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End Point of a First-Order Phase Transition in Many-Flavor Lattice QCD at Finite Temperature and Density
http://hdl.handle.net/10191/30391
http://hdl.handle.net/10191/3039109e151a4-0804-4a81-ad8d-af4f3f6b3087
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
110_172001.pdf (390.0 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-11-17 | |||||
| タイトル | ||||||
| タイトル | End Point of a First-Order Phase Transition in Many-Flavor Lattice QCD at Finite Temperature and Density | |||||
| タイトル | ||||||
| タイトル | End Point of a First-Order Phase Transition in Many-Flavor Lattice QCD at Finite Temperature and Density | |||||
| 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 |
Ejiri, Shinji
× Ejiri, Shinji× Yamada, Norikazu |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Towards the feasibility study of the electroweak baryogenesis in realistic technicolor scenario, we investigate the phase structure of (2+Nf)-flavor QCD, where the mass of two flavors is fixed to a small value and the others are heavy. For the baryogenesis, an appearance of a first-order phase transition at finite temperature is a necessary condition. Using a set of configurations of two-flavor lattice QCD and applying the reweighting method, the effective potential defined by the probability distribution function of the plaquette is calculated in the presence of additional many heavy flavors. Through the shape of the effective potential, we determine the critical mass of heavy flavors separating the first-order and crossover regions and find it to become larger with Nf. We moreover study the critical line at finite density and the first-order region is found to become wider as increasing the chemical potential. Possible applications to real (2+1)-flavor QCD are discussed. | |||||
| 書誌情報 |
Physical Review Letters en : Physical Review Letters 巻 110, 号 172001, p. 1-5, 発行日 2013-04 |
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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 | 00319007 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA00773679 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1103/PhysRevLett.110.172001 | |||||
| 権利 | ||||||
| 権利情報 | Copyright(C)2013 American Physical Society | |||||
| 著者版フラグ | ||||||
| 値 | publisher | |||||
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Cite as
Ejiri, Shinji, Yamada, Norikazu, 2013, End Point of a First-Order Phase Transition in Many-Flavor Lattice QCD at Finite Temperature and Density: American Physical Society, 1–5 p.
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