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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2021
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2112.09123 |
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| _version_ | 1866915042729918464 |
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| author | Lin, Guanda Yang, Gang Zhang, Siyuan |
| author_facet | Lin, Guanda Yang, Gang Zhang, Siyuan |
| contents | We obtain the full-color four-loop three-point form factor of the stress-tensor supermultiplet in N=4 SYM, based on the color-kinematics (CK) duality and generalized unitarity method. The CK-dual solution, while manifesting all dual Jacobi relations and satisfying the minimal power-counting of loop momenta, lies in a 133-dimensional solution space. We also show that the planar form factor integrand satisfies precisely a directional dual conformal symmetry in the lightlike limit of the operator momentum, which is supported by explicit four-loop calculations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2112_09123 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Color-Kinematics Duality and Dual Conformal Symmetry for A Four-loop Form Factor in N=4 SYM Lin, Guanda Yang, Gang Zhang, Siyuan High Energy Physics - Theory High Energy Physics - Phenomenology We obtain the full-color four-loop three-point form factor of the stress-tensor supermultiplet in N=4 SYM, based on the color-kinematics (CK) duality and generalized unitarity method. The CK-dual solution, while manifesting all dual Jacobi relations and satisfying the minimal power-counting of loop momenta, lies in a 133-dimensional solution space. We also show that the planar form factor integrand satisfies precisely a directional dual conformal symmetry in the lightlike limit of the operator momentum, which is supported by explicit four-loop calculations. |
| title | Color-Kinematics Duality and Dual Conformal Symmetry for A Four-loop Form Factor in N=4 SYM |
| topic | High Energy Physics - Theory High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2112.09123 |