Gauge couplings in four-dimensional Type I string orbifolds

被引：132
作者：
Antoniadis, I [1 ]
Bachas, C
Dudas, E
机构：
[1] Ecole Polytech, Ctr Phys Theor, F-91128 Palaiseau, France
[2] ENS, Theoret Phys Lab, F-75231 Paris, France
[3] Univ Paris Sud, LPT, F-91405 Orsay, France
来源：
NUCLEAR PHYSICS B | 1999年 / 560卷 / 1-3期
关键词：
D O I：
10.1016/S0550-3213(99)00452-6
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 compute threshold effects to gauge couplings in four-dimensional Z(N) orientifold models of type I strings with N = 2 and N = 1 supersymmetry, and study their dependence on the geometric moduli. We also compute the tree-level (disk) couplings of the open sector gauge fields to the twisted closed string moduli of the orbifold in various models and-study their effects and that of the one-loop threshold corrections on gauge coupling unification. We interpret the results from the (supergravity) effective theory point of view and comment on the conjectured heterotic-type I duality. (C) 1999 Elsevier Science B.V. All rights reserved.
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页码：93 / 134
页数：42
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