Volume dependence of the long-range two-body potentials in various color channels by lattice QCD

Physical Review D - Particles, Fields, Gravitation and Cosmology 77 巻 3 号 34015- 頁 2008-02 発行
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タイトル ( eng )
Volume dependence of the long-range two-body potentials in various color channels by lattice QCD
作成者
Nakagawa Y.
Saito T.
Toki H.
収録物名
Physical Review D - Particles, Fields, Gravitation and Cosmology
77
3
開始ページ 34015
抄録
We study the color-dependent confining forces between two quarks by the quenched lattice simulations of Coulomb gauge QCD. The color-singlet and color-antitriplet instantaneous potentials yield attractive forces. The ratio of the string tensions obtained from them is approximately 2, and these tensions have little volume dependence. Meanwhile the color-octet and color-sextet channels give a minor contribution to the two-quark system. We finally find that the infrared self-energy of the color-nonsinglet channels diverges in the infinite volume limit; however, the degree of the divergence on the finite lattice can be understood in terms of color factors.
NDC分類
物理学 [ 420 ]
言語
英語
資源タイプ 学術雑誌論文
出版者
The American Physical Society
発行日 2008-02
権利情報
Copyright (c) 2008 The American Physical Society
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 1550-7998
[DOI] 10.1103/PhysRevD.77.034015
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.77.034015