MASSLESS FACTORIZED SCATTERING AND SIGMA-MODELS WITH TOPOLOGICAL TERMS

被引：198

作者：

ZAMOLODCHIKOV, AB

机构：

[1] ECOLE NORM SUPER, PHYS STAT LAB, F-75231 PARIS 05, FRANCE

[2] INST THEORET & EXPTL PHYS, MOSCOW 117259, USSR

来源：

NUCLEAR PHYSICS B | 1992年 / 379卷 / 03期

关键词：

D O I：

10.1016/0550-3213(92)90136-Y

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We propose two massless non-diagonal scattering theories with SU(2) isotopic symmetry. While being identical in the right- and left-moving sectors, they differ in the right-left scattering. The first theory has reflectionless resonance right-left amplitudes and exhibits two independent (right and left) SU(2) symmetries. It is suggested as a scattering theory of the SU(2) x SU(2) principal chiral model with the Wess-Zumino term of level k = 1. In the second scattering theory only one SU(2) group survives at finite distances. We interpret this one as corresponding to the O(3) sigma model with the theta = pi-topological term. In both the cases the thermodynamic Bethe ansatz equations are derived.

引用

页码：602 / 623

页数：22

共 60 条

[51] SOME EXACT RESULTS FOR MANY-BODY PROBLEM IN ONE DIMENSION WITH REPULSIVE DELTA-FUNCTION INTERACTION [J].