Top-Yukawa contributions to $pp\to b\bar{b}H$: two-loop leading-colour amplitudes
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| Format: | Preprint |
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2026
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| _version_ | 1866914434262237184 |
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| author | Hartanto, Heribertus Bayu Poncelet, Rene |
| author_facet | Hartanto, Heribertus Bayu Poncelet, Rene |
| contents | We derive two-loop scattering amplitudes for bottom-quark pair production in association with a Higgs boson at the LHC, focusing on terms proportional to the top-quark Yukawa coupling. We treat the bottom quark as a massless parton and employ both the leading-colour and heavy-top-quark approximations. The finite remainder of the two-loop amplitude is expressed in terms of one-mass pentagon functions, and the corresponding rational coefficients are reconstructed analytically from evaluations over finite fields. The scattering processes considered in this work also constitute a subset of Higgs+2-jet production at the LHC in the heavy-top-quark approximation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_29480 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Top-Yukawa contributions to $pp\to b\bar{b}H$: two-loop leading-colour amplitudes Hartanto, Heribertus Bayu Poncelet, Rene High Energy Physics - Phenomenology We derive two-loop scattering amplitudes for bottom-quark pair production in association with a Higgs boson at the LHC, focusing on terms proportional to the top-quark Yukawa coupling. We treat the bottom quark as a massless parton and employ both the leading-colour and heavy-top-quark approximations. The finite remainder of the two-loop amplitude is expressed in terms of one-mass pentagon functions, and the corresponding rational coefficients are reconstructed analytically from evaluations over finite fields. The scattering processes considered in this work also constitute a subset of Higgs+2-jet production at the LHC in the heavy-top-quark approximation. |
| title | Top-Yukawa contributions to $pp\to b\bar{b}H$: two-loop leading-colour amplitudes |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2603.29480 |