Resummation for $s$-channel single-top production
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arXiv
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866908840099840000 |
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| author | Kidonakis, Nikolaos |
| author_facet | Kidonakis, Nikolaos |
| contents | I present higher-order results for $s$-channel single-top-quark production that are derived from soft-gluon resummation. I show that the soft-gluon corrections provide the dominant contribution to the QCD corrections, and that they approximate very well the exact results through NNLO. Furthermore, approximate N$^3$LO corrections are computed by using the expansion of the resummed cross section to third order in the strong coupling. The calculation treats the final-state $b$-quarks as massless but I also show how to extend the formalism to the case of massive $b$-quarks. The higher-order corrections are large at LHC energies and they improve the theoretical accuracy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_17631 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Resummation for $s$-channel single-top production Kidonakis, Nikolaos High Energy Physics - Phenomenology I present higher-order results for $s$-channel single-top-quark production that are derived from soft-gluon resummation. I show that the soft-gluon corrections provide the dominant contribution to the QCD corrections, and that they approximate very well the exact results through NNLO. Furthermore, approximate N$^3$LO corrections are computed by using the expansion of the resummed cross section to third order in the strong coupling. The calculation treats the final-state $b$-quarks as massless but I also show how to extend the formalism to the case of massive $b$-quarks. The higher-order corrections are large at LHC energies and they improve the theoretical accuracy. |
| title | Resummation for $s$-channel single-top production |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2502.17631 |