arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1201.2655hep-th
收藏

三粒子超弦振幅与大质量腿

Three particle superstring amplitudes with massive legs

Rutger H. Boels

摘要:

在壳超空间和相关的旋量螺旋技术给出了一个有效的制定的沃德恒等式的在壳超对称性的散射振幅和供应工具,以构建其解决方案。本文利用这些技巧给出了一维和八维简单超对称三粒子散射振幅的一般解。它示出的例子中,这些解决方案可以用来获得具体的振幅封闭(IIB)和开放超弦在一个平坦的背景。明确的结果包括所有三个点的振幅与一个大规模的腿,其功能的形式是完全由超庞加莱对称性。由此产生的令人惊讶的简单系列只涉及由完全对称的小群表示标记的大质量超场。开始了对弦论中更一般的三点振幅和更高点振幅的推广。在附录中,开超弦和闭超弦的基本大质量超场的场内容以各种可能独立感兴趣的群的Dynkin标签的形式列出。

英文摘要:

On-shell superspaces and associated spinor helicity techniques give an efficient formulation of the Ward identities of on-shell supersymmetry for scattering amplitudes and supply tools to construct their solutions. Based on these techniques in this paper the general solutions of the Ward identities are presented for three particle scattering amplitudes with one, two or three massive legs for simple supersymmetry in ten and eight dimensions. It is shown in examples how these solutions may be used to obtain concrete amplitudes for the closed (IIB) and open superstring in a flat background. Explicit results include all three point amplitudes with one massive leg whose functional form is shown to be dictated completely by super-Poincare symmetry. The resulting surprisingly simple series only involves massive superfields labelled by completely symmetric little group representations. The extension to more general explicit three and higher point amplitudes in string theory is initiated. In appendices the field content of the fundamental massive superfields of the open and closed superstring are listed in terms of the Dynkin labels of a variety of groups which may be of independent interest.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑