241/114757
http://hdl.handle.net/2241/114757c93e2457-a7e1-46ab-b3d6-4b59322adfef
名前 / ファイル | ライセンス | アクション |
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PRD_84-07.pdf (487.9 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2011-12-09 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Charm quark system at the physical point of 2+1 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 |
Namekawa, Y.
× Namekawa, Y.× Aoki, S.× Ishikawa, K. -I.× Ishizuka, N.× Izubuchi, T.× Kanaya, K.× Kuramashi, Y.× Okawa, M.× Taniguchi, Y.× Ukawa, A.× Ukita, N.× Yoshie, T. |
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著者別名 |
滑川, 裕介
× 滑川, 裕介× 青木, 愼也× 石塚, 成人× 金谷, 和至× 藏増, 嘉伸× 谷口, 裕介× 宇川, 彰× 吉江, 友照 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We investigate the charm quark system using the relativistic heavy quark action on 2+1 flavor PACS-CS configurations previously generated on 323×64 lattice. The dynamical up, down, and strange quark masses are set to the physical values by using the technique of reweighting to shift the quark-hopping parameters from the values employed in the configuration generation. At the physical point, the lattice spacing equals a-1=2.194(10)??GeV and the spatial extent L=2.88(1)??fm. The charm quark mass is determined by the spin-averaged mass of the 1S charmonium state, from which we obtain mcharmMS? (μ=mcharmMS? )=1.260(1)(6)(35)??GeV, where the errors are due to our statistics, scale determination and renormalization factor. An additional systematic error from the heavy quark is of order αs2f(mQa)(aΛQCD), f(mQa)(aΛQCD)2, which are estimated to be a percent level if the factor f(mQa) analytic in mQa is of order unity. Our results for the charmed and charmed-strange meson decay constants are fD=226(6)(1)(5)??MeV, fDs=257(2)(1)(5)??MeV, again up to the heavy quark errors of order αs2f(mQa)(aΛQCD), f(mQa)(aΛQCD)2. Combined with the CLEO values for the leptonic decay widths, these values yield | |||||
言語 | en | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Vcd | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | =0.205(6)(1)(5)(9), | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Vcs | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | =1.00(1)(1)(3)(3), where the last error is because of the experimental uncertainty of the decay widths. | |||||
書誌情報 |
en : Physical review D 巻 84, 号 7, p. 074505, 発行日 2011-10 |
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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.84.074505 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | c 2011 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/2241/114757 | |||||
識別子タイプ | HDL |