ON GAUGE COUPLINGS IN STRING THEORY

被引：157

作者：

KAPLUNOVSKY, V ^{[1
]}

LOUIS, J ^{[1
]}

机构：

[1] UNIV MUNICH,SEKT PHYS,D-80333 MUNICH,GERMANY

来源：

NUCLEAR PHYSICS B | 1995年 / 444卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0550-3213(95)00172-O

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 investigate the field dependence of the gauge couplings of N = 1 string vacua from the point of view of the low energy effective quantum field theory. We find that field-theoretical considerations severely constrain the form of the string loop corrections; in particular, the dilaton dependence of the gauge couplings is completely universal at the one-loop level. The moduli dependence of the string threshold corrections is also constrained, and we illustrate the power of such constraints with a detailed discussion of the orbifold vacua and the (2, 2) (Calabi-Yau) vacua of the heterotic string.

引用

页码：191 / 244

页数：54

共 103 条

[1] SUPERGRAVITY AND MATTER - LINEAR MULTIPLET COUPLINGS AND KAHLER ANOMALY CANCELLATION [J].