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Equation of state in finite-temperature QCD with two flavors of improved Wilson quarks
http://hdl.handle.net/10191/27650
http://hdl.handle.net/10191/2765032b50514-52d3-482a-aa26-e796f0efe710
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
64_7_074510.pdf (362.6 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2014-06-23 | |||||
| タイトル | ||||||
| タイトル | Equation of state in finite-temperature QCD with two flavors of improved Wilson quarks | |||||
| タイトル | ||||||
| タイトル | Equation of state in finite-temperature QCD with two flavors of improved Wilson quarks | |||||
| 言語 | en | |||||
| 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 | |||||
| 著者 |
Khan, A.Ali
× Khan, A.Ali× Aoki, S.× Burkhalter, R.× Ejiri, S.× Fukugita, M.× Hashimoto, S.× Ishizuka, N.× Iwasaki, Y.× Kanaya, K.× Kaneko, T.× Kuramashi, Y.× Manke, T.× Nagai, K.I.× Okamoto, M.× Okawa, M.× Shanahan, H.P.× Taniguchi, Y.× Ukawa, A.× Yoshie, T.× CP-PACS, Collaboration |
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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 N t =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 m PS /m V 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 m PS /m V =0.65–0.95. The quark mass dependence in the equation of state is found to be small for m PS /m V ≲0.8. A comparison of the results for N t =4 and N t =6 lattices shows a significant scaling violation present in the N t =4 results. At high temperatures the results for N t =6 are quite close to the continuum Stefan-Boltzmann limit, suggesting the possibility of a precise continuum extrapolation of thermodynamic quantities from simulations at N t ≳6. | |||||
| 書誌情報 |
Physical Review D en : Physical Review D 巻 64, 号 7, p. 074510, 発行日 2001-09 |
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| 出版者 | ||||||
| 出版者 | American Physical Society | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 15507998 | |||||
| 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 | info:doi/10.1103/PhysRevD.64.074510 | |||||
| 権利 | ||||||
| 権利情報 | (C) 2001 American Physical Society | |||||
| 著者版フラグ | ||||||
| 値 | publisher | |||||
