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  1. 050 理学部
  2. 10 学術雑誌論文
  3. 10 査読済論文
  1. 0 資料タイプ別
  2. 01 学術雑誌論文

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/10191/30391
09e151a4-0804-4a81-ad8d-af4f3f6b3087
名前 / ファイル ライセンス アクション
110_172001.pdf 110_172001.pdf (390.0 kB)
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
言語 en
タイトル End Point of a First-Order Phase Transition in Many-Flavor Lattice QCD at Finite Temperature and Density
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

WEKO 37445

Ejiri, Shinji

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Yamada, Norikazu

× Yamada, Norikazu

WEKO 37446

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
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
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