EXPLORATORY-STUDY OF NUCLEON-NUCLEON-SCATTERING LENGTHS IN LATTICE QCD

被引：43

作者：

FUKUGITA, M

KURAMASHI, Y

MINO, H

OKAWA, M

UKAWA, A

机构：

[1] KEK NAT LAB HIGH ENERGY PHYS,TSUKUBA,IBARAKI 305,JAPAN

[2] YAMANASHI UNIV,FAC ENGN,KOFU,YAMANASHI 404,JAPAN

[3] UNIV TSUKUBA,INST PHYS,TSUKUBA,IBARAKI 305,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.73.2176

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An exploratory study is made of the nucleon-nucleon s-wave scattering lengths in quenched lattice QCD with the Wilson quark action. The pi-N and pi-pi scattering lengths are also calculated for comparison. The calculations are made with heavy quarks corresponding to m(pi)m(p) approximate to 0.73-0.95. The results show that the N-N system has an attractive force in both spin singlet and triplet channels, with their scattering lengths significantly larger than those for the pi-N and pi-pi cases, a trend which is qualitatively consistent with the experiment. Problems toward a more realistic calculation for light quarks are discussed.

引用

页码：2176 / 2179

页数：4

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