MadNIS at NLO
Fuente:
arXiv
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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866908947187761152 |
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| author | De Crescenzo, Giovanni Villadamigo, Javier Mariño Elmer, Nina Heimel, Theo Plehn, Tilman Winterhalder, Ramon Zaro, Marco |
| author_facet | De Crescenzo, Giovanni Villadamigo, Javier Mariño Elmer, Nina Heimel, Theo Plehn, Tilman Winterhalder, Ramon Zaro, Marco |
| contents | We combine fast amplitude surrogates with neural importance sampling to accelerate NLO calculations. For virtual corrections, a learned ratio to the Born matrix element with calibrated uncertainties guarantees reliable precision across phase space. For real emission, we stick to the standard FKS subtraction and train sector-conditioned surrogates of the regularized integrands away from divergences. MadNIS then uses multi-channel mappings and FKS sectors as conditions. We validate our approach for electron-positron scattering to three and four jets and find significant speed-ups and variance reduction in the integration. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_22407 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | MadNIS at NLO De Crescenzo, Giovanni Villadamigo, Javier Mariño Elmer, Nina Heimel, Theo Plehn, Tilman Winterhalder, Ramon Zaro, Marco High Energy Physics - Phenomenology We combine fast amplitude surrogates with neural importance sampling to accelerate NLO calculations. For virtual corrections, a learned ratio to the Born matrix element with calibrated uncertainties guarantees reliable precision across phase space. For real emission, we stick to the standard FKS subtraction and train sector-conditioned surrogates of the regularized integrands away from divergences. MadNIS then uses multi-channel mappings and FKS sectors as conditions. We validate our approach for electron-positron scattering to three and four jets and find significant speed-ups and variance reduction in the integration. |
| title | MadNIS at NLO |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2603.22407 |