THE EXACT MASS GAP OF THE O(3) AND O(4) NONLINEAR SIGMA-MODELS IN D=2

被引：209

作者：

HASENFRATZ, P

MAGGIORE, M

NIEDERMAYER, F

机构：

[1] Institute for Theoretical Physics, University of Bern, CH-3012 Bern

来源：

PHYSICS LETTERS B | 1990年 / 245卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(90)90685-Y

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

By comparing the Bethe Ansatz solution with perturbation theory we obtain the exact results m = 8 e ΛMS and m = ( 32 πe) 1 2 ΛMS for the O(3) and O(4) non-linear σ-models, respectively. Here ΛMS is the renormalization group invariant scale in the MS scheme. © 1990.

引用

页码：522 / 528

页数：7

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