Super-Leading Logarithms in Top-Quark Pair Production at Hadron Colliders
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866917049040633856 |
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| author | Banerjee, Upalaparna Grünhofer, Romy König, Matthias Li, Yibei Neubert, Matthias Scholze, Josua |
| author_facet | Banerjee, Upalaparna Grünhofer, Romy König, Matthias Li, Yibei Neubert, Matthias Scholze, Josua |
| contents | To date, the appearance and resummation of "super-leading" logarithms in hadron-hadron collisions has been studied only for massless parton states. We extend the formalism to include an arbitrary number of massive final states. We derive the corresponding anomalous dimension and identify an additional Coulomb phase that gives rise to a new source of super-leading logarithms. We then perform a systematic leading-logarithmic resummation of these contributions for $2\to M$ processes. Finally, we analyze the numerical impact in partonic scattering processes for $t\bar{t}$ production, including a treatment of the Sommerfeld enhancement observed near threshold. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_24848 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Super-Leading Logarithms in Top-Quark Pair Production at Hadron Colliders Banerjee, Upalaparna Grünhofer, Romy König, Matthias Li, Yibei Neubert, Matthias Scholze, Josua High Energy Physics - Phenomenology To date, the appearance and resummation of "super-leading" logarithms in hadron-hadron collisions has been studied only for massless parton states. We extend the formalism to include an arbitrary number of massive final states. We derive the corresponding anomalous dimension and identify an additional Coulomb phase that gives rise to a new source of super-leading logarithms. We then perform a systematic leading-logarithmic resummation of these contributions for $2\to M$ processes. Finally, we analyze the numerical impact in partonic scattering processes for $t\bar{t}$ production, including a treatment of the Sommerfeld enhancement observed near threshold. |
| title | Super-Leading Logarithms in Top-Quark Pair Production at Hadron Colliders |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2510.24848 |