The calculation of 2-loop self-energy diagrams by the sector decomposition
Fuente:
arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2026
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| _version_ | 1866918303662866432 |
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| author | Kato, Kiyoshi |
| author_facet | Kato, Kiyoshi |
| contents | Detailed description of the calculation of the 2-loop self-energy for a scalar particle is presented. By employing a simple sector decomposition method, the ultraviolet divergent part is efficiently separated from the finite part. The resulting expression can be used for both analytic and numerical computation to renormalize the divergence and to provide finite results for physics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_17381 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | The calculation of 2-loop self-energy diagrams by the sector decomposition Kato, Kiyoshi High Energy Physics - Phenomenology Detailed description of the calculation of the 2-loop self-energy for a scalar particle is presented. By employing a simple sector decomposition method, the ultraviolet divergent part is efficiently separated from the finite part. The resulting expression can be used for both analytic and numerical computation to renormalize the divergence and to provide finite results for physics. |
| title | The calculation of 2-loop self-energy diagrams by the sector decomposition |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2601.17381 |