Hadron spectroscopy and static quark potential in full QCD: A comparison of improved actions on the CP-PACS

被引：22

作者：

Aoki, S ^{[1
]}

Boyd, G

Burkhalter, R

Hashimoto, S

Ishizuka, N

Iwasaki, Y

Kanaya, K

Kaneko, T

Kuramashi, Y

Okawa, M

Ukawa, A

Yoshie, T

机构：

[1] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 305, Japan

[2] Univ Tsukuba, Ctr Computat Phys, Tsukuba, Ibaraki 305, Japan

[3] KEK, High Energy Accelerator Res Org, Ctr Res Comp, Tsukuba, Ibaraki 305, Japan

[4] KEK, High Energy Accelerator Res Org, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 305, Japan

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1998年 / 63卷

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/S0920-5632(97)00728-7

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We present first results from a full QCD calculation on the CF-PACS, comparing various actions at a(-1) similar to 1GeV and m(pi)/m(rho) approximate to 0.7-0.9. We use the plaquette and a renormalization group improved action for the gluons, and the Wilson and the SW-Clover action for quarks. We find that significant improvements in the hadron spectrum results from improving the quarks, while the gluon improvement is required for a rotationally invariant static potential. An ongoing effort towards exploring the chiral limit in full QCD is described.

引用

页码：221 / 226

页数：6

共 11 条

[1] LATTICE QCD ON SMALL COMPUTERS [J].