The k=2 string tension in four-dimensional SU(N) gauge theories

被引：55

作者：

Lucini, B ^{[1
]}

Teper, M ^{[1
]}

机构：

[1] Univ Oxford, Oxford OX1 3NP, England

来源：

PHYSICS LETTERS B | 2001年 / 501卷 / 1-2期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/S0370-2693(01)00097-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the k = 2 string tension in SU(4) and SU(5) gauge theories in 3 + 1 dimensions. and compare it to the k = 1 fundamental string tension. We find, from the continuum extrapolation of our lattice calculations, that sigma (k=2)/sigma (f) = 1.40+/-0.08 in the SU(4) gauge theory, and that sigma (k=2)/sigma (f) = 1.56+/-0.10 in SU(5). We remark upon the way this might constrain the dynamics of confinement and the intriguing implications it might have for the mass spectrum of SU(N) gauge theories. We also note that these results agree closely with the MQCD-inspired conjecture that the SU(N) string tension varies as sigma (k) proportional to sin(pik/N). (C) 2001 Published by Elsevier Science B.V.

引用

页码：128 / 133

页数：6

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