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arXiv 1507.02641hep-thgr-qchep-phmath-phmath.MP
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关于新的体奇异结构、非对称图象中的RR耦合及其全阶$α'$修正

On New Bulk Singularity Structures, RR Couplings in Asymmetric Picture and Their All Order $α'$ Corrections

Ehsan Hatefi

摘要:

我们详细分析了弦论振幅的四点函数和五点函数,包括非对称图中的闭弦Ramond-Ramond(RR)和IIA和IIB中的两个或三个横向标量场。导出了这些S-矩阵的完全形式,并将这些非对称S-矩阵与它们的对称结果进行了比较。这导致我们探索两种不同类型的体奇性结构以及各种新的耦合在不对称图片的振幅在第二类弦论。所有的顺序$α'$更高的衍生物的修正,这些新的耦合已被发现。对这两种新的体奇异结构和S矩阵的接触相互作用也作了一些评论。

英文摘要:

We have analyzed in detail four and five point functions of the string theory amplitudes, including a closed string Ramond-Ramond (RR) in an asymmetric picture and either two or three transverse scalar fields in both IIA and IIB. The complete forms of these S-matrices are derived and these asymmetric S-matrices are also compared with their own symmetric results. This leads us to explore two different kinds of bulk singularity structures as well as various new couplings in asymmetric picture of the amplitude in type II string theory. All order $α'$ higher derivative corrections to these new couplings have been discovered as well. Several remarks for these two new bulk singularity structures and for contact interactions of the S-Matrix have also been made.

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