I=2 pion scattering length with the Wilson fermion -: art. no. 077501

被引：40

作者：

Aoki, S ^{[1
]}

Fukugita, M

Hashimoto, S

Ishikawa, KI

Ishizuka, N

Iwasaki, Y

Kanaya, K

Kaneko, T

Kuramashi, Y

Okawa, M

Onogi, T

Tominaga, S

Tsutsui, N

Ukawa, A

Yamada, N

Yoshié, T

机构：

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

[2] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan

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

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

[5] Hiroshima Univ, Dept Phys, Hiroshima 7398526, Japan

[6] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan

来源：

PHYSICAL REVIEW D | 2002年 / 66卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.66.077501

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The calculation of the I = 2 pion scattering length in quenched lattice QCD is reexamined. The calculation is carried out with the Wilson fermion action employing Luscher's finite size scaling method at beta = 5.9, 6.1, and 6.3 corresponding to the range of lattice spacing a similar or equal to 0.12-0.07 fm. We obtain in the continuum limit a(0)/m(pi) = -2.09(35) 1/GeV2, which is consistent with the prediction of chiral perturbation theory a(0)/m(pi) = -2.265(51)1/GeV2.

引用

页数：4

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