Sea quark effects on quarkonia -: art. no. 114508

被引：46

作者：

Manke, T ^{[1
]}

Khan, AA

Aoki, S

Burkhalter, R

Ejiri, S

Fukugita, M

Hashimoto, S

Ishizuka, N

Iwasaki, Y

Kanaya, K

Kaneko, T

Kuramashi, Y

Nagai, K

Okawa, M

Shanahan, HP

Ukawa, A

Yoshié, T

机构：

[1] Univ Tsukuba, Ctr Computat Phys, Tsukuba, Ibaraki 3058577, Japan

[2] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan

[3] Univ Tokyo, Inst Cosm Ray Res, Tokyo 1888502, Japan

[4] High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

[5] Columbia Univ, Dept Phys, New York, NY 10027 USA

来源：

PHYSICAL REVIEW D | 2000年 / 62卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.62.114508

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the effects of two dynamical sea quarks on the spectrum of heavy quarkonia. Within the non-relativistic approach to lattice QCD we find sizable changes to the hyperfine splitting, but we do not observe any changes for the fine structure. We also investigate the scaling behavior of our results for several different lattice spacings.

引用

页码：1 / 13

页数：13

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