Massless S-matrix Bootstraps and RG Flows
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866914055927627776 |
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| author | Ahn, Changrim |
| author_facet | Ahn, Changrim |
| contents | We find complete solutions of S-matrix bootstrap equations for the scatterings of massless particles in (1+1) dimensions with A_n symmetries. We show that only three types (minimal, diagonal, and saturated cases) of these S-matrices can generate RG flows that lead to UV-complete theories, and other RG flows predicted in [11] are inconsistent with the bootstrap equations. Using these S-matrices, we derived the TBA equations and corresponding Y-systems that generate the RG flows between the IR and UV CFTs. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2509_20740 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Massless S-matrix Bootstraps and RG Flows Ahn, Changrim High Energy Physics - Theory We find complete solutions of S-matrix bootstrap equations for the scatterings of massless particles in (1+1) dimensions with A_n symmetries. We show that only three types (minimal, diagonal, and saturated cases) of these S-matrices can generate RG flows that lead to UV-complete theories, and other RG flows predicted in [11] are inconsistent with the bootstrap equations. Using these S-matrices, we derived the TBA equations and corresponding Y-systems that generate the RG flows between the IR and UV CFTs. |
| title | Massless S-matrix Bootstraps and RG Flows |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2509.20740 |