RENORMALIZATION-GROUP FLOWS IN GENERALIZED TODA FIELD-THEORIES

被引：10
|
作者：
GRISARU, MT
LERDA, A
PENATI, S
ZANON, D
机构：
[1] MIT,CTR THEORET PHYS,NUCL SCI LAB,CAMBRIDGE,MA 02139
[2] MIT,DEPT PHYS,CAMBRIDGE,MA 02139
[3] UNIV MILAN,DEPARTIMENTO FIS,I-20133 MILAN,ITALY
[4] NATL INST NUCL PHYS,MILAN,ITALY
来源：
NUCLEAR PHYSICS B | 1990年 / 346卷 / 2-3期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0550-3213(90)90281-H
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 study the scaling properties and renormalization-group flows of models that describe SU(N) Toda field theories in the presence of a background charge. In the Kosterlitz-Thouless region the N > 2 affine Toda theory is not renormalizable and additional couplings must be included. We consider the SU(3) case in detail and compute in perturbation theory the renormalization group beta-functions. We exhibit RG trajectories connecting UV and IR fixed points where the central charge matches the values of the central charge of conformal field theories with a W3 algebra. Finally, we generalized out results to arbitrary N. © 1990.
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页码：264 / 292
页数：29
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