Flat space Fermionic Wave-function coefficients
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914223094759424 |
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| author | Chen, Bo-Ting Chen, Wei-Ming Huang, Yu-tin Huang, Zi-Xun Liu, Yohan |
| author_facet | Chen, Bo-Ting Chen, Wei-Ming Huang, Yu-tin Huang, Zi-Xun Liu, Yohan |
| contents | In this work we analyze the analytic structure of tree-level flat-space wavefunction coefficients (WFCs), with particular attention to fermionic operators, and derive cutting rules for internal-fermion lines. Building on these results, we set up an iterative procedure that, starting from the flat-space S-matrix, reconstructs the 3- and 4-point WFCs with the correct partial- and total-energy poles and satisfying the requisite cutting rules. Consequently, the "four-particle test" for flat-space WFCs imposes no additional constraints beyond the consistency of the flat-space S-matrix. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_22092 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Flat space Fermionic Wave-function coefficients Chen, Bo-Ting Chen, Wei-Ming Huang, Yu-tin Huang, Zi-Xun Liu, Yohan High Energy Physics - Theory In this work we analyze the analytic structure of tree-level flat-space wavefunction coefficients (WFCs), with particular attention to fermionic operators, and derive cutting rules for internal-fermion lines. Building on these results, we set up an iterative procedure that, starting from the flat-space S-matrix, reconstructs the 3- and 4-point WFCs with the correct partial- and total-energy poles and satisfying the requisite cutting rules. Consequently, the "four-particle test" for flat-space WFCs imposes no additional constraints beyond the consistency of the flat-space S-matrix. |
| title | Flat space Fermionic Wave-function coefficients |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2512.22092 |