| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
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タイトル |
Topological susceptibility in lattice QCD with two flavors of dynamical quarks |
|
言語 |
en |
| 作成者 |
Arifa, Ali Khan
Aoki, Sinya
Burkhalter, Rudolf
Ejiri, Shinji
Fukugita, Masataka
Hashimoto, Shoji
Ishizuka, Naruhito
Iwasaki, Yoichi
Kanaya, Kazuyuki
Kaneko, Takashi
Kuramashi, Yoshinobu
Manke, Thomas
Nagai, Keiichi
Okawa, Masanori
Shanahan, Hugh P.
Ukawa, Akira
Yoshie, Tomoteru
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
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|
権利情報 |
Copyright (c) 2001 American Physical Society. |
| 内容記述 |
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内容記述 |
We present a study of the topological susceptibility in lattice QCD with two degenerate flavors of dynamical quarks. The topological charge is measured on gauge configurations generated with a renormalization group improved gauge action and a mean field improved clover quark action at three values of β=6/g2 with four sea quark masses at each β. The lattice spacings at these β's are a≈0.22, 0.16 and 0.11 fm at the physical up and down quark mass, which are fixed by the physical ρ meson mass. The study is supplemented by simulations of pure SU(3) gauge theory with the same gauge action at 5 values of β with lattice spacings 0.09 fm?a ?0.27 fm. We employ a field-theoretic definition of the topological charge together with cooling. For the topological susceptibility in the continuum limit of pure SU(3) gauge theory we obtain χt1/4= 197-16+13 MeV where the error shows statistical and systematic ones added in quadrature. In full QCD χt at heavy sea quark masses is consistent with that of pure SU(3) gauge theory. A decrease of χt toward light quark masses, as predicted by the anomalous Ward-Takahashi identity for U(1) chiral symmetry, becomes clearer for smaller lattice spacings. The cross over in the behavior of χt from heavy to light sea quark masses is discussed. |
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言語 |
en |
| 出版者 |
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出版者 |
American Physical Society |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 出版タイプ |
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|
出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
10.1103/PhysRevD.64.114501 |
| 関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
http://dx.doi.org/10.1103/PhysRevD.64.114501 |
| 収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1550-7998 |
| 収録物識別子 |
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収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00773624 |
| 開始ページ |
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|
開始ページ |
114501-1 |
| 書誌情報 |
Physical review D
Physical review D
巻 64,
号 11,
p. 114501-1-114501-10,
発行日 2001-10-19
|
| 旧ID |
18657 |
PhysRevD_64_114501.pdf (318.5 KB)
