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arXiv 1102.5510hep-th
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推广$O(α'^2)$阶的Chern-Simons耦合

Towards extending the Chern-Simons couplings at order $O(α'^2)$

Mohammad R. Garousi, Mozhgan Mir

备注：
30 pages, Latex file, one figure; the version appears in JHEP
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摘要：

利用D-$_p$ -膜上的反常Chern-Simons耦合与线性T-对偶和反对称B-场规范变换的相容性，最近发现了$O(α'^2)$阶的$C^{(p-3)}$的一些耦合.我们研究这些耦合与一个RR和两个反对称B-域顶点算子的S-矩阵元素。我们发现，S-矩阵元素再现这些耦合以及其他一些耦合。它们在线性T-对偶和B-场规范变换下都是不变的。

英文摘要：

Using the compatibility of the anomalous Chern-Simons couplings on D$_p$-branes with the linear T-duality and with the antisymmetric B-field gauge transformations, some couplings have been recently found for $C^{(p-3)}$ at order $O(α'^2)$. We examine these couplings with the S-matrix element of one RR and two antisymmetric B-field vertex operators. We find that the S-matrix element reproduces these couplings as well as some other couplings. Each of them is invariant under the linear T-duality and the B-field gauge transformations.

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