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Equation of state in finite-temperature QCD with two flavors of improved Wilson quarks
http://hdl.handle.net/2241/89370
http://hdl.handle.net/2241/89370787445eb-5016-4a28-8c66-1f78171bdced
名前 / ファイル | ライセンス | アクション |
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PRD_64-7.pdf (362.6 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2007-05-24 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Equation of state in finite-temperature QCD with two flavors of improved Wilson quarks | |||||
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 |
Khan, A. Ali
× Khan, A. Ali× Aoki, S.× Burkhalter, R.× Ejiri, S.× Fukugita, M.× Hashimoto, S.× Ishizuka, N.× 岩崎, 洋一× Kanaya, K.× Kaneko, T.× Kuramashi, Y.× Manke, T.× Nagai, K.-I.× Okamoto, M.× Okawa, M.× Shanahan, H. P.× Taniguchi, Y.× 宇川, 彰× Yoshie, T. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We present the results of a first study of the equation of state in finite-temperature QCD with two flavors of Wilson-type quarks. The simulations are made on lattices with a temporal size Nt=4 and 6, using a renormalization-group-improved action for the gluon sector and a mean-field-improved clover action for the quark sector. The lines of constant physics corresponding to fixed values of the ratio mPS/mV of the pseudoscalar to vector meson masses at zero temperature are determined, and the beta functions which describe the renormalization-group flow along these lines are calculated. Using these results, the energy density and the pressure are calculated as functions of temperature along the lines of constant physics in the range mPS/mV=0.65-0.95. The quark mass dependence in the equation of state is found to be small for mPS/mV≲0.8. A comparison of the results for Nt=4 and Nt=6 lattices shows a significant scaling violation present in the Nt=4 results. At high temperatures the results for Nt=6 are quite close to the continuum Stefan-Boltzmann limit, suggesting the possibility of a precise continuum extrapolation of thermodynamic quantities from simulations at Nt≳6. | |||||
言語 | en | |||||
書誌情報 |
en : Physical review D 巻 64, 号 7, p. 074510, 発行日 2001-09 |
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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 | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1103/PhysRevD.64.074510 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | (c)2001 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/2241/89370 | |||||
識別子タイプ | HDL |