このエントリーをはてなブックマークに追加
ID 14496
本文ファイル
著者
CP-PACS, Collaboration
Aoki, S
Boyd, G
Burkhalte, R
Hashimoto, S
Ishizuka, N
Iwasaki, Y
Kanaya, K
Kuramashi, Y
Ukawa, A
Yoshié, T
NDC
物理学
抄録(英)
We present progress report of a CP-PACS calculation of quenched QCD spectrum with the Wilson quark action. Light hadron masses and meson decay constants are obtained at β =5.9, 6.1, and 6.25 on lattices with a physical extent of 3 fm, and for the range of quark mass corresponding to mπ/mp ≈ 0.75 – 0.4. Nucleon mass at each β appears to be a convex function of quark mass, and consequently the value at the physical quark mass is much smaller than previously thought. Hadron masses extrapolated to the continuum limit exhibits a significant deviation from experimental values: with K meson mass to fix strange quark mass, strange meson and baryon masses are systematically lower. Light quark masses determined from the axial Ward identity are shown to agree with those from perturbation theory in the continuum limit. Decay constants of mesons are also discussed.
掲載誌名
Nuclear Physics B Proceedings Supplements
60巻
1-2号
開始ページ
14
終了ページ
25
出版年月日
1998
出版者
Elsevier Science B.V.
ISSN
0920-5632
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
Copyright (c) 1998 Elsevier Science B.V.
関連情報URL(IsVersionOf)
http://dx.doi.org/10.1016/S0920-5632(97)00462-3
部局名
理学研究科