WEKO3
アイテム
Langevin simulation of the full QCD hadron mass spectrum on a lattice
http://hdl.handle.net/2241/98296
http://hdl.handle.net/2241/982962b1aff49-2391-437a-aa91-2be7e88045ea
名前 / ファイル | ライセンス | アクション |
---|---|---|
![]() |
|
Item type | Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2008-02-14 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Langevin simulation of the full QCD hadron mass spectrum on a lattice | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
著者 |
Fukugita, M.
× Fukugita, M.× Oyanagi, Y.× 宇川, 彰 |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Langevin simulation of quantum chromodynamics (QCD) on a lattice is carried out fully taking into account the effect of the quark vacuum polarization. It is shown that the Langevin method works well for full QCD and that simulation on a large lattice is practically feasible. A careful study is made of systematic errors arising from a finite Langevin time-step size. The magnitude of the error is found to be significant for light quarks, but the well-controlled extrapolation allows a separation of the values at the vanishing time-step size. As another important ingredient for the feasibility of Langevin simulation the advantage of the matrix inversion algorithm of the preconditioned conjugate residual method is described, as compared with various other algorithms. The results of a hadron-mass-spectrum calculation on a 93×18 lattice at β=5.5 with the Wilson quark action having two flavors are presented. It is shown that the contribution of vacuum quark loops significantly modifies the hadron masses in lattice units, but that the dominant part can be absorbed into a shift of the gauge coupling constant at least for the ground-state hadrons. Some suggestion is also presented for the physical effect of vacuum quark loops for excited hadrons. | |||||
言語 | en | |||||
書誌情報 |
en : Physical review D 巻 36, 号 3, p. 824-858, 発行日 1987-08-01 |
|||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 2470-0010 | |||||
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 | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1103/PhysRevD.36.824 | |||||
PubMed番号 | ||||||
識別子タイプ | PMID | |||||
関連識別子 | 09958238 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © 1987 The American Physical Society | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | American Physical Society |