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arXiv 0705.4216hep-thhep-ph
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具有反常和Chern-Simons项的N=1超引力的辛结构

Symplectic structure of N=1 supergravity with anomalies and Chern-Simons terms

Jan De Rydt, Jan Rosseel, Torsten T. Schmidt, Antoine Van Proeyen, Marco Zagermann

摘要:

物质耦合N=1超引力的一般作用量具有可能违反规范和超对称不变性的Peccei-Quinn项。此外,N=1的矢量多重态超引力也可能包含广义Chern-Simons项。这些经常被忽视的文献,尽管它们的重要性规范和超对称不变性。我们澄清的Peccei-Quinn条款,广义Chern-Simons条款和量子异常的背景下,N=1超引力的相互作用,并表现出的条件,必须满足他们的相互一致性。这种对先前已知的N=1物质耦合超引力作用量的扩展,自然是从规范群嵌入辛对偶变换群中得出的。我们的结果提供了超对称框架的研究弦紧化与轴子移位对称性,广义陈-西蒙斯条款和量子异常。

英文摘要:

The general actions of matter-coupled N=1 supergravity have Peccei-Quinn terms that may violate gauge and supersymmetry invariance. In addition, N=1 supergravity with vector multiplets may also contain generalized Chern-Simons terms. These have often been neglected in the literature despite their importance for gauge and supersymmetry invariance. We clarify the interplay of Peccei-Quinn terms, generalized Chern-Simons terms and quantum anomalies in the context of N=1 supergravity and exhibit conditions that have to be satisfied for their mutual consistency. This extension of the previously known N=1 matter-coupled supergravity actions follows naturally from the embedding of the gauge group into the group of symplectic duality transformations. Our results regarding this extension provide the supersymmetric framework for studies of string compactifications with axionic shift symmetries, generalized Chern-Simons terms and quantum anomalies.

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