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arXiv 2012.01290hep-th
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从开弦场论中的经典解证明新的S-矩阵公式(或,不使用费曼规则导出壳层开弦场振幅,第II部分)

Proof of new S-matrix formula from classical solutions in open string field theory (or, Deriving on-shell open string field amplitudes without using Feynman rules, Part II)

Toru Masuda, Hiroaki Matsunaga, Toshifumi Noumi

摘要:

本文研究了开立方弦场论中修饰$ \mathcal B_0 $规范中的规范不变量与费曼图之间的关系。我们推导出一组递归关系,持有之间的条款,这个规范不变量。利用这些关系,我们证明了这个规范不变量在树水平上等于$S$ -矩阵。我们还证明了在[arXiv:2003.05021 [hep-th]]中提出的一组新的Feynman规则通过使用相同的组合恒等式正确地再现了在壳盘振幅。

英文摘要:

We study relation between the gauge invariant quantity obtained in [arXiv:1908.09784] and the Feynman diagrams in the dressed $ \mathcal B_0 $ gauge in the open cubic string field theory. We derive a set of recurrence relations that hold among the terms of this gauge invariant quantity. By using these relations, we prove that this gauge invariant quantity equals the $S$-matrix at the tree level. We also present a proof that a set of new Feynman rules proposed in [arXiv:2003.05021 [hep-th]] reproduces the onshell disc amplitudes correctly by using the same combinatorial identities.

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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