Exploring QCD at small sea quark masses with improved Wilson-type quarks
Nuclear Physics B Proceedings Supplements Volume 119
Page 335-337
published_at 2003
アクセス数 : 945 件
ダウンロード数 : 197 件
今月のアクセス数 : 5 件
今月のダウンロード数 : 4 件
この文献の参照には次のURLをご利用ください : https://ir.lib.hiroshima-u.ac.jp/00014512
| File | |
| Title ( eng ) |
Exploring QCD at small sea quark masses with improved Wilson-type quarks
|
| Creator |
CP-PACS Collaboration
Namekawa Y
Aoki S
Fukugita M
Ishizuka N
Iwasaki Y
Kanaya K
Kaneko T
Kuramashi Y
Lesk V. I.
Taniguch Y
Ukawa A
Umeda T
Yoshié T
|
| Source Title |
Nuclear Physics B Proceedings Supplements
|
| Volume | 119 |
| Start Page | 335 |
| End Page | 337 |
| Abstract |
We explore the region of small sea quark masses belowmps/mv= 0.5 in two-flavor QCD using a mean-field improved clover quark action and an RG-improved gauge action ata 0.2 fm on 123 × 24 and 163 × 24 lattices. We find that instability of the standard BiCGStab algorithm at small quark masses can be mostly removed by the BiCGStab(DS-L) algorithm, which employsL-th minimal residual polynomials with a dynamical selection ofL. We also find singular spikes of ΔH in the HMC algorithm at moderate values of Δτ. Nature of the spike is studied. We also study finite-size effects and chiral properties of meson masses.
|
| NDC |
Physics [ 420 ]
|
| Language |
eng
|
| Resource Type | journal article |
| Publisher |
Elsevier Science B.V.
|
| Date of Issued | 2003 |
| Rights |
Copyright (c) 2003 Elsevier Science B.V.
|
| Publish Type | Author’s Original |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0920-5632
[DOI] http://dx.doi.org/10.1016/S0920-5632(03)01540-8
isVersionOf
|
