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arXiv 2108.02302hep-th
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强耦合$\mathcal{N}=4$超Yang-Mills中Reggeon束缚态的研究

Exploring Reggeon bound states in strongly-coupled $\mathcal{N}=4$ super Yang-Mills

Theresa Abl, Martin Sprenger

摘要:

强耦合$\mathcal{N}=4$ super Yang-Mills中散射振幅的多Regge极限由热力学Bethe方程组的大质量极限描述。一个非平凡的剩余功能出现在这个设置在某些运动学区域由于激励的TBA方程出现在这些运动学区域的分析延续。到目前为止,这些解析延拓都是针对6-和7-胶子余项函数逐个进行的。在这篇文章中,我们证明了对于任意数量的粒子,出现在多Regge极限中的任何解析延拓中的可能激发的集合是相当受约束的。特别地,我们证明了任何可能的Reggeon束缚态的BFKL本征值是出现在六胶子情况下的两个Reggeon BFKL本征值的倍数。

英文摘要:

The multi-Regge limit of scattering amplitudes in strongly-coupled $\mathcal{N}=4$ super Yang-Mills is described by the large mass limit of a set of thermodynamic Bethe ansatz (TBA) equations. A non-trivial remainder function arises in this setup in certain kinematical regions due to excitations of the TBA equations which appear during the analytic continuation into these kinematical regions. So far, these analytic continuations were carried out on a case-by-case basis for the six- and seven-gluon remainder function. In this note, we show that the set of possible excitations appearing in any analytic continuation in the multi-Regge limit for any number of particles is rather constrained. In particular, we show that the BFKL eigenvalue of any possible Reggeon bound state is a multiple of the two-Reggeon BFKL eigenvalue appearing in the six-gluon case.

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。

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