Exact two-loop amplitudes for Higgs plus jet production with a cubic Higgs self-coupling
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| Format: | Preprint |
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2024
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| _version_ | 1866929553625055232 |
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| author | Haisch, Ulrich Niggetiedt, Marco |
| author_facet | Haisch, Ulrich Niggetiedt, Marco |
| contents | 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. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2408_13186 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Exact two-loop amplitudes for Higgs plus jet production with a cubic Higgs self-coupling Haisch, Ulrich Niggetiedt, Marco High Energy Physics - Phenomenology High Energy Physics - Experiment 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. |
| title | Exact two-loop amplitudes for Higgs plus jet production with a cubic Higgs self-coupling |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2408.13186 |