Slepton pair production at next-to-leading power
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866909002360684544 |
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| author | Braseth, Lasse Lorentz Klungland, Tore Raklev, Are |
| author_facet | Braseth, Lasse Lorentz Klungland, Tore Raklev, Are |
| contents | Near threshold, cross sections for the production of heavy particles are sensitive to large logarithmic terms, which must be resummed to all orders in perturbation theory. Current state-of-the art calculations for inclusive slepton pair production at hadron colliders has focused on higher-order logarithms in the leading power of the threshold variable. Here, we evaluate the next-to-leading power contribution in the threshold variable to leading logarithmic accuracy. We find that the next-to-leading power contributions can be significant compared to the next-to-leading logarithmic terms at leading power, and that existing calculations underestimate the scale error for large slepton masses. We include results for a potential future FCC-hh machine at $\sqrt{s}=85$ TeV. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_07397 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Slepton pair production at next-to-leading power Braseth, Lasse Lorentz Klungland, Tore Raklev, Are High Energy Physics - Phenomenology Near threshold, cross sections for the production of heavy particles are sensitive to large logarithmic terms, which must be resummed to all orders in perturbation theory. Current state-of-the art calculations for inclusive slepton pair production at hadron colliders has focused on higher-order logarithms in the leading power of the threshold variable. Here, we evaluate the next-to-leading power contribution in the threshold variable to leading logarithmic accuracy. We find that the next-to-leading power contributions can be significant compared to the next-to-leading logarithmic terms at leading power, and that existing calculations underestimate the scale error for large slepton masses. We include results for a potential future FCC-hh machine at $\sqrt{s}=85$ TeV. |
| title | Slepton pair production at next-to-leading power |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2510.07397 |