Regular celestial amplitudes
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866915674437189632 |
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| author | Liu, Reiko Ma, Wen-Jie |
| author_facet | Liu, Reiko Ma, Wen-Jie |
| contents | Conventional massless celestial amplitudes are distributional and fail to realize the celestial OPE -- most sharply in the non-MHV paradox, where OPEs predict nonzero celestial amplitudes with helicities $-{+}{+}+$ that are known to vanish at tree level. To resolve this, we introduce regular celestial amplitudes. We demonstrate that at tree-level, these amplitudes are non-distributional and, crucially, consistent with the celestial OPE. This suggests a revised dictionary: CCFT correlators are the regular, not conventional, celestial amplitudes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_05882 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Regular celestial amplitudes Liu, Reiko Ma, Wen-Jie High Energy Physics - Theory Conventional massless celestial amplitudes are distributional and fail to realize the celestial OPE -- most sharply in the non-MHV paradox, where OPEs predict nonzero celestial amplitudes with helicities $-{+}{+}+$ that are known to vanish at tree level. To resolve this, we introduce regular celestial amplitudes. We demonstrate that at tree-level, these amplitudes are non-distributional and, crucially, consistent with the celestial OPE. This suggests a revised dictionary: CCFT correlators are the regular, not conventional, celestial amplitudes. |
| title | Regular celestial amplitudes |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2512.05882 |