Anomalies, anomalous U(1)'s and generalized Chern-Simons terms
Anomalies, anomalous U(1)'s and generalized Chern-Simons terms
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异常、异常 U(1) 和广义 Chern-Simons 项
DOI：
10.1088/1126-6708/2006/11/057
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发表时间：
2006
影响因子：
5.4
通讯作者：
E. Kiritsis
中科院分区：
文献类型：
--
作者：
P. Anastasopoulos;M. Bianchi;Emilian Dudas;Emilian Dudas;Emilian Dudas;E. Kiritsis;E. Kiritsis
在场论和弦理论中对反常 U(1) 及其有效耦合进行了详细分析。它的动机是粒子物理学中这种耦合的可能相关性，以及区分弦理论与其他紫外线选项的潜在信号。对最常见的异常相关有效措施进行分析和参数化。它包含 Stuckelberg、轴离子和 Chern-Simons 类耦合。结果表明，这种耦合在东方弦真空中通常是不平凡的，并且通常不会被异常所固定。量子场论中的类似分析提供了类似的耦合。还计算了三线性规范玻色子耦合，并提倡它们的现象学相关性。我们在这个领域没有发现弦论和场论之间的质的差异。
A detailed analysis of anomalous U(1)'s and their effective couplings is performed both in field theory and string theory. It is motivated by the possible relevance of such couplings in particle physics, as well as a potential signal distinguishing string theory from other UV options. The most general anomaly related effective action is analyzed and parameterized. It contains Stuckelberg, axionic and Chern-Simons-like couplings. It is shown that such couplings are generically non-trivial in orientifold string vacua and are not in general fixed by anomalies. A similar analysis in quantum field theories provides similar couplings. The trilinear gauge boson couplings are also calculated and their phenomenological relevance is advocated. We do not find qualitative differences between string and field theory in this sector.