ログイン
言語:

WEKO3

  • トップ
  • ランキング
To

Field does not validate

To

Field does not validate

To
lat lon distance


インデックスリンク

インデックスツリー

  • RootNode

メールアドレスを入力してください。

WEKO

One fine body…

WEKO

One fine body…

アイテム

  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

Light hadron spectrum and quark masses from quenched lattice QCD

http://hdl.handle.net/10191/27655
http://hdl.handle.net/10191/27655
af3963b5-ad3b-4606-a328-4adbe04294e8
名前 / ファイル ライセンス アクション
67_3_034503.pdf 67_3_034503.pdf (598.4 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2014-06-23
タイトル
タイトル Light hadron spectrum and quark masses from quenched lattice QCD
タイトル
タイトル Light hadron spectrum and quark masses from quenched lattice QCD
言語 en
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 Aoki, S.

× Aoki, S.

WEKO 16453

Aoki, S.

Search repository
Boyd, G.

× Boyd, G.

WEKO 16454

Boyd, G.

Search repository
Burkhalter, R.

× Burkhalter, R.

WEKO 16455

Burkhalter, R.

Search repository
Ejiri, S.

× Ejiri, S.

WEKO 16456

Ejiri, S.

Search repository
Fukugita, M.

× Fukugita, M.

WEKO 16457

Fukugita, M.

Search repository
Hashimoto, S.

× Hashimoto, S.

WEKO 16458

Hashimoto, S.

Search repository
Iwasaki, Y.

× Iwasaki, Y.

WEKO 16459

Iwasaki, Y.

Search repository
Kanaya, K.

× Kanaya, K.

WEKO 16460

Kanaya, K.

Search repository
Kaneko, T.

× Kaneko, T.

WEKO 16461

Kaneko, T.

Search repository
Kuramashi, Y.

× Kuramashi, Y.

WEKO 16462

Kuramashi, Y.

Search repository
Nagai, K.

× Nagai, K.

WEKO 16463

Nagai, K.

Search repository
Okawa, M.

× Okawa, M.

WEKO 16464

Okawa, M.

Search repository
Shanahan, H.P.

× Shanahan, H.P.

WEKO 16465

Shanahan, H.P.

Search repository
Ukawa, A.

× Ukawa, A.

WEKO 16466

Ukawa, A.

Search repository
Yoshie, T.

× Yoshie, T.

WEKO 16467

Yoshie, T.

Search repository
抄録
内容記述タイプ Abstract
内容記述 We present the details of simulations for the light hadron spectrum in quenched QCD carried out on the CP-PACS parallel computer. Simulations are made with the Wilson quark action and the plaquette gauge action on lattices of size 32 3 ×56–64 3 ×112 at four values of lattice spacings in the range a≈0.1–0.05fm and spatial extent L s a≈3fm. Hadronic observables are calculated at five quark masses corresponding to m PS /m V ≈0.75–0.4, assuming the u and d quarks are degenerate, but treating the s quark separately. We find that the presence of quenched chiral singularities is supported from an analysis of the pseudoscalar meson data. The physical values of hadron masses are determined using m π , m ρ , and m K (or m φ ) as input to fix the physical scale of lattice spacing and the u, d, and s quark masses. After chiral and continuum extrapolations, the agreement of the calculated mass spectrum with experiment is at a 10% level. In comparison with the statistical accuracy of 1%–3% and systematic errors of at most 1.7% we have achieved, this demonstrates a failure of the quenched approximation for the hadron spectrum: the hyperfine splitting in the meson sector is too small, and in the baryon sector the octet masses and mass splitting of the decuplet are both smaller than experiment. Light quark masses are calculated using two definitions: the conventional one and the one based on the axial-vector Ward identity. The two results converge toward the continuum limit, yielding m ud =4.29(14) +0.51 -0.79 MeV where the first error is statistical and the second one is systematic due to chiral extrapolation. The s quark mass depends on the strange hadron mass chosen for input: m s =113.8(2.3) +5.8 -2.9 MeV from m K and m s =142.3(5.8) +22.0 -0 MeV from m φ , indicating again a failure of the quenched approximation. We obtain the scale of QCD, Λ (0) MS ¯ =219.5(5.4)MeV with m ρ used as input. An O(10%) deviation from experiment is observed in the pseudoscalar meson decay constants.
書誌情報 Physical Review D
en : Physical Review D

巻 67, 号 3, p. 034503, 発行日 2003-02
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 15507998
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA00773624
DOI
識別子タイプ DOI
関連識別子 info:doi/10.1103/PhysRevD.67.034503
権利
権利情報 (C) 2003 American Physical Society
著者版フラグ
値 publisher
戻る
0
views
See details
Views

Versions

Ver.1 2021-03-01 20:38:01.279807
Show All versions

Share

Mendeley Twitter Facebook Print Addthis

Cite as

Aoki, S., Boyd, G., Burkhalter, R., Ejiri, S., Fukugita, M., Hashimoto, S., Iwasaki, Y., Kanaya, K., Kaneko, T., Kuramashi, Y., Nagai, K., Okawa, M., Shanahan, H.P., Ukawa, A., Yoshie, T., 2003, Light hadron spectrum and quark masses from quenched lattice QCD: American Physical Society, 034503– p.

Loading...

エクスポート

OAI-PMH
  • OAI-PMH JPCOAR 2.0
  • OAI-PMH JPCOAR 1.0
  • OAI-PMH DublinCore
  • OAI-PMH DDI
Other Formats
  • JSON
  • BIBTEX

Confirm


Powered by WEKO3


Powered by WEKO3