ダウンロード数: 194
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
PhysRevD.78.014513.pdf | 287.71 kB | Adobe PDF | 見る/開く |
タイトル: | Lattice QCD study of the heavy-heavy-light quark potential |
著者: | Yamamoto, Arata Suganuma, Hideo Iida, Hideaki |
著者名の別形: | 菅沼, 秀夫 |
発行日: | 25-Jul-2008 |
出版者: | American Physical Society |
誌名: | Physical Review D |
巻: | 78 |
号: | 4 |
論文番号: | 014513 |
抄録: | We study the heavy-heavy-light quark (QQq) potential in SU(3) quenched lattice QCD, and discuss one of the roles of the finite-mass valence quark in the interquark potential. Monte Carlo simulations are performed with the standard gauge action on the 16[4] lattice at β=6.0and the O(a)-improved Wilson fermion action at four hopping parameters. For statistical improvement, the gauge configuration is fixed with the Coulomb gauge. We calculate the potential energy of QQq systems as a function of the inter-heavy-quark distance R in the range of R≤0.8 fm. The QQq potential is well described with a Coulomb plus linear potential, and the effective string tension between the two heavy quarks is significantly smaller than the string tension σ≃0.89 GeV/fm. It would generally hold that the effect of the finite-mass valence quark reduces the inter-two-quark confinement force in baryons. |
著作権等: | © 2008 American Physical Society |
URI: | http://hdl.handle.net/2433/198857 |
DOI(出版社版): | 10.1103/PhysRevD.78.014513 |
出現コレクション: | 学術雑誌掲載論文等 |
このリポジトリに保管されているアイテムはすべて著作権により保護されています。