Exact two-loop amplitudes for Higgs plus jet production with a cubic Higgs self-coupling
| Autor: | Haisch, Ulrich, Niggetiedt, Marco |
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| Rok vydání: | 2024 |
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| Druh dokumentu: | Working Paper |
| Popis: | We compute the corrections to the two-loop amplitudes for $gg \to h$, $gg \to hg$, $qg \to hq$, and $q \bar q \to hg$ due to a modified cubic Higgs self-coupling. The exact dependence on the Higgs and top-quark masses across the entire $2 \to 2$ phase space is determined by numerically solving a system of differential equations for the relevant master integrals. The calculated amplitudes are crucial for evaluating the impact of the considered corrections on exclusive $pp \to hj$ production at the hadronic event level. As an application, we calculate the non-universal, kinematic-dependent cubic Higgs self-coupling corrections to the Higgs-boson transverse momentum distribution in gluon-gluon fusion Higgs production for arbitrary values of the transverse momentum. Comment: 11 pages, 3 figures; v2: revised version of the manuscript as accepted for publication in JHEP |
| Databáze: | arXiv |
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